GB/T standards: GB/T 20851.3-2019 to GB/T 21412.15-2017

500 standards in English, in code order.

1. GB/T 20851.3-2019Electronic toll collection - Dedicated short range communication - Part 3: Application layer$480.00
2. GB/T 20851.4-2019Electronic toll collection - Dedicated short range communication - Part 4: Equipment application$440.00
3. GB/T 20851.5-2007[including 2012XG] Electronic toll collection -- Dedicated short range communication -- Part 5: Test methods of the main parameters in physical layer$85.00
4. GB/T 20851.5-2019Electronic toll collection - Dedicated short range communication - Part 5: Test methods of the main parameters in physical layer$365.00
5. GB/T 20853-2026Corrosion of metals and alloys - Corrosion in artificial atmosphere - Accelerated corrosion test involving exposure under controlled conditions of humidity cycling and intermitted spraying of a salt solution$620.00
6. GB/T 20856-2012Aircraft de-icing/anti-icing - Newtonian fluids, type I$200.00
7. GB/T 20857-2012Aircraft de-icing/anti-icing non - Newtonian fluids, type II, III and IV$260.00
8. GB/T 20861-2007Terminology of waste product recovery$60.00
9. GB/T 20862-2007Directives of the calculation method for recoverability rate of products$80.00
10. GB/T 20863.1-2021Cranes - Classification - Part 1: General$245.00
11. GB/T 20863.2-2025Cranes - Classification - Part 2: Mobile cranes$245.00
12. GB/T 20863.3-2025Cranes - Classification - Part 3: Tower cranes$245.00
13. GB/T 20863.5-2007Cranes -- Classification -- Part 5: Overhead travelling and portal bridge cranes$45.00
14. GB/T 20864-2021Rice transplanter—Specification$155.00
15. GB/T 20865-2017No or little-tillage fertilizes-seeder$240.00
16. GB/T 20867-2007Robotics - Application specification for safety requirements - Part 1: Industrial robot$614.00
17. GB/T 20867.1-2024Robotics - Application specification for safety requirements - Part 1: Industrial robot$500.00
18. GB/T 20870.10-2023Semiconductor devices - Part 16-10: Technology Approval Schedule for monolithic microwave integrated circuits$790.00
19. GB/T 20870.2-2023Semiconductor devices - Part 16-2: Microwave integrated circuits - Frequency prescalers$425.00
20. GB/T 20870.4-2024Semiconductor devices - Part 16-4: Microwave integrated circuits - Switches$410.00
21. GB/T 20870.5-2023Semiconductor devices - Part 16-5: Microwave integrated circuits - Oscillators$590.00
22. GB/T 20871.12-2024Organic light emitting diode(OLED) displays - Part 1-2: Terminology and letter symbols$530.00
23. GB/T 20871.61-2024Organic light emitting diode(OLED) displays - Part 6-1: Measuring methods of optical and electro-optical parameters$575.00
24. GB/T 20871.62-2025Organic light emitting diode displays - Part 6-2: Test methods - Visual quality and ambient performance$575.00
25. GB/T 20871.63-2021Organic light emitting diode (OLED) displays - Part 6-3: Measuring methods of image quality$620.00
26. GB/T 20878-2024Stainless steels - Designation and chemical composition$585.00
27. GB/T 20879-2026Technical requirements for pest risk analysis for imported plants and plant products$365.00
28. GB/T 20880-2018Edible dextrose$150.00
29. GB/T 20882-2007Quality requirements for starch sugar - Part 1: Edible dextrose$274.00
30. GB/T 20882.1-2025Quality requirements for starch sugar — Part 1: Edible dextrose$260.00
31. GB/T 20882.2-2021Quality requirements for starch sugar — Part 2: Glucose syrup and glucose syrup powder$210.00
32. GB/T 20882.3-2021Quality requirements for starch sugar—Part 3:Crystalline fructose and solid fructose-glucose$155.00
33. GB/T 20882.4-2021Quality requirements for starch sugars - Part 4: High fructose syrup$140.00
34. GB/T 20882.5-2025Quality requirements for starch sugar — Part 5: Maltose$305.00
35. GB/T 20882.6-2021Quality requirements for starch sugars - Part 6: Maltodextrin$200.00
36. GB/T 20882.7-2025Quality requirements for starch sugar — Part 7: Trehalose$260.00
37. GB/T 20883-2017Maltose$205.00
38. GB/T 20884-2007Maltodextrin$45.00
39. GB/T 20886.1-2021Quality requirements for yeast products - Part 1: Yeast for food processing$365.00
40. GB/T 20886.2-2021Quality requirements for yeast products - Part 2: Processed yeast products$395.00
41. GB/T 20887.1-2017Continuously hot-rolled high strength steel sheet and strip for automobiles - Part 1: High yield strength steel for cold forming$120.00
42. GB/T 20887.2-2022Continuously hot rolled high strength steel sheet and strip for automobile—Part 2: High hole expansion steel$170.00
43. GB/T 20887.3-2022Continuously hot rolled high strength steel sheet and strip for automobile—Part 3: Dual phase steel$170.00
44. GB/T 20887.4-2022Continuously hot rolled high strength steel sheet and strip for automobile—Part 4: Transformation induced plasticity steel$170.00
45. GB/T 20887.5-2022Continuously hot rolled high strength steel sheet and strip for automobile—Part 5: Martensitic steel$170.00
46. GB/T 20887.6-2017Continuously hot-rolled high strength steel sheet and strip for automobiles - Part 6: Complex phase steel$130.00
47. GB/T 20887.7-2017Continuously hot-rolled high strength steel sheet and strip for automobiles - Part 7: Steels for hydraulic forming$100.00
48. GB/T 20888.1-2020Machinery for forestry - Safety requirements and testing for pole-mounted powered pruners - Part 1: Machines fitted with an integral combustion engine$245.00
49. GB/T 20888.2-2020Machinery for forestry - Safety requirements and testing for pole-mounted powered pruners - Part 2: Machines for use with back-pack power source$155.00
50. GB/T 20892-2020Praseodymium-neodymium metal$95.00
51. GB/T 20893-2007Terbium metal$80.00
52. GB/T 20895.1-2025Small craft - Stability and buoyancy assessment and categorization - Part 1: Non-sailing boats of hull length greater than or equal to 6 m$1,040.00
53. GB/T 20895.2-2025Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing boats of hull length greater than or equal to 6 m$925.00
54. GB/T 20895.3-2025Small craft - Stability and buoyancy assessment and categorization - Part 3: Boats of hull length less than 6 m$905.00
55. GB/T 20897.4-2019Inflatable boats -- Part 4: Boats with a hull length of between 8 m and 24 m with a motor power rating of 15 kW and greater$360.00
56. GB/T 20899.1-2019Methods for chemical analysis of gold ores—Part 1:Determination of gold content$260.00
57. GB/T 20899.10-2025Methods for chemical analysis of gold ores — Part 10: Determination of antimony content$250.00
58. GB/T 20899.12-2016Methods for chemical analysis of gold ores - Part 12: Determination of arsenic, mercury, cadmium, lead and bismuth contents - Atomic fluorescence spectrometric method$150.00
59. GB/T 20899.13-2017Methods for chemical analysis of gold ores-Part 13: Determination of lead,zinc,bismuth,cadminum,chromium,arsenic and mercury contents —Inductively coupled plasma atomic emission spectrometry$150.00
60. GB/T 20899.14-2017Methods for chemical analysis of gold ores-Part 14: Determination of thallium content - Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry$150.00
61. GB/T 20899.15-2023Methods for chemical analysis of gold ores—Part 15: Determination of copper， lead， zinc， silver， iron， manganese， nickel， cobalt， aluminum， chromium， cadmium， antimony， bismuth， arsenic， mercury， selenium， barium and beryllium contents—Inductively coupled plasma mass spectrometry method$245.00
62. GB/T 20899.2-2019Methods for chemical analysis of gold ores - Part 2:Determination of silver content - Flame atomic absorption spectrometric method$90.00
63. GB/T 20899.3-2019Methods for chemical analysis of gold ores—Part 3:Determination of arsenic content$160.00
64. GB/T 20899.4-2021Methods for chemical analysis of gold ores—Part 4: Determination of copper content$215.00
65. GB/T 20899.5-2021Methods for chemical analysis of gold ores—Part 5: Determination of lead content$215.00
66. GB/T 20899.6-2021Methods for chemical analysis of gold ores—Part 6: Determination of zinc content$155.00
67. GB/T 20899.7-2022Methods for chemical analysis of gold ores—Part 7: Determination of iron content$155.00
68. GB/T 20899.8-2022Methods for chemical analysis of gold ores—Part 8: Determination of sulfur content$215.00
69. GB/T 20899.9-2025Methods for chemical analysis of gold ores — Part 9: Determination of carbon content$245.00
70. GB/T 20901-2007Specification for equipping and managing of measuring instrument of energy in petroleum and petrochemical industry$50.00
71. GB/T 20902-2007Specification for equipping and managing of the measuring instrument of energy in the nonferrous metals smelters$110.00
72. GB/T 20903-2007Classification of condiment$110.00
73. GB/T 20907-2024Technical specification for the automatic fare collection system of urban rail transit$390.00
74. GB/T 20908-2007General specification for the contact line measuring car of urban rail transit$140.00
75. GB/T 20909-2017Steel windows and doors$390.00
76. GB/T 20910-2025Temperature and pressure safety valves for hot water supply systems$245.00
77. GB/T 20913-2007The protection of the occupants in the event of an off-set frontal collision for passenger car$220.00
78. GB/T 20914.3-2019Stamping dies -- Gas springs -- Part 3: Gas spring with increased spring force and compact built height$270.00
79. GB/T 20914.4-2019Stamping dies -- Gas springs -- Part 4: Gas spring with increased spring force and same built height$150.00
80. GB/T 20916-2007Specification for the Chinese office file format$8,060.00
81. GB/T 20918-2007Information technology - Software life cycle processes - Risk management$230.00
82. GB/T 20919-2018External micrometer with electronic digital display$170.00
83. GB/T 20920-2007Electronic level meter$140.00
84. GB/T 20923-2025Service indicators and evaluation methods for road freight transport enterprises$305.00
85. GB/T 20925-2007Data exchange for passenger transport settlement based on XML$170.00
86. GB/T 20926-2007Magnesium and magnesium alloy scraps$140.00
87. GB/T 20927-2026Recycled titanium raw material$200.00
88. GB/T 20928-2020Seamless inner grooved copper tube$290.00
89. GB/T 20929-2007The methods of testing acidithiobacillus ferrooxidans and its activity by microarray technology$230.00
90. GB/T 20930-2015lithium strip$100.00
91. GB/T 20931.1-2007Methods for chemical analysis of lithium - Determination of potassium content - Flame atomic absorption spectrometric method$114.00
92. GB/T 20931.10-2007Methods for chemical analysis of lithium - Determination of copper content - Flame atomic absorption spectrometric method$114.00
93. GB/T 20931.11-2007Methods for chemical analysis of lithium - Determination of magnesium content - Flame atomic absorption spectrometric method$114.00
94. GB/T 20931.12-2025Methods for the chemical analysis of lithium - Part 12: Determination of impurity element content - Inductively coupled plasma atomic emission spectrometry$260.00
95. GB/T 20931.2-2007Methods for chemical analysis of lithium - Determination of sodium content - Flame atomic absorption spectrometric method$110.00
96. GB/T 20931.3-2007Methods for chemical analysis of lithium - Determination of calcium content - Flame atomic absorption spectrometric method$114.00
97. GB/T 20931.4-2007Methods for chemical analysis of lithium - Determination of iron content - Orthopenanthroline spectrophotometric method$114.00
98. GB/T 20931.5-2007Methods for chemical analysis of lithium - Determination of silicon content - Molybdenum blue spectrophotometric method$114.00
99. GB/T 20931.6-2007Methods for chemical analysis of lithium - Determination of aluminum content - Chromazurol S-cetylpyridine broide spectrophotometric method$114.00
100. GB/T 20931.7-2007Methods for chemical analysis of lithium - Determination of nickel content - alpha-Furil dioxime spectrophotometric method$114.00
101. GB/T 20931.8-2007Methods for chemical analysis of lithium - Determination of chlorine content - Thiocyanate spectrophotometric method$114.00
102. GB/T 20931.9-2007Methods for chemical analysis of lithium - Determination of nitrogen content - Mercuric potassium iodide spectrophotometric method$130.00
103. GB/T 20933-2021Hot rolled sheet pile$215.00
104. GB/T 20934-2016Steel tie rod$285.00
105. GB/T 20935-2025Metal materials — Method of electromagnetic acoustic inspection$365.00
106. GB/T 20935.2-2018Metal materials -- Method of electromagnetic acoustic inspection -- Part 2: Standard practice for ultrasonic testing using electromagnetic acoustic transducer (EMAT) techniques$210.00
107. GB/T 20935.3-2018Metal materials -- Method of electromagnetic acoustic inspection -- Part 3: Standard practice for ultrasonic surface examinations using electromagnetic acoustic transducer (EMAT) techniques$210.00
108. GB/T 20936.1-2022Gas detectors for explosive atmospheres - Part 1: Performance requirements of detectors for flammable gases$545.00
109. GB/T 20936.2-2024Gas detectors for explosive atmospheres - Part 2: Selection, installation, use and maintenance of detectors for flammable gases and oxygen$1,085.00
110. GB/T 20936.3-2017Gas detectors for explosive atmospheres -- Part 3: Guidance on functional safety of fixed gas detection systems$525.00
111. GB/T 20936.4-2017Gas detectors for explosive atmospheres -- Part 4: Performance requirements of open path detectors for flammable gases$410.00
112. GB/T 20937-2018Potassium magnesium of sulphate fertilizer$150.00
113. GB/T 20938-2007Good manufacturing practice for canned food$260.00
114. GB/T 20940-2007Good manufacturing practice for meat products enterprises$140.00
115. GB/T 20942-2007Good manufacture practice for brewery enterprises$140.00
116. GB/T 20944.1-2007Textiles - Evaluation for antibacterial activity - Part 1: Agar diffusion plate method$80.00
117. GB/T 20944.2-2007Textiles - Evaluation for antibacterial activity - Part 2: Absorption method$90.00
118. GB/T 20944.3-2008Textiles - Evaluation for antibacterial activity - Part 3: Shake flask method$110.00
119. GB/T 20948-2007Rear-view mirrors requirements for agricultural and forestry tractors$125.00
120. GB/T 20948-2025Tractors for agriculture and forestry — Devices for indirect vision — Technical specification$500.00
121. GB/T 20956-2025Printing machinery - Safety technical specification for cutting equipment$470.00
122. GB/T 20957.1-2007Test conditions for precision machining centre -- Part 1: Geometric tests for machines with horizontal spindle and with accessory heads (horizontal Z axis)$725.00
123. GB/T 20957.2-2007Test conditions for machining centre -- Part 2: Geometric tests for machines with vertical spindle or universal heads with vertical primary rotary axis (vertical Z-axis)$545.00
124. GB/T 20957.4-2007Test conditions of precision machining centre -- Part 4: Accuracy and repeatability of positioning of linear and rotary axes$65.00
125. GB/T 20958.1-2007Test conditions for CNC bed-type milling machines - Testing of the accuracy - Part 1: Milling machines with horizontal spindle$350.00
126. GB/T 20958.2-2007Test conditions for CNC bed-type milling machines - Testing of the accuracy - Part 2: Milling machines with vertical spindle$425.00
127. GB/T 20959-2025NC vertical turret$365.00
128. GB/T 20960-2025NC horizontal turret$365.00
129. GB/T 20961-2018Single-rope drum mine hoists$180.00
130. GB/T 20964-2007Dust sampler$230.00
131. GB/T 20965-2025Control network HBES technical specification - Home and building control system$10,400.00
132. GB/T 20966-2007Determination of particle size distribution for colliery powders$110.00
133. GB/T 20967-2007Non-destructive testing -- Visual testing -- General principles$65.00
134. GB/T 20969.1-2021Special environmental condition—Machinery for plateau—Part 1: Requirements for internal combustion engines on plateau$155.00
135. GB/T 20969.2-2021Special environmental condition—Machinery for plateau—Part 2:Requirement for construction machinery on plateau$215.00
136. GB/T 20969.4-2021Special environmental condition—Machinery for plateau—Part 4:Guide rule of test for plateau natural environment—Internal combustion engines$155.00
137. GB/T 20969.5-2021Special environmental condition—Machinery for plateau—Part 5:Guide rule of test for plateau natural environment—Construction machinery$155.00
138. GB/T 20970-2015Petroleum and natural gas industries -- Downhole equipment -- Packers and bridge plugs$245.00
139. GB/T 20972.1-2026Petroleum and natural gas industries - Materials for use in H2S-containing environments in oil and gas production - Part 1: General principles for selection of cracking-resistant materials$230.00
140. GB/T 20972.2-2025Petroleum and natural gas industries - Materials for use in H2S-containing environments in oil and gas production - Part 2: Cracking-resistant carbon and low alloy steels, and the use of cast irons$710.00
141. GB/T 20972.3-2025Petroleum and natural gas industries - Materials for use in H2S-containing environments in oil and gas production - Part 3: Cracking-resistant CRAs(corrosion-resistant alloys) and other alloys$1,175.00
142. GB/T 20973-2020Bentonite$230.00
143. GB/T 20974-2025Rigid phenolic foam for thermal insulation (PF)$155.00
144. GB/T 20975.1-2018Methods for chemical analysis of aluminium and aluminium alloys—Part 1: Determination of mercury content$130.00
145. GB/T 20975.10-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 10: Determination of tin content$155.00
146. GB/T 20975.11-2018Methods for chemical analysis of aluminium and aluminium alloys—Part 11: Determination of lead content$130.00
147. GB/T 20975.12-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 12: Determination of titanium content$125.00
148. GB/T 20975.13-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 13: Determination of vanadium content$155.00
149. GB/T 20975.14-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 14: Determination of nickel content$215.00
150. GB/T 20975.15-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 15: Determination of boron content$155.00
151. GB/T 20975.16-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 16: Determination of magnesium content$200.00
152. GB/T 20975.17-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 17: Determination of strontium content$155.00
153. GB/T 20975.18-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 18:Determination of chromium content$215.00
154. GB/T 20975.19-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 19: Determination of zirconium content$155.00
155. GB/T 20975.2-2018Methods for chemical analysis of aluminium and aluminium alloys—Part2: Determination of arsenic content$130.00
156. GB/T 20975.20-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 20: Determination of gallium content—Butyrhodamine B spectrophotometric method$95.00
157. GB/T 20975.21-2020Methods for chemical analysis of aluminium and aluminium alloy—Part 21: Determination of calcium content$155.00
158. GB/T 20975.22-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 22:Determination of beryllium content$140.00
159. GB/T 20975.23-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 23:Determination of antimony content$110.00
160. GB/T 20975.24-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 24: Determination of total rare earth content$125.00
161. GB/T 20975.25-2020Methods for the chemical analysis of aluminium and aluminium alloys - Part 25: Determination of element contents - Inductively coupled plasma atomic emission spectrometry$215.00
162. GB/T 20975.26-2013Methods for chemical analysis of aluminium and aluminium alloys - Part 26: Determination of carbon content - Infrared absorption method$80.00
163. GB/T 20975.27-2018Methods for chemical analysis of aluminium and aluminium alloys—Part 27: Determination of cerium,lanthanum,scandium—Inductively coupled plasma atomic emission spectrometry method$110.00
164. GB/T 20975.28-2019Methods for chemical analysis of aluminium and aluminium alloys—Part 28:Determination of cobalt content—Flame atomic absorption spectrometry$70.00
165. GB/T 20975.29-2019Methods for chemical analysis of aluminium and aluminium alloys—Part 29:Determination of molybdenum content—Thiocyanate spectrophotometry$70.00
166. GB/T 20975.3-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 3: Determination of copper content$215.00
167. GB/T 20975.30-2019Methods for chemical analysis of aluminium and aluminium alloys—Part 30: Determination of hydrogen content—Heating extraction-thermal conductivity method$70.00
168. GB/T 20975.31-2019Methods for chemical analysis of aluminium and aluminium alloys—Part 31: Determination of phosphorus content—Molybdenum blue spectrophotometry$70.00
169. GB/T 20975.32-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 32: Determination of bismuth content$140.00
170. GB/T 20975.33-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 33: Determination of potassium content—Flame atomic absorption spectrometric method$95.00
171. GB/T 20975.34-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 34: Determination of sodium content—Flame atomic absorption spectrometric method$95.00
172. GB/T 20975.35-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 35:Determination of tungsten content—Thiocyanate spectrophotometric method$90.00
173. GB/T 20975.36-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 36:Determination of silver content—Flame atomic absorption spectrometry$90.00
174. GB/T 20975.37-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 37:Determination of niobium content$155.00
175. GB/T 20975.4-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 4:Determination of iron content$155.00
176. GB/T 20975.5-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 5: Determination of silicon content$155.00
177. GB/T 20975.6-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 6: Determination of cadmium content$155.00
178. GB/T 20975.7-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 7:Determination of manganese content$155.00
179. GB/T 20975.8-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 8: Determination of zinc content$155.00
180. GB/T 20975.9-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 9:Determination of lithium content—Flame atomic absorption spectrometry$110.00
181. GB/T 20976-2023Quality requirement for soft-serve ice cream premix powder$150.00
182. GB/T 20977-2007[Including 2017XG1] General technical requirement for the pastry$105.00
183. GB/T 20977-2024General quality for pastry$170.00
184. GB/T 20978-2021Quality requirement for soft ice cream serving-machine$245.00
185. GB/T 20979-2019Information security technology—Technical requirements for iris recognition system$300.00
186. GB/T 20980-2021General quality requirements for biscuits$215.00
187. GB/T 20981-2021General quality requirements for bread$145.00
188. GB/T 20984-2022Information security technology—Risk assessment method for information security$455.00
189. GB/T 20985.1-2026Cybersecurity technology - Cybersecurity incident management - Part 1: Principles and process$410.00
190. GB/T 20985.2-2026Cybersecurity technology - Cybersecurity incident management - Part 2: Guidelines to plan and prepare for incident response$755.00
191. GB/T 20986-2023Information security technology—Guidelines for category and classification of cybersecurity incidents$425.00
192. GB/T 20988-2007Information security technology - Disaster recovery specifications for information systems$125.00
193. GB/T 20989-2017Determination of power losses in high-voltage direct current (HVDC) converter stations$345.00
194. GB/T 20990.1-2020Thyristor valves for high voltage direct current (HVDC) power transmission - Part 1: Electrical testing$605.00
195. GB/T 20991-2024Foot protection - Test methods for footwear$1,430.00
196. GB/T 20992-2007General requirements for thyristors for HVDC transmission$200.00
197. GB/T 20993-2012DC filter capacitors and neutral bus surge capacitors for HVDC transmission system$380.00
198. GB/T 20994-2007Shunt capacitors and AC filter capacitors for HVDC transmission systems$380.00
199. GB/T 20995-2020Static var compensators(SVC). Testing of thyristor valves$545.00
200. GB/T 20996.1-2020Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 1: Steady-state conditions$980.00
201. GB/T 20996.2-2020Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 2: Faults and switching$620.00
202. GB/T 20996.3-2020Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 3: Dynamic conditions$485.00
203. GB/T 20999-2017Data communication protocol between traffic signal controller and control center$500.00
204. GB/T 21001.1-2026Refrigerated display cabinets - Part 1: Vocabulary$545.00
205. GB/T 21001.2-2015Refrigerated display cabinets -- Part 2: Classification, requirements and test conditions$155.00
206. GB/T 21001.3-2026Refrigerated display cabinets - Part 3: Test rating$365.00
207. GB/T 21001.4-2024Refrigerated display cabinets - Part 4: Classification, requirements and test conditions of ice-cream freezers$575.00
208. GB/T 21002-2007Product of geographical indication - Zhongmou garlic$170.00
209. GB/T 21003-2007Product of geographical indication - Lushan Yunwu Tea$110.00
210. GB/T 21004-2007Product of geographical indication - Taihe silk chicken$110.00
211. GB/T 21005-2007UV erythema reference action spectrum, standard erythema dose and UV index$185.00
212. GB/T 21006-2007Surface chemical analysis -- X-ray photoelectron and Auger electron spectrometers -- Linearity of intensity scale$195.00
213. GB/T 21008-2023Aerial ropeways for underground mines - Safety requirements$145.00
214. GB/T 21010-2017Current land use classification$210.00
215. GB/T 21012-2007Precision machining centers - Specifications$200.00
216. GB/T 21013-2025Machine tool - Hub flangs for plain grinding wheels$350.00
217. GB/T 21015-2023Technical specifications for paddy drying$155.00
218. GB/T 21016-2023Technical specifications for wheat drying$155.00
219. GB/T 21017-2021Technical specifications for maize drying$160.00
220. GB/T 21021.1-2021Intermodulation level measurement for passive RF and microwave devices - Part 1: General requirements and measuring methods$215.00
221. GB/T 21021.2-2021Intermodulation level measurement for passive RF and microwave devices - Part 2: Measurement of passive intermodulation in coaxial cable assemblies$95.00
222. GB/T 21021.3-2021Intermodulation level measurement for passive RF and microwave devices - Part 3: Measurement of passive intermodulation in coaxial connectors$95.00
223. GB/T 21021.4-2021Intermodulation level measurement for passive RF and microwave devices - Part 4: Measurement of passive intermodulation in coaxial cables$140.00
224. GB/T 21024-2007General specification of Chinese speech synthesis system$470.00
225. GB/T 21026-2007Specification for Chinese office software application programming interface$1,760.00
226. GB/T 21028-2007Information security technology -- Security techniques requirement for server$355.00
227. GB/T 21029-2007The series and type spectrum of geotechnical engineering instrument$480.00
228. GB/T 21031-2007Acceptance code of practice for water-saving irrigation equipment on the site$140.00
229. GB/T 21032-2026Polyamide monofilament$230.00
230. GB/T 21033-2025Determination of immunoglobulin IgG in feeds - High performance liquid chromatography$155.00
231. GB/T 21034-2007Feed additive -- Calcium salt of hydroxyl analogue of methionine$174.00
232. GB/T 21035-2025Feed safety assessment — Teratogenicity test$230.00
233. GB/T 21036-2007Determination of dopamine hydrochloride in feeds - High performance liquid chromatography$90.00
234. GB/T 21037-2024Determination of diaveridine, trimethoprim and ormetoprim in feeds$245.00
235. GB/T 21043-2007Instrument for soil test - Strain-controlled unconfined compression apparatus$150.00
236. GB/T 21044-2024Chinese soft-shelled turtle$305.00
237. GB/T 21046-2024Neopyropia yezoensis$180.00
238. GB/T 21047-2026Red drum$170.00
239. GB/T 21048-2007Cinematography Star-rating standard for cinemas$290.00
240. GB/T 21049-2022Han Xin code$1,940.00
241. GB/T 21050-2019Information security technology—Security requirements for network switch$740.00
242. GB/T 21052-2007Information security technology - Physical security technical requirement for information system$560.00
243. GB/T 21053-2023Information security techniques - Public key infrastructure - Security technology requirement for PKI system$350.00
244. GB/T 21055-2007Assistive devices of car manipulation for persons with physical disabilities$140.00
245. GB/T 21056-2007Specification for adjustable speed drive systems of electricity conservation with VF for fans and pumps$110.00
246. GB/T 21057-2007Inorganic chemical for industrial use - General method for determination of fluorine content-Ion selective electrode method$170.00
247. GB/T 21058-2007Inorganic chemical for industrial use - General method for mercury content-Flameless atomic absorption spectrometric method$140.00
248. GB/T 21061-2007The specification of electronic government network technology and using management$260.00
249. GB/T 21062.1-2007Government information resource interchange system - Part 1: Framework$90.00
250. GB/T 21062.2-2007Government information resource interchange system - Part 2: Technical requirements$710.00
251. GB/T 21062.3-2007Government information resource exchange system - Part 3: Data interface specification$440.00
252. GB/T 21062.4-2007Government information resource interchange system - Part 4: Technical management requirements$110.00
253. GB/T 21063.1-2007Government information resource catalog system - Part 1: Framework$110.00
254. GB/T 21063.2-2007Government information resource catalog system - Part 2: Technical requirement$830.00
255. GB/T 21063.3-2007Government information resource catalog system - Part 3: Core metadata$290.00
256. GB/T 21063.4-2007Government information resource catalog system - Part 4: Government information resource classification$120.00
257. GB/T 21063.6-2007Government information resource catalog system - Part 6: Technical management requirements$110.00
258. GB/T 21064-2007System general design requirements for electronic government$380.00
259. GB/T 21065-2007Electrical installation in ships -- Installation and test of completed installation$335.00
260. GB/T 21067-2025Electrical equipment of industrial machines - Electromagnetic compatibility - General requirements for immunity$245.00
261. GB/T 21071-2021Quality requirement of warehousing service$155.00
262. GB/T 21072-2021Grades for general warehouse$155.00
263. GB/T 21074-2007Cold rolled stainless precision steel strip for needle tubing$110.00
264. GB/T 21075-2026Reservoir-induced earthquake hazard assessment$305.00
265. GB/T 21078.1-2023Financial services - Personal Identification Number(PIN) management and security - Part 1: Basic principles and requirements for PINs in card-based systems$620.00
266. GB/T 21078.4-2023Financial services - Personal Identification Number (PIN) management and security - Part 4: Approved algorithms for PIN encipherment$100.00
267. GB/T 21079.1-2022Financial services - Secure cryptographic devices(retail) - Part 1: Concepts, requirements and evaluation methods$410.00
268. GB/T 21082.4-2007Banking -- Key management (retail) -- Part 4: Key management techniques using public key cryptography$275.00
269. GB/T 21082.5-2007Banking -- Key management (retail) -- Part 5: Key lift cycle for public key cryptosystems$734.00
270. GB/T 21084-2007Green hotels$290.00
271. GB/T 21085-2020Qualified certificate of vehicle$340.00
272. GB/T 21086-2007Curtain wall for building$270.00
273. GB/T 21087-2020Energy recovery ventilators for outdoor air handling$620.00
274. GB/T 21088-2007Classification and definition of the waterborne additives for architectural coatings$110.00
275. GB/T 21089.1-2007Testing method of application performance of waterborne additives for architectural coatings - part 1: Dispersing agent,Defoaming agent, Thickening agent$260.00
276. GB/T 21090-2007Emulsion paint tinting base$110.00
277. GB/T 21091-2026Self-ballasted electrodeless fluorescent lamps for general lighting services - Performance specifications$260.00
278. GB/T 21092-2013Miscellaneous lamps$425.00
279. GB/T 21093-2007High-pressure mercury vapour lamps -- Performance specifications$515.00
280. GB/T 21097-2025General rules on safe service life and recycling for household and similar electrical appliances$190.00
281. GB/T 21098-2022Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 4: Guidelines and general information$620.00
282. GB/T 21099.1-2007Function blocks for process control -- Part 1: Overview of system aspects$1,305.00
283. GB/T 21099.2-2024Devices and integration in enterprise systems - Function blocks(FB) for process control and electronic device description language(EDDL) - Part 2: Specification of FB concept$1,040.00
284. GB/T 21099.3-2024Devices and integration in enterprise systems - Function blocks(FB) for process control and electronic device description language (EDDL) - Part 3: EDDL syntax and semantics$6,935.00
285. GB/T 21099.4-2024Devices and integration in enterprise systems - Function blocks(FB) for process control and electronic device description language(EDDL) - Part 4: EDD interpretation$1,955.00
286. GB/T 21099.5-2024Devices and integration in enterprise systems - Function blocks(FB) for process control and electronic device description language(EDDL) - Part 5: EDDL Built-in library$4,100.00
287. GB/T 21100-2007Identification of camelidae derived material in animal - originated feedstuff PCR method$110.00
288. GB/T 21101-2025Determination of porcine-derived material in feeds$185.00
289. GB/T 21102-2007Identification of rabbit derived materials in feedstuffs real time PCR method$110.00
290. GB/T 21103-2007Identification of mammal derived materials in feedstuffs real time PCR method$170.00
291. GB/T 21105-2007Identification of canis derived material in feedstuff PCR method$110.00
292. GB/T 21106-2007Identification of cervus derived material in animal - originated feedstuff PCR method$110.00
293. GB/T 21107-2025Determination of horse and donkey-derived materials in feeds$245.00
294. GB/T 21108-2025Determination of chloramphenicol, thiamphenicol and florfenicol in feeds — High performance liquid chromatography-tandem mass spectrometry$125.00
295. GB/T 21109.1-2022Functional safety of safety instrumented systems in the process industry sector - Part 1: Framework, definitions, system, hardware and application programming requirements$920.00
296. GB/T 21109.3-2026Functional safety of safety instrumented systems in the process industry sector - Part 3: Guidance for the determination of the required safety integrity levels$1,295.00
297. GB/T 21114-2007Chemical analysis of refractory products by XRF -- Fused cast bead method$335.00
298. GB/T 21114-2019Refractories—Chemical analysis by X-ray fluorescence(XRF)—Fused cast-bead method$1,030.00
299. GB/T 21115-2007Measurement of the levitation force of bulk oxide superconductors$110.00
300. GB/T 21116-2007Hydraulic vibration generator systems$230.00
301. GB/T 21117-2007Magnetostrictive liquid level meter$110.00
302. GB/T 21118-2026Mantou made of wheat flour$200.00
303. GB/T 21119-2026Inspection of grain and oils - Determination of the sedimentation index of wheat - Zeleny test$245.00
304. GB/T 21120-2018Synthetic fibres for cement cement concrete and mortar$420.00
305. GB/T 21121-2007Animal and vegetable fats and oils -- Determination of oxidation stability (accelerated oxidation test)$250.00
306. GB/T 21121-2024Animal and vegetable fats and oils - Determination of oxidative stability(accelerated oxidation test)$250.00
307. GB/T 21122-2025Fortified wheat flour$185.00
308. GB/T 21123-2025Nutrition fortification - Edible oil and fat fortified with vitamin A$95.00
309. GB/T 21124-2026Determination of black point kernels in wheat$125.00
310. GB/T 21125-2026Technical specification for the breeding of edible mushroom varieties$155.00
311. GB/T 21126-2026Determination of sodium formaldehyde sulfoxylate in wheat flour, rice flour and their products$200.00
312. GB/T 21127-2007Technical specification of identification and evaluation for drought resistance in wheat$140.00
313. GB/T 21128-2007Structural bamboo & wood composite board$140.00
314. GB/T 21129-2007Decorative bamboo veneered panel$140.00
315. GB/T 21130-2007Cigarettes Determination of Benzo[a]pyrene in Total Particulate Matter$90.00
316. GB/T 21133-2007Environmental tobacco smoke -- Estimation of its contribution to respirable suspended particles -- Method based on solanesol$534.00
317. GB/T 21138-2019Tobacco seeds$210.00
318. GB/T 21140-2017Non-structural finger jointed lumber$190.00
319. GB/T 21141-2007Technical regulations for sandification prevention and control$440.00
320. GB/T 21142-2007Product of geographical indication - Taixing Ginkgo Nut$230.00
321. GB/T 21143-2025Metallic materials - Unified method of test for determination of quasistatic fracture toughness$1,550.00
322. GB/T 21144-2023Solid concrete brick$190.00
323. GB/T 21145-2023Mechanical transport refrigeration units$365.00
324. GB/T 21149-2019Fired roofing tiles$240.00
325. GB/T 21150-2007stall regulation wind turbine generator system$260.00
326. GB/T 21151-2025Main axial fans for coal mines - Technical specification$305.00
327. GB/T 21152-2018Earth-moving machinery -- Wheeled or high-speed rubber-tracked machines -- Performance requirements and test procedures for brake systems$360.00
328. GB/T 21156.1-2007Special environmental condition - Machinery for desert - Part 1: Internal combustion engines on dry heat-desert condition$210.00
329. GB/T 21156.2-2007Special environmental condition - Machinery for desert - Part 2: Construction machinery on dry heat-desert condition$150.00
330. GB/T 21158-2025Seed processing complete equipment$305.00
331. GB/T 21162-2007Conversion rule for specific heat consumption and throughput of concurrent - Flow grain dryer$2,480.00
332. GB/T 21163.2-2007Agricultural grain driers -- Determination of drying performance -- Part 2: Additional procedures and crop-specific requirements$1,235.00
333. GB/T 21164-2007Determination of streptomycin, dihydrostreptomycin residues in royal jelly --- liquid chromatography method$110.00
334. GB/T 21165-2007Determination of chloramphenicol residues in casing - LC-MS/MS method$110.00
335. GB/T 21166-2007Determination of nitrofuran metabolites residues in casing - LC-MS-MS method$110.00
336. GB/T 21167-2007Determination of nitrofuran metabolites residues in royal jelly - LC-MS-MS method$170.00
337. GB/T 21168-2007Determination of tylosin residues in honey - LC-MS/MS method$170.00
338. GB/T 21169-2007Determination of amitraz and metabolite residues in honey - liquid chromatography$110.00
339. GB/T 21171-2018Technical terms of fragrances and flavors$130.00
340. GB/T 21172-2022Sensory analysis - Guidelines for sensory assessment of the colour of products$245.00
341. GB/T 21173-2007Determination of sulfa drugs residues in animal derived food - Radio-receptor assay method$110.00
342. GB/T 21174-2007Determination of beta-Lactams residues in animal derived food - Radio-receptor assay method$110.00
343. GB/T 21179-2026Recycled nickel and nickel alloy raw materials$200.00
344. GB/T 21180-2007Scraps of tin and tin alloy$110.00
345. GB/T 21181-2017Secondarily lead and lead alloy ingots$100.00
346. GB/T 21181-2025Secondary lead ingots$120.00
347. GB/T 21182-2022Scraps of cemented carbide$155.00
348. GB/T 21183-2017Zirconium and zirconium alloy sheet, strip and foil$130.00
349. GB/T 21185-2007Information technology -- Office machines -- Method of specifying image reproduction of colour copying machines by analog test charts -- Realisation and application$665.00
350. GB/T 21186-2007Fourier transform infrared spectrometer$130.00
351. GB/T 21186-2026Fourier transform infrared spectrometers$365.00
352. GB/T 21187-2026Atomic absorption spectrophotometers$320.00
353. GB/T 21190-2007Paper, board and corrugated fibre board -- Description and calibration of compression-testing equipment$95.00
354. GB/T 21191-2007Atomic fluorescence spectrometer$260.00
355. GB/T 21194-2007Generic reliability assurance requirements for optoelectronic devices used in telecommunications equipment$210.00
356. GB/T 21195-2007The specifications of antenna for mobile communication indoor distributed system$210.00
357. GB/T 21196.2-2007Textiles - Determination of the abrasion resistance of fabrics by the Martindale method - Part 2: Determination of specimen breakdown$80.00
358. GB/T 21199-2024Dry developer for laser printers$280.00
359. GB/T 21200-2024Toner used in dry dual-component developer for laser printers$280.00
360. GB/T 21202-2018Digital multi-function monochrome electrostatic copying(printing) devices$300.00
361. GB/T 21203-2018Information technology -- Office equipment -- Method for measuring digital copying productivity$480.00
362. GB/T 21205-2022Rotating electrical machines - Repair, overhaul and reclamation$620.00
363. GB/T 21207-2007Low-voltage switchgear and controlgear -- Device profiles for networked industrial devices -- Part 1: General rules for development of device profiles$1,409.00
364. GB/T 21207.1-2014Low-voltage switchgear and controlgear -- Device profiles for networked industrial devices -- Part 1: General rules for development of device profiles$905.00
365. GB/T 21208-2007Low-voltage switchgear and controlgear -- Controllers for drivers of stationary fire pumps$575.00
366. GB/T 21209-2025AC electrical machines used in power drive systems - Application guide$1,250.00
367. GB/T 21218-2023Unused silicone insulating liquids for electrotechnical purposes$200.00
368. GB/T 21219-2023Magnetic materials - Classification$560.00
369. GB/T 21220-2024Soft magnetic metallic materials$350.00
370. GB/T 21221-2022Insulating liquids - Specifications for unused liquids based on synthetic aromatic hydrocarbons$230.00
371. GB/T 21223-2007Guide for the statistical analysis of ageing test data -- Part 1: Methods based on mean values of normally distributed test results$589.00
372. GB/T 21223.1-2015Guide for the statistical analysis of ageing test data -- Part 1: Methods based on mean values of normally distributed test results$405.00
373. GB/T 21223.2-2015Guide for the statistical analysis of ageing test data -- Part 2: Validation of procedures for statistical analysis of censored normally distributed data$585.00
374. GB/T 21225-2007Emergency power supply with inverter$440.00
375. GB/T 21227-2021AC loss measurements - Magnetometer methods for hysteresis loss in superconducting multifilamentary composites$305.00
376. GB/T 21228.1-2007Acoustics -- Sound-scattering properties of surfaces -- Part 1: Measurement of the random-incidence scattering coefficient in a reverberation room$165.00
377. GB/T 21231.1-2018Acoustics -- Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices -- Part 1: Airborne noise measurement$570.00
378. GB/T 21231.2-2018Acoustics -- Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices -- Part 2: Structure-borne vibration measurements$390.00
379. GB/T 21236-2007Silica fume from electric-furnace$70.00
380. GB/T 21236-2026Silica fume recovered from electric furnaces$200.00
381. GB/T 21237-2026Wide and heavy plate for oil and natural gas line pipe$605.00
382. GB/T 21238-2016Glass fiber reinforced plastics mortar pipes$645.00
383. GB/T 21239-2022Test method for compression after impact properties of fiber reinforced plastic laminates$260.00
384. GB/T 21242-2019Fireworks—Test methods of qualitative determination of prohibitive and limitative substances$155.00
385. GB/T 21243-2007Assignation of harzard classification of fireworks and firecrackers$140.00
386. GB/T 21244-2007Paper cores$65.00
387. GB/T 21246-2020Measurement method for cathodic protection parameters of buried steel pipelines$425.00
388. GB/T 21247-2007Specifications for identification system of spilled oil on the sea$500.00
389. GB/T 21254-2017Breath alcohol analyzer$360.00
390. GB/T 21255-2019Motor vehicle speed detector$490.00
391. GB/T 21261-2007Product of geographical indication - Yuquan liquor$110.00
392. GB/T 21262-2007Product of geographical indication - Yongchun Mie Xiang$230.00
393. GB/T 21263-2007Product of geographical indication - Niulanshan erguotou Liquor$170.00
394. GB/T 21264-2007Cottonseed meal (solvent) for feedstuffs$100.00
395. GB/T 21266-2007Determination of total capsaicinoid content and representation of pungency degree in capsicum and its products$140.00
396. GB/T 21268-2014General technical conditions for garden patrol minibus$130.00
397. GB/T 21269-2018Cold chamber die casting machines$235.00
398. GB/T 21269-2023Cold chamber die casting machines$365.00
399. GB/T 21270-2025General quality for food filling$200.00
400. GB/T 21271-2026Vacuum technology - Noise measurement for vacuum pumps$560.00
401. GB/T 21273-2007Environmentally conscious design -- Integrating environmental aspects into design and development of electrotechnical products$734.00
402. GB/T 21278-2007Refrigerators for conserved blood$200.00
403. GB/T 21282-2007Rubber/Plastics weatherstrip for automobile$110.00
404. GB/T 21283.1-2007Rotary shaft lip-type seals incorporating thermoplastic sealing elements -- Part 1: Nominal dimensions and tolerances$215.00
405. GB/T 21283.4-2008Rotary shaft lip-type seals incorporating thermoplastic sealing elements -- Part 4: Performance test procedures$195.00
406. GB/T 21283.6-2015Rotary shaft lip-type seals incorporating thermoplastic sealing elements—Part 6: Properties requirements for the thermoplastic and elastic material$90.00
407. GB/T 21284-2015Footwear -- Test methods for whole shoe -- Thermal insulation$60.00
408. GB/T 21286-2007Repair of pneumatic tyres$230.00
409. GB/T 21287-2021Electronic specialty gas—Nitrogen trifluoride$190.00
410. GB/T 21289-2007Frozen roasted eel$170.00
411. GB/T 21290-2025Frozen tilapia fillets$200.00
412. GB/T 21291-2026General technical specification for aquatic product primary processing machinery$170.00
413. GB/T 21294-2024Testing Methods of Physical and Chemical Performance of Garments$210.00
414. GB/T 21295-2024Technical requirements for the physical and chemical performance of garments$500.00
415. GB/T 21296.1-2020Automatic instruments for weighing road vehicles in motion - Part 1: General technical specification$920.00
416. GB/T 21296.2-2020Automatic instruments for weighing road vehicles in motion—Part 2: Weighing whole loads$230.00
417. GB/T 21296.3-2020Automatic instruments for weighing road vehicles in motion—Part 3: Weighing axle loads$305.00
418. GB/T 21296.4-2020Automatic instruments for weighing road vehicles in motion-Part 4: Bending plate type$245.00
419. GB/T 21296.5-2020Automatic instruments for weighing road vehicles in motion—Part 5: Crystal quartz type$425.00
420. GB/T 21296.6-2022Automatic instruments for weighing road vehicles in motion - Part 6: Plate modular$290.00
421. GB/T 21301-2007Inkjet printing paper$170.00
422. GB/T 21302-2007General rules of laminated films & pouches for packaging$326.00
423. GB/T 21302-2026General rules for plastic laminated films and pouches for packaging$290.00
424. GB/T 21303-2017Specifications for water measurement of irrigation canal system$1,160.00
425. GB/T 21304-2026Determination of wheat hardness - Hardness index method$200.00
426. GB/T 21306-2007saw delinter$230.00
427. GB/T 21307-2025Roller gin$245.00
428. GB/T 21308-2007Lint cleaners$230.00
429. GB/T 21309-2025Inspection of grain and oils — Determination of oils and liquid paraffin spread on rice$170.00
430. GB/T 21310-2007Determination of residues of thyreostats in foodstuffs of animal origin - HPLC-MS/MS method$230.00
431. GB/T 21311-2007Determination of residues of nitrofuran metabolites in foodstuffs of animal origin HPLC-MS/MS method$50.00
432. GB/T 21312-2007Analysis of fourteen quinolones in food of animal origin by high performance liquid chromatography tandem mass spectrometry$350.00
433. GB/T 21314-2007Determination of cephapirin and ceftiofur residues in foodstuffs animal origin - LC-MS/MS method$170.00
434. GB/T 21315-2007Determination of penicillins residues in foodstuffs animal origin - LC-MS/MS method$130.00
435. GB/T 21316-2007Determination of residues of sulfonamides in foodstuffs of animal origin - LC-MS/MS$350.00
436. GB/T 21317-2007Determination of tetracyclines residues in food of animal origin - LC-MS/MS method and HPLC method$290.00
437. GB/T 21318-2007Determination of nitroimidazoles residues in foodstuffs of animal origin$230.00
438. GB/T 21319-2007Method for the determination of avermectins residues in food of animal origin food - Enzyme linked immunosorbent assay$110.00
439. GB/T 21320-2007Method for determination of avermectins residues in animal origin food - LC-MS-MS$170.00
440. GB/T 21321-2007Method for determination of avermectins residue in animal origin food - Immunoaffinity -high performance liquid chromatograph$110.00
441. GB/T 21322-2007Determination of 3-methyl-quinoxaline-2-carboxylic acid residues in animal origin food - High performance liquid chromatography method$170.00
442. GB/T 21323-2007Determination of aminoglycosides residues in animal tissues - HPLC-MS/MS method$110.00
443. GB/T 21324-2007Method for the determination of benzimidazoles residues in edible animal muscle and liver$350.00
444. GB/T 21325-2007Jian carp$170.00
445. GB/T 21326-2026Black sea bream - Broodstock, fry and fingerlings$185.00
446. GB/T 21327-2019Evaporator of water surface$240.00
447. GB/T 21328-2024Fibre ropes - General specifications$470.00
448. GB/T 21329-2007Method for the determination of Gentamicin residues in Animal Original food - Enzyme-linked immunosorbent assay$170.00
449. GB/T 21330-2007Method for the determination of Streptomycin residues in Aminal Original food - Enzyme-linked Immunosorbent assay$170.00
450. GB/T 21331-2021Fluff pulp$155.00
451. GB/T 21334-2017Classification and planning fundamental requirements of logistics park$90.00
452. GB/T 21335-2008Reduced Space Symbology(RSS) bar code$680.00
453. GB/T 21336-2008Geographic information - Data quality - Part 1: General requirements$1,964.00
454. GB/T 21336.1-2023Geographic information - Data quality - Part 1: General requirements$1,250.00
455. GB/T 21339-2020The statistical and analytical methods for energy consumption in harbor industry$190.00
456. GB/T 21352-2022Flame retardant steel cord conveyor belts used in underground mines$245.00
457. GB/T 21353-2008Test method for determining the resistance of paint film to algae$30.00
458. GB/T 21354-2008Powders -- Determination of tap density$45.00
459. GB/T 21355-2022Non-destructive testing - Industrial computed radiography with storage phosphor imaging plates - Classification of systems$335.00
460. GB/T 21358-2008Specifications for aviation jet fuel filter/separators$285.00
461. GB/T 21360-2018Refrigerant compressor for automobile air conditioning$130.00
462. GB/T 21361-2017Motor vehicle air-conditioning unit$140.00
463. GB/T 21362-2008Heat pump water heater for commercial and industrial and similar application$125.00
464. GB/T 21362-2023Heat pump water heater for commercial & industrial and similar application$485.00
465. GB/T 21363-2018Positive displacement refrigerant compressor condensing unit$360.00
466. GB/T 21364-2008Information technology - Learning, education and training - Rule-based XML binding techniques$240.00
467. GB/T 21365-2008Information technology - Learning, education and training - Learning object metadata$380.00
468. GB/T 21367-2008Specification for equipping and managing of the measuring instrument of energy in chemical enterprise$110.00
469. GB/T 21368-2008Specification for equipping and managing of measuring instrument of energy in the iron and steel industry$154.00
470. GB/T 21369-2024Specification for equipping and managing of measuring instrument of energy in fossil power plants$260.00
471. GB/T 21371-2019By-product gypsum used in cement$80.00
472. GB/T 21372-2024Portland cement clinker$200.00
473. GB/T 21374-2008Intellectual property documentation and information - Essential vocabulary$300.00
474. GB/T 21376-2008Provisions on exhaust of bulk cement clinker in waterway transportation$114.00
475. GB/T 21379-2025Classification and coding of traffic management information attributes - Urban roads$425.00
476. GB/T 21384-2016Electric water-heater safety valve$70.00
477. GB/T 21385-2025Metal-seated ball valves$245.00
478. GB/T 21386-2008Ratio pressure reducing$140.00
479. GB/T 21387-2025Axial flow check valves for water supply systems$305.00
480. GB/T 21388-2008Vernier, dial and digital display depth callipers$170.00
481. GB/T 21389-2008Vernier, dial and digital display calipers$260.00
482. GB/T 21390-2008Vernier, dial and digital display height callipers$170.00
483. GB/T 21391-2008Measurement of natural gas flow by turbine meter$120.00
484. GB/T 21391-2022Measurement of natural gas flow by turbine gas meters$455.00
485. GB/T 21394-2008Road traffic information service -Information classifying and coding$94.00
486. GB/T 21395-2008Dimethyl sulfoxide$115.00
487. GB/T 21395-2024Dimethyl sulfoxide$260.00
488. GB/T 21396-2022Footwear - Test methods for whole shoe - Upper sole adhesion$140.00
489. GB/T 21397-2023Cotton harvesters$395.00
490. GB/T 21399-2008Evaluating rule of automatic control system for grain driers$120.00
491. GB/T 21404-2022Internal combustion engines - Determination and method for the measurement of engine power - General requirements$605.00
492. GB/T 21405-2008Reciprocating internal combustion engines -- Determination and method for the measurement of engine power -- Additional requirements for exhaust emission tests in accordance with ISO 8178$75.00
493. GB/T 21406-2008Internal combustion engines -- Engine weight (mass) declaration$55.00
494. GB/T 21407-2015Doubly fed variable speed constant frequency wind turbine$360.00
495. GB/T 21410-2015Petroleum and neutral gas industries -- Downhole equipment -- Lock mandrels and landing nipples$345.00
496. GB/T 21411.1-2014Downhole equipment for petroleum and natural gas industries -- Progressing cavity pump systems for artificial lift -- Part 1: Pumps$1,245.00
497. GB/T 21412.1-2010Petroleum and natural gas industries -- Design and operation of subsea production systems -- Part 1: General requirements and recommendations$2,285.00
498. GB/T 21412.10-2019Petroleum and natural gas industries -- Design and operation of subsea production systems -- Part 10: Specification for bonded flexible pipe$690.00
499. GB/T 21412.11-2019Petroleum and natural gas industries—Design and operation of subsea production systems—Part 11:Recommended practice for flexible pipe$3,030.00
500. GB/T 21412.15-2017Petroleum and natural gas industries -- Design and operation of subsea production systems -- Part 15: Subsea structures and manifolds$665.00