GB/T standards: GB/T 20081.3-2021 to GB/T 21203-2018

500 standards in English, in code order.

1. GB/T 20081.3-2021Pneumatic fluid power - Compressed air pressure regulators and filter-regulators - Part 3: Alternative test methods for measuring the flow-rate characteristics of pressure regulators$665.00
2. GB/T 20090.11-2015Information technology—Advanced coding of audio and video—Part 11: Synchronous text$240.00
3. GB/T 20090.13-2017Information technology—Advanced coding of audio and video—Part 13: Video tool library$800.00
4. GB/T 20091-2021Classification for organizations$155.00
5. GB/T 20092.1-2022Chinese news information content—Part 1: Concept model$215.00
6. GB/T 20092.2-2022Chinese news information content—Part 2: News metadata$1,160.00
7. GB/T 20092.3-2022Chinese news information content—Part 3: XML format for data exchange$6,380.00
8. GB/T 20093-2022Classification and codes of Chinese news information$6,680.00
9. GB/T 20096-2021Roller skate$290.00
10. GB/T 20105-2026Coated fabrics for air ducts$365.00
11. GB/T 20108-2017Low temperature unitary air conditioner$240.00
12. GB/T 20109-2025Fresh air dehumidifiers$360.00
13. GB/T 20111.5-2020Electrical insulation systems--Procedures for thermal evaluation - Part 5: Applications with a designed life of 5 000 h or less$155.00
14. GB/T 20111.6-2022Electrical insulation systems - Procedures for thermal evaluation - Part 6: Multifactor evaluation with increased factors during diagnostic testing$245.00
15. GB/T 20114-2019Specific test methods for d.c. machines on conventional and rectifier-fed supplies$240.00
16. GB/T 20115.1-2021Basic specifications for industrial fuel fired installations—Part 1: General$245.00
17. GB/T 20118-2025General technical requirements for steel wire ropes$1,115.00
18. GB/T 20119-2023Steel wire ropes for balance$690.00
19. GB/T 20127.3-2026Steel and alloys - Determination of trace element contents - Part 3: Determination of scandium and barium by inductively coupled plasma atomic emission spectrometry$305.00
20. GB/T 20130-2025Self-shielding electron beam facility for radiation processing$305.00
21. GB/T 20132-2019Ships and marine technology - Low-location lighting (LLL) on passenger ships - Arrangement$420.00
22. GB/T 20134-2025Road traffic information collection - Incident message sets$305.00
23. GB/T 20136-2025General methods of test for electric power plants with internal combustion engines$1,685.00
24. GB/T 20138-2023Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code)$155.00
25. GB/T 20141-2018Formed wire concentric lay overhead electrical stranded conductors$540.00
26. GB/T 20150-2023Erythema reference action spectrum and standard erythema dose$155.00
27. GB/T 20155-2018Determination of mercury, cadmium and lead in battery$240.00
28. GB/T 20155-2026Determination of mercury, cadmium and lead in batteries$245.00
29. GB/T 20165-2025Rare earth polishing powder$305.00
30. GB/T 20168-2017Rapidly-quenched neodymium iron boron permanent magnetic powder$210.00
31. GB/T 20170.1-2026Test methods for the physical properties of rare earth metals and their compounds - Part 1: Determination of the particle size distribution of rare earth compounds - Laser diffraction method$155.00
32. GB/T 20170.2-2026Test methods for the physical properties of rare earth metals and their compounds - Part 2: Determination of the specific surface area of rare earth compounds - Nitrogen adsorption method$155.00
33. GB/T 20174-2019Petroleum drilling and production equipment—Drill-through equipment$1,620.00
34. GB/T 20178-2022Earth-moving machinery - Machine safety labels - General principles$980.00
35. GB/T 20184-2021Raman fiber amplifier$455.00
36. GB/T 20186.2-2021Secondary coating materials used for optical fibre—Part 2: Modified propylene resin$215.00
37. GB/T 20186.3-2023Secondary coating materials used for optical fibre—Part 3: Modified polycarbonate$260.00
38. GB/T 20188-2026Inspection of grain and oils - Determination of bromate in wheat flour and its products - Ion chromatography$185.00
39. GB/T 20189-2025Determination of beta-receptor agonists in feeds — Liquid chromatography-tandem mass spectrometry$260.00
40. GB/T 20190-2025Determination of bovine, ovine and goat-derived materials in feeds$320.00
41. GB/T 20191-2025Microbiological examination of Lactobacillus acidophilus in feeds$215.00
42. GB/T 20193-2025Feed material - Bone meal, meat and bone meal$245.00
43. GB/T 20194-2018Determination of starch in feeds -- Polarimetry$190.00
44. GB/T 20200-2022Sodium alpha-olefin sulfonate$110.00
45. GB/T 20202-2019Ethylene-vinyl acetate copolymer (EVA) blown covering film for agriculture$210.00
46. GB/T 20203-2017Technical specification for irrigation projects with pipe conveyance$600.00
47. GB/T 20206-2025Technical specification for banking seal verification system$395.00
48. GB/T 20209-2026Fireworks - Aluminium-magnesium alloy powder$365.00
49. GB/T 20210-2026Fireworks - Aluminium powder$365.00
50. GB/T 20212-2026Fireworks - Coagulant$170.00
51. GB/T 20214-2026Crystalline layered sodium disilicate$200.00
52. GB/T 20221-2023Unplasticized poly(vinyl chloride) (PVC-U) pipes for non-pressure buried drainage and sewerage systems$390.00
53. GB/T 20222-2025General technical requirements of anti-copying technical products$190.00
54. GB/T 20223-2025Cotton linter$305.00
55. GB/T 20228-2021Gallium arsenide single crystal$160.00
56. GB/T 20229-2022Gallium phosphide single crystal$190.00
57. GB/T 20230-2022Indium phosphide single crystal$245.00
58. GB/T 20234.2-2015Connection sets for conductive charging of electric vehicles - Part 2: AC charging couplers$50.00
59. GB/T 20234.3-2023Connection Set for Conductive Charging of Electric Vehicles – Part 3: DC Charging Coupler$230.00
60. GB/T 20234.4-2023Connection set of conductive charging for electric vehicles - Part 4: High power DC charging coupler$590.00
61. GB/T 20235-2026Technical specification for silver-tin oxide electrical contact materials$365.00
62. GB/T 20236-2025Accelerated outdoor weathering test methods for nonmetallic materials using concentrated natural sunlight$335.00
63. GB/T 20238-2018Installation, inspection and usage guidelines for wooden flooring$260.00
64. GB/T 20239-2023Wooden flooring for gymnasium$590.00
65. GB/T 20240-2017Glued laminated bamboo flooring$240.00
66. GB/T 20241-2021Laminated veneer lumber$305.00
67. GB/T 20244-2025Fibre optic elements for image transmission$290.00
68. GB/T 20251-2006Nickel foam for battery$80.00
69. GB/T 20251-2026Nickel foam$245.00
70. GB/T 20252-2014Lithium cobalt oxide$130.00
71. GB/T 20256-2019Specifications for gravimetric control surveying$550.00
72. GB/T 20257.1-2017Cartographic symbols for national fundamental scale maps - Part 1: Specifications for cartographic symbols for 1:500, 1:1 000 and 1:2 000 topographic maps$1,560.00
73. GB/T 20257.2-2017Cartographic symbols for national fundamental scale maps—Part 2:Specifications for cartographic symbols 1:5 000 & 1:10 000 topographic maps$1,325.00
74. GB/T 20257.3-2017Cartographic symbols for national fundamental scale maps—Part 3: Specifications for cartographic symbols 1:25 000 1:50 000 & 1:100 000 topographic maps$1,449.00
75. GB/T 20257.4-2017Cartographic symbols for national fundamental scale maps—Part4:Specifications for cartographic symbols 1:250 000 1:500 000 & 1:1 000 000 topographic maps$680.00
76. GB/T 20258.1-2019Data dictionary for fundamental geographic information features—Part 1: Scale of 1: 500 1: 1 000 1: 2 000$8,120.00
77. GB/T 20258.2-2019Data dictionary for fundamental geographic information features—Part 2: Scale of 1: 5 000 1: 10 000$6,560.00
78. GB/T 20258.3-2019Data dictionary for fundamental geographic information features—Part 3: Scale of 1:25 000 1:50 000 1:100 000$5,780.00
79. GB/T 20258.4-2019Data dictionary for fundamental geographic information features—Part 4: Scale of 1:250 000 1:500 000 1:1 000 000$2,850.00
80. GB/T 20261-2020Information security technology. System security engineering. Capability maturity model$1,805.00
81. GB/T 20270-2006Information security technology Basis security techniques requirement for network$130.00
82. GB/T 20272-2019Information security technology—Security technical requirements for operating system$330.00
83. GB/T 20272-2026Cybersecurity technology — Technical specification for the security of operating systems$1,865.00
84. GB/T 20273-2019Information security technology—Security technical requirements for database management system$590.00
85. GB/T 20274.1-2023Information security technology—Evaluation framework for information systems security assurance—Part 1:Introduction and general model$170.00
86. GB/T 20274.2-2026Cybersecurity technology — Evaluation framework for information system security assurance — Part 2: Security assurance requirements$965.00
87. GB/T 20275-2021Information security technology—Technical requirements and testing and evaluation approaches for network-based intrusion detection system$1,190.00
88. GB/T 20279-2024Cybersecurity technology - Technical specification for network and terminal separation products$725.00
89. GB/T 20281-2020Information security technology—Security technical requirements and testing assessment approaches for firewall$560.00
90. GB/T 20284-2026Single burning item test for building materials and products$590.00
91. GB/T 20292-2019Methods for measuring the performance of tumble dryers for household use$600.00
92. GB/T 20299.3-2024Digital technique application of building and residence community - Part 3: Property management$425.00
93. GB/T 20303.2-2021Cranes - Cabins and control stations - Part 2: Mobile cranes$155.00
94. GB/T 20303.5-2021Cranes—Cabins and control stations—Part 5: Overhead travelling and portal bridge cranes$145.00
95. GB/T 20306-2017Amusement devices terminology$610.00
96. GB/T 20308-2020Geometrical product specifications (GPS) - Matrix model$245.00
97. GB/T 20311-2021Building components and building elements - Thermal resistance and thermal transmittance - Calculation methods$395.00
98. GB/T 20314-2017Thin float glass for liquid crystal display ( LCD ) applications$120.00
99. GB/T 20317-2023Fused extrusion and deposition modeling machines - Testing of the accuracy$305.00
100. GB/T 20319-2017Wind turbine generator systems—Specification for acceptance$360.00
101. GB/T 20321-2023Inverter of wind and solar energy supply power system for off-grid$260.00
102. GB/T 20322-2023Petroleum and natural gas industries - Reciprocating compressors$2,615.00
103. GB/T 20323-2020Milling cutters designation - Shank-type and bore-type milling cutters of solid or tipped design or with indexable cutting edges$245.00
104. GB/T 20326-2021Long full-diameter shank taps with recess$155.00
105. GB/T 20328-2023Circular screwing dies of R series for taper pipe threads$150.00
106. GB/T 20333-2023Taps for parallel and taper pipe threads general dimensions and marking$185.00
107. GB/T 20344-2025Tractors and machinery for agriculture and forestry - Power transmission connectors$245.00
108. GB/T 20346.1-2021Equipment for distributing fertilizer - Part 1: Full width fertilizer distributors$455.00
109. GB/T 20346.2-2022Equipment for distributing fertilizer - Part 2: Fertilizer distributor in lines$380.00
110. GB/T 20348-2026Basic theory vocabulary of traditional Chinese medicine$2,105.00
111. GB/T 20354-2026Quality requirements for products of geographical indication - Anji white tea$365.00
112. GB/T 20368-2021Production，storage and handling of liquefied natural gas (LNG)$890.00
113. GB/T 20370-2021Guideline for enzyme preparations classification$155.00
114. GB/T 20373-2021Determination of acetyl content in modified starch—Titrimetric method$95.00
115. GB/T 20384-2024Textiles - Determination of chlorobenzenes and chlorinated toluenes$200.00
116. GB/T 20385.1-2021Textiles - Determination of organotin compounds - Part 1: Derivatisation method using GC-MS$215.00
117. GB/T 20390.1-2018Textiles -- Assessment of the ignitability of bedding items -- Part 1: Ignition source: smouldering cigarette$210.00
118. GB/T 20390.2-2018Textiles -- Assessment of the ignitability of bedding items -- Part 2: Ignition source: match-flame equivalent$210.00
119. GB/T 20392-2023Test method for physical properties of cotton fibers—High volume instruments method$185.00
120. GB/T 20393-2024General technical requirements for products with natural color cotton and mixture of natural color cotton$170.00
121. GB/T 20394-2019Gymnastic artificial turf$210.00
122. GB/T 20397-2026Ginkgo seed kernel$185.00
123. GB/T 20398-2021Grade of walnut$215.00
124. GB/T 20406-2017Potassium sulfate for agricultural use$210.00
125. GB/T 20408-2016Radio-controlled analogue clocks$210.00
126. GB/T 20409-2018Seamless multi-rifled steel tubes for high-pressure boiler$300.00
127. GB/T 20412-2021Fused calcium magnesium phosphate fertilizer$305.00
128. GB/T 20413-2017Single superphosphate$210.00
129. GB/T 20415-2025Rubber- or plastic-coated fabrics - Insulating tape$190.00
130. GB/T 20416-2026Technical regulation for ecotourism planning in protected areas$560.00
131. GB/T 20422-2018Lead-free solders$150.00
132. GB/T 20424-2025Specification for the limits on harmful element content of heavy non-ferrous metal concentrate products$80.00
133. GB/T 20429-2024Installation rule for electrical water heaters$180.00
134. GB/T 20436-2025Dimethylsiloxane cyclics mixture$305.00
135. GB/T 20441.2-2018Electroacoustics -- Measurement microphones -- Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique$480.00
136. GB/T 20445-2017Planed lumber$150.00
137. GB/T 20446-2022Wood moulding$365.00
138. GB/T 20452-2021Quality grades of apricot kernels$120.00
139. GB/T 20453-2022Quality grades of products for persimmon$155.00
140. GB/T 20455-2023Forwarders - Terms, definitions and commercial specifications$335.00
141. GB/T 20456-2023Portable chain-saws - Non-manually actuated chain brake performance$190.00
142. GB/T 20472-2026Sulphoaluminate cement$215.00
143. GB/T 20473-2021Dry-mixed thermal insulating mortar for buildings$245.00
144. GB/T 20475.1-2006Classification of the content of harmful elements in coal - Part 1: Phosphorus$50.00
145. GB/T 20475.2-2006Classification of the content of harmful elements in coal - Part 2: Chlorine$60.00
146. GB/T 20475.3-2012Classification of the content of harmful elements in coal - Part 3: Arsenic$50.00
147. GB/T 20475.4-2012Classification of the content of harmful elements in coal - Part 4: Mercury$50.00
148. GB/T 20475.5-2020Classification for content of harmful elements in coal—Part 5: Fluorine$90.00
149. GB/T 20476-2025Treatment and management of pine wood and its products in quarantine area for pine wilt disease$220.00
150. GB/T 20478-2024Glossary of plant quarantine$410.00
151. GB/T 20480-2025Classification of sand and dust weather$200.00
152. GB/T 20481-2026Grades of meteorological drought$305.00
153. GB/T 20482-2017Grade of snow disaster in pastoral area$150.00
154. GB/T 20483-2025Land desertification monitoring method$250.00
155. GB/T 20484-2017Grade of cold air$60.00
156. GB/T 20485.16-2018Methods for the calibration of vibration and shock transducers -- Part 16: Calibration by earth gravitation$170.00
157. GB/T 20485.32-2021Methods for the calibration of vibration and shock transducers - Part 32: Resonance testing - Testing the frequency and the phase response of accelerometers by means of shock excitation$215.00
158. GB/T 20485.33-2018Methods for the calibration of vibration and shock transducers -- Part 33: Testing of magnetic field sensitivity$190.00
159. GB/T 20485.42-2018Methods for the calibration of vibration and shock transducers -- Part 42: Calibration of seismometers with high accuracy using acceleration of gravity$210.00
160. GB/T 20485.43-2021Methods for the calibration of vibration and shock transducers - Part 43: Calibration of accelerometers by model-based parameter identification$245.00
161. GB/T 20486-2026Grades of watershed areal rainfall$155.00
162. GB/T 20487-2018Urban fire-danger weather ratings$150.00
163. GB/T 20490-2023Non-destructive testing(NDT) methods of steel tubes - Automated ultrasonic testing of seamless and welded steel tubes for the detection of laminar imperfections$215.00
164. GB/T 20491-2017Steel slag powder used for cement and concrete$90.00
165. GB/T 20492-2019Zinc-5% aluminum-mixed mischmetal alloy - coated steel wire and steel wire strand$300.00
166. GB/T 20493.3-2018Electronic imaging -- Test target for scanning of office documents -- Part 3: Test target for use in lower resolution applications$245.00
167. GB/T 20501.4-2018Public information guidance systems—Design principles and requirements for guidance elements—Part 4: Street guidance map$170.00
168. GB/T 20507-2018Spherical nickel hydroxide$360.00
169. GB/T 20508-2019Tantalum carbide powder$150.00
170. GB/T 20509-2023Copper and copper alloys drawing for contacting materials of electric locomotives$245.00
171. GB/T 20510-2024Indium tin oxide targets$250.00
172. GB/T 20518-2018Information security technology—Public key infrastructure—Digital certificate format$740.00
173. GB/T 20524-2018Agriculture and forest microclimate measuring instrument$240.00
174. GB/T 20532-2025Specification of part of speech (POS) tag of contemporary Chinese for Chinese information processing (CIP)$245.00
175. GB/T 20533-2026Metadata for ecological scientific data$1,325.00
176. GB/T 20538.1-2025Electronic business eXtensible Markup Language (ebXML) business data and process — Part 1: Core components data type catalogue$365.00
177. GB/T 20549-2023Specifications and test methods of electromagnetic compatibility for digital cellular mobile communications repeater$245.00
178. GB/T 20551-2022Specification on the application of HACCP in the slaughter of livestock and poultry$740.00
179. GB/T 20552-2023Pacific oyster$155.00
180. GB/T 20554-2024Kelp$215.00
181. GB/T 20556-2026Swimming crab$185.00
182. GB/T 20559-2006Product of geographical indication - Yongchun ponkan$110.00
183. GB/T 20564.1-2017Continuously cold-rolled high strength steel sheet and strip for automobiles - Part 1: Bake hardening steel$120.00
184. GB/T 20564.10-2017Continuously cold-rolled high strength steel sheet and strip for automobiles - Part 10: Twinning induced plasticity steel$120.00
185. GB/T 20564.11-2017Continuously cold-rolled high strength steel sheet and strip for automobiles - Part 11: Carbon manganese steel$120.00
186. GB/T 20564.12-2019Continuously cold rolled high strength steel sheet and strip for automobile—Part 12:Dual phase steel with high formability$120.00
187. GB/T 20564.13-2023Continuously cold-rolled high strength steel sheet and strip for automobiles - Part 13: Medium manganese steel$155.00
188. GB/T 20564.14-2023Continuously cold-rolled high strength steel sheet and strip for automobiles - Part 14: Low density steel$155.00
189. GB/T 20564.2-2017Continuously cold-rolled high strength steel sheet and strip for automobiles - Part 2: Dual phase steel$100.00
190. GB/T 20564.3-2017Continuously cold-rolled high strength steel sheet and strip for automobiles - Part 3: High strength interstitial free steel$120.00
191. GB/T 20564.4-2022Continuously cold rolled high strength steel sheet and strip for automobile—Part 4: High strength low alloy steel$170.00
192. GB/T 20564.5-2022Continuously cold rolled high strength steel sheet and strip for automobile—Part 5: Isotropic steel$150.00
193. GB/T 20564.6-2022Continuously cold rolled high strength steel sheet and strip for automobile—Part 6: Transformation induced plasticity steel$150.00
194. GB/T 20564.7-2022Continuously cold rolled high strength steel sheet and strip for automobile—Part 7: Martensitic steel$245.00
195. GB/T 20564.8-2015Continuously cold-rolled high strength steel sheet and strip for automobiles - Part 8: Complex phase steel$70.00
196. GB/T 20564.9-2016Continuously cold-rolled high strength steel sheet and strip for automobiles - Part 9: Quenching and partitioning steel$100.00
197. GB/T 20565-2022Iron ores and direct reduced iron - Vocabulary$575.00
198. GB/T 20567-2020Vanadium-nitrogen alloy$85.00
199. GB/T 20568-2022Metallic materials - Tube ring hydraulic pressure test$170.00
200. GB/T 20570-2015Guidelines for evaluating the storage character of maize$180.00
201. GB/T 20572-2019Evaluating specification on the HACCP certification of the natural casings processin$300.00
202. GB/T 20575-2019Specification of good manufacture practice for fresh and frozen meat processing$150.00
203. GB/T 20609-2023Traffic information collection—Microwave traffic flow detector$395.00
204. GB/T 20613-2026Fireworks - Specification for storage and transport safety inspection$200.00
205. GB/T 20614-2026Fireworks - Determination of perchlorate content in pyrotechnic composition$260.00
206. GB/T 20615-2026Fireworks - Determination of aluminium content in pyrotechnic composition$125.00
207. GB/T 20616-2026Fireworks - Determination of bismuth content in pyrotechnic composition$185.00
208. GB/T 20617-2026Fireworks - Determination of iron content in pyrotechnic composition$125.00
209. GB/T 20618-2026Fireworks - Determination of nitrate content in pyrotechnic composition$260.00
210. GB/T 20623-2025Emulsions for architectural coatings$230.00
211. GB/T 20626.1-2017Specific environmental condition—Electric and electronic products for plateau—Part 1:General technical requirements$210.00
212. GB/T 20626.2-2018Specific environmental condition—Electrical and electronic products for plateau—Part 2: Selective types and testing specification$210.00
213. GB/T 20626.3-2022Specific environmental condition—Electric and electronic products for plateau—Part 3:Protection requirement of lightning,pollution,condensation$245.00
214. GB/T 20629.3-2019Non-cellulosic papers for electrical purposes -- Part 3: Unfilled aramid (aromatic polyamide) papers$150.00
215. GB/T 20629.4-2021Non-cellulosic papers for electrical purposes - Part 4: Aramid fibre paper containing mica particles$155.00
216. GB/T 20632.2-2022Vulcanized fibre for electrical purposes - Part 2: Methods of test$170.00
217. GB/T 20632.3-2022Vulcanized fibre for electrical purposes - Part 3: Flat sheets$110.00
218. GB/T 20638-2023General specification for stepping motors$360.00
219. GB/T 20643.1-2025Special environmental condition — Environmental test method — Part 1: General$275.00
220. GB/T 20643.2-2025Specific environmental condition — Environmental test method — Part 2: Artificial environment test method and guidance — Electric and electronic products (including communication products)$200.00
221. GB/T 20643.3-2025Special environmental condition — Environmental test method — Part 3: Artificial environmental test method and guidance — Polymer material$170.00
222. GB/T 20644.1-2025Special environmental condition — Guidance for choosing — Part 1: Metals protection$185.00
223. GB/T 20644.2-2025Special environmental condition—Guidance for choosing—Part 2: Polymer materials$260.00
224. GB/T 20645-2021Specific environmental condition—Technical requirements of low-voltage apparatuses for plateau$215.00
225. GB/T 20651.1-2018Reciprocating internal combustion engines—Safety—Part 1: Compression ignition engines$240.00
226. GB/T 20657-2022Petroleum and natural gas industries - Formulae and calculations for the properties of casing, tubing, drill pipe and line pipe used as casing or tubing$5,540.00
227. GB/T 20660-2020Petroleum and natural gas industries. Control and mitigation of fires and explosions on offshore production installations. Requirements and guidelines$800.00
228. GB/T 20663-2026Accumulators$890.00
229. GB/T 20671.1-2020Classification system and test methods for nonmetallic gasket materials—Part 1: Standard classification system for nonmetallic gasket materials$205.00
230. GB/T 20671.11-2026Classification system and test methods for nonmetallic gasket materials - Part 11: Test method for determining resistance of synthetic polymeric materials to fungi$155.00
231. GB/T 20671.3-2020Classification system and test methods for nonmetallic gasket materials—Part 3: Standard test method for fluid resistance of gasket materials$170.00
232. GB/T 20671.4-2026Classification system and test methods for nonmetallic gasket materials — Part 4: Test method for sealability of gasket materials$260.00
233. GB/T 20671.5-2020Classification system and test methods for nonmetallic gasket materials—Part 5: Standard test method for creep relaxation of gasket materials$170.00
234. GB/T 20671.6-2020Classification system and test methods for nonmetallic gasket materials—Part 6: Standard test method for adhesion of gasket materials to metal surfaces$155.00
235. GB/T 20674.1-2020Plastics pipes and fittings. Equipment for fusion jointing polyethylene systems - Part 1: Butt fusion$485.00
236. GB/T 20674.2-2020Plastic pipes and fittings Polyethylene system welding equipment - Part 2: Electrofusion connection$425.00
237. GB/T 20674.3-2020Plastics pipes and fittings. Equipment for fusion jointing polyethylene systems -- Part 3: Operator""s badge$155.00
238. GB/T 20674.4-2020Plastics pipes and fittings. Equipment for fusion jointing polyethylene systems - Part 4: Traceability coding$365.00
239. GB/T 20684-2017Glyphosate aqueous solution$270.00
240. GB/T 20686-2017Glyphosate water soluble powders(granules)$300.00
241. GB/T 20688.4-2023Rubber bearings—Part 4: Normal rubber bearings$1,160.00
242. GB/T 20688.5-2014Rubber bearings - Part 5: Elastic sliding seismic-protection isolator for buildings$140.00
243. GB/T 20693-2020Emamectin benzoate technical material$120.00
244. GB/T 20694-2019Emamectin benzoate emulsifiable concentrates$240.00
245. GB/T 20695-2021Lambda-cyhalothrin technical material$155.00
246. GB/T 20696-2021Lambda-cyhalothrin emulsifiable concentrate$215.00
247. GB/T 20702-2026Test method for the extinguishing performance of gaseous extinguishing agents$260.00
248. GB/T 20705-2023Quality requirement for cocoa mass and cocoa cake$245.00
249. GB/T 20706-2023Quality requirement for cocoa powder$215.00
250. GB/T 20707-2021Quality requirement for cocoa butter$155.00
251. GB/T 20708-2019Limit and determination of parts of harmful substances in textile dyeing and finishing auxiliaries$120.00
252. GB/T 20711-2022General quality for cooked cured ham$155.00
253. GB/T 20712-2022General quality for cooked sausage$95.00
254. GB/T 20715-2024Milk replacer for calves$170.00
255. GB/T 20720.1-2019Enterprise-control system integration -- Part 1: Models and terminology$800.00
256. GB/T 20720.2-2020Enterprise-control system integration - Part 2: Objects and attributes for enterprise-control system integration$1,990.00
257. GB/T 20720.3-2022Enterprise-control system integration - Part 3: Activity models of manufacturing operations management$1,040.00
258. GB/T 20720.4-2021Enterprise-control system integration - Part 4: Object model attributes for manufacturing operations management integration$980.00
259. GB/T 20721-2022Automated guided vehicles - General specifications$455.00
260. GB/T 20724-2021Microbeam analysis—Method of thickness measurement for thin crystals by convergent beam electron diffraction$305.00
261. GB/T 20728-2021Measurement of fluid flow in closed conduits - Guidance to the selection, installation and use of Coriolis flowmeters$485.00
262. GB/T 20730.2-2019Instruments with analogue inputs and two-or multi-state outputs for use in industrial-process control systems -- Part 2: Guidance for inspection and routine testing$90.00
263. GB/T 20733-2022Digital camera - Vocabulary$740.00
264. GB/T 20735-2025Pressure regulators of CNG vehicles$305.00
265. GB/T 20738-2018Rooftop air conditioning unit$360.00
266. GB/T 20783-2023Stable chlorine dioxide solution$150.00
267. GB/T 20784-2018Potassium nitrate for agricultural use$170.00
268. GB/T 20786-2025Rubber track$260.00
269. GB/T 20787-2023Reciprocating internal combustion engines—Measurement method for structure-borne noise$310.00
270. GB/T 20790-2024Head-feed combine harvesters - Technical requirements$250.00
271. GB/T 20793-2015Degummed ramie$130.00
272. GB/T 20794-2021Industrial classification for ocean industries and their related activities$1,685.00
273. GB/T 20795-2025Determination of smoke point for vegetable fats and oils$170.00
274. GB/T 20801.1-2025Pressure piping code - Part 1: Industrial piping$2,980.00
275. GB/T 20801.2-2020Pressure piping code - Industrial piping - Part 2: Materials$980.00
276. GB/T 20801.3-2020Pressure piping code - Industrial piping - Part 3: Design and calculation$1,315.00
277. GB/T 20801.4-2020Pressure piping code - Industrial piping - Part 4: Fabrication and assembly$630.00
278. GB/T 20801.5-2025Pressure piping code - Part 5: Hydrogen piping and pipelines$1,265.00
279. GB/T 20801.6-2020Pressure piping code - Industrial piping - Part 6: Safeguarding$470.00
280. GB/T 20804-2025Compound premix of dairy cattle$170.00
281. GB/T 20806-2022Determination of neutral detergent fiber (NDF) in feeds$125.00
282. GB/T 20807-2025Supplementary concentrate of sheep$150.00
283. GB/T 20808-2022Paper towel$335.00
284. GB/T 20810-2018Toilet tissue paper (including toilet tissue base paper)$230.00
285. GB/T 20811-2018Classification requirement of paper and board for recycling$150.00
286. GB/T 20817-2006Rule for cotton quarantine$135.00
287. GB/T 20818.11-2018Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 11: List of properties (LOPs) of measuring equipment for electronic data exchange - Generic structures$610.00
288. GB/T 20818.12-2020Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 12: Lists of properties (LOPs) for flow measuring equipment for electronic data exchange$6,500.00
289. GB/T 20818.21-2020Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 21: Lists of properties (LOP) for automated valves for electronic data exchange - Generic structures$365.00
290. GB/T 20829-2021Performance requirements and test method of fixed aerosol fire-extinguishing systems for ships$245.00
291. GB/T 20833.1-2021Rotating electrical machines - The winding insulation - Part 1: Off-line partial discharge measurements$640.00
292. GB/T 20833.3-2018Rotating electrical machines -- Stator winding insulation of rotating electrical machines -- Part 3: Dielectric dissipation factor measurement$300.00
293. GB/T 20834-2024Technical requirements for motor-generator$260.00
294. GB/T 20835-2024Guide for magnetization test of generator stator core$305.00
295. GB/T 20839-2025Intelligent transport systems - General terminology$365.00
296. GB/T 20840.102-2020Instrument transformers - Part 102: Ferroresonance oscillations in substations with inductive voltage transformers$680.00
297. GB/T 20840.103-2020Instrument transformers - Part 103: The use of instrument transformers for power quality measurement$1,290.00
298. GB/T 20840.14-2022Instrument transformers - Part 14: Additional requirements for current transformers for DC applications$665.00
299. GB/T 20840.15-2022Instrument transformers - Part 15: Additional requirements for voltage transformers for DC applications$545.00
300. GB/T 20848-2026Mooring chain$560.00
301. GB/T 20850-2025Safety of machinery - Guidelines for the application of machinery safety standards$1,400.00
302. GB/T 20851.1-2019Electronic toll collection - Dedicated short range communication - Part 1: Physical layer$120.00
303. GB/T 20851.2-2019Electronic toll collection - Dedicated short range communication - Part 2: Data link layer$270.00
304. GB/T 20851.3-2019Electronic toll collection - Dedicated short range communication - Part 3: Application layer$480.00
305. GB/T 20851.4-2019Electronic toll collection - Dedicated short range communication - Part 4: Equipment application$440.00
306. GB/T 20851.5-2019Electronic toll collection - Dedicated short range communication - Part 5: Test methods of the main parameters in physical layer$365.00
307. GB/T 20863.1-2021Cranes - Classification - Part 1: General$245.00
308. GB/T 20864-2021Rice transplanter—Specification$155.00
309. GB/T 20865-2017No or little-tillage fertilizes-seeder$240.00
310. GB/T 20867.1-2024Robotics - Application specification for safety requirements - Part 1: Industrial robot$500.00
311. GB/T 20870.10-2023Semiconductor devices - Part 16-10: Technology Approval Schedule for monolithic microwave integrated circuits$790.00
312. GB/T 20870.2-2023Semiconductor devices - Part 16-2: Microwave integrated circuits - Frequency prescalers$425.00
313. GB/T 20870.5-2023Semiconductor devices - Part 16-5: Microwave integrated circuits - Oscillators$590.00
314. GB/T 20871.63-2021Organic light emitting diode (OLED) displays - Part 6-3: Measuring methods of image quality$620.00
315. GB/T 20878-2024Stainless steels - Designation and chemical composition$585.00
316. GB/T 20879-2026Technical requirements for pest risk analysis for imported plants and plant products$365.00
317. GB/T 20880-2018Edible dextrose$150.00
318. GB/T 20882.1-2025Quality requirements for starch sugar — Part 1: Edible dextrose$260.00
319. GB/T 20882.2-2021Quality requirements for starch sugar — Part 2: Glucose syrup and glucose syrup powder$210.00
320. GB/T 20882.3-2021Quality requirements for starch sugar—Part 3:Crystalline fructose and solid fructose-glucose$155.00
321. GB/T 20882.4-2021Quality requirements for starch sugars - Part 4: High fructose syrup$140.00
322. GB/T 20882.5-2025Quality requirements for starch sugar — Part 5: Maltose$305.00
323. GB/T 20882.6-2021Quality requirements for starch sugars - Part 6: Maltodextrin$200.00
324. GB/T 20882.7-2025Quality requirements for starch sugar — Part 7: Trehalose$260.00
325. GB/T 20886.1-2021Quality requirements for yeast products - Part 1: Yeast for food processing$365.00
326. GB/T 20886.2-2021Quality requirements for yeast products - Part 2: Processed yeast products$395.00
327. 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
328. GB/T 20887.2-2022Continuously hot rolled high strength steel sheet and strip for automobile—Part 2: High hole expansion steel$170.00
329. GB/T 20887.3-2022Continuously hot rolled high strength steel sheet and strip for automobile—Part 3: Dual phase steel$170.00
330. GB/T 20887.4-2022Continuously hot rolled high strength steel sheet and strip for automobile—Part 4: Transformation induced plasticity steel$170.00
331. GB/T 20887.5-2022Continuously hot rolled high strength steel sheet and strip for automobile—Part 5: Martensitic steel$170.00
332. GB/T 20887.6-2017Continuously hot-rolled high strength steel sheet and strip for automobiles - Part 6: Complex phase steel$130.00
333. GB/T 20887.7-2017Continuously hot-rolled high strength steel sheet and strip for automobiles - Part 7: Steels for hydraulic forming$100.00
334. 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
335. 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
336. GB/T 20892-2020Praseodymium-neodymium metal$95.00
337. 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
338. GB/T 20899.1-2019Methods for chemical analysis of gold ores—Part 1:Determination of gold content$260.00
339. GB/T 20899.10-2025Methods for chemical analysis of gold ores — Part 10: Determination of antimony content$250.00
340. 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
341. 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
342. 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
343. 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
344. GB/T 20899.2-2019Methods for chemical analysis of gold ores - Part 2:Determination of silver content - Flame atomic absorption spectrometric method$90.00
345. GB/T 20899.3-2019Methods for chemical analysis of gold ores—Part 3:Determination of arsenic content$160.00
346. GB/T 20899.4-2021Methods for chemical analysis of gold ores—Part 4: Determination of copper content$215.00
347. GB/T 20899.5-2021Methods for chemical analysis of gold ores—Part 5: Determination of lead content$215.00
348. GB/T 20899.6-2021Methods for chemical analysis of gold ores—Part 6: Determination of zinc content$155.00
349. GB/T 20899.7-2022Methods for chemical analysis of gold ores—Part 7: Determination of iron content$155.00
350. GB/T 20899.8-2022Methods for chemical analysis of gold ores—Part 8: Determination of sulfur content$215.00
351. GB/T 20899.9-2025Methods for chemical analysis of gold ores — Part 9: Determination of carbon content$245.00
352. GB/T 20907-2024Technical specification for the automatic fare collection system of urban rail transit$390.00
353. GB/T 20909-2017Steel windows and doors$390.00
354. GB/T 20910-2025Temperature and pressure safety valves for hot water supply systems$245.00
355. GB/T 20914.3-2019Stamping dies -- Gas springs -- Part 3: Gas spring with increased spring force and compact built height$270.00
356. GB/T 20914.4-2019Stamping dies -- Gas springs -- Part 4: Gas spring with increased spring force and same built height$150.00
357. GB/T 20919-2018External micrometer with electronic digital display$170.00
358. GB/T 20923-2025Service indicators and evaluation methods for road freight transport enterprises$305.00
359. GB/T 20927-2026Recycled titanium raw material$200.00
360. GB/T 20928-2020Seamless inner grooved copper tube$290.00
361. 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
362. GB/T 20933-2021Hot rolled sheet pile$215.00
363. GB/T 20935-2025Metal materials — Method of electromagnetic acoustic inspection$365.00
364. 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
365. 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
366. GB/T 20936.1-2022Gas detectors for explosive atmospheres - Part 1: Performance requirements of detectors for flammable gases$545.00
367. GB/T 20937-2018Potassium magnesium of sulphate fertilizer$150.00
368. GB/T 20948-2025Tractors for agriculture and forestry — Devices for indirect vision — Technical specification$500.00
369. GB/T 20956-2025Printing machinery - Safety technical specification for cutting equipment$470.00
370. GB/T 20959-2025NC vertical turret$365.00
371. GB/T 20960-2025NC horizontal turret$365.00
372. GB/T 20961-2018Single-rope drum mine hoists$180.00
373. GB/T 20965-2025Control network HBES technical specification — Home and building control system$10,400.00
374. GB/T 20969.1-2021Special environmental condition—Machinery for plateau—Part 1: Requirements for internal combustion engines on plateau$155.00
375. GB/T 20969.2-2021Special environmental condition—Machinery for plateau—Part 2:Requirement for construction machinery on plateau$215.00
376. 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
377. GB/T 20969.5-2021Special environmental condition—Machinery for plateau—Part 5:Guide rule of test for plateau natural environment—Construction machinery$155.00
378. GB/T 20973-2020Bentonite$230.00
379. GB/T 20974-2025Rigid phenolic foam for thermal insulation (PF)$155.00
380. GB/T 20975.1-2018Methods for chemical analysis of aluminium and aluminium alloys—Part 1: Determination of mercury content$130.00
381. GB/T 20975.10-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 10: Determination of tin content$155.00
382. GB/T 20975.11-2018Methods for chemical analysis of aluminium and aluminium alloys—Part 11: Determination of lead content$130.00
383. GB/T 20975.12-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 12: Determination of titanium content$125.00
384. GB/T 20975.13-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 13: Determination of vanadium content$155.00
385. GB/T 20975.14-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 14: Determination of nickel content$215.00
386. GB/T 20975.15-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 15: Determination of boron content$155.00
387. GB/T 20975.16-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 16: Determination of magnesium content$200.00
388. GB/T 20975.17-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 17: Determination of strontium content$155.00
389. GB/T 20975.18-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 18:Determination of chromium content$215.00
390. GB/T 20975.19-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 19: Determination of zirconium content$155.00
391. GB/T 20975.2-2018Methods for chemical analysis of aluminium and aluminium alloys—Part2: Determination of arsenic content$130.00
392. 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
393. GB/T 20975.21-2020Methods for chemical analysis of aluminium and aluminium alloy—Part 21: Determination of calcium content$155.00
394. GB/T 20975.22-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 22:Determination of beryllium content$140.00
395. GB/T 20975.23-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 23:Determination of antimony content$110.00
396. GB/T 20975.24-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 24: Determination of total rare earth content$125.00
397. 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
398. GB/T 20975.26-2013Methods for chemical analysis of aluminium and aluminium alloys - Part 26: Determination of carbon content - Infrared absorption method$80.00
399. 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
400. 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
401. GB/T 20975.29-2019Methods for chemical analysis of aluminium and aluminium alloys—Part 29:Determination of molybdenum content—Thiocyanate spectrophotometry$70.00
402. GB/T 20975.3-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 3: Determination of copper content$215.00
403. 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
404. GB/T 20975.31-2019Methods for chemical analysis of aluminium and aluminium alloys—Part 31: Determination of phosphorus content—Molybdenum blue spectrophotometry$70.00
405. GB/T 20975.32-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 32: Determination of bismuth content$140.00
406. 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
407. 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
408. GB/T 20975.35-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 35:Determination of tungsten content—Thiocyanate spectrophotometric method$90.00
409. 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
410. GB/T 20975.37-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 37:Determination of niobium content$155.00
411. GB/T 20975.4-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 4:Determination of iron content$155.00
412. GB/T 20975.5-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 5: Determination of silicon content$155.00
413. GB/T 20975.6-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 6: Determination of cadmium content$155.00
414. GB/T 20975.7-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 7:Determination of manganese content$155.00
415. GB/T 20975.8-2020Methods for chemical analysis of aluminium and aluminium alloys—Part 8: Determination of zinc content$155.00
416. 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
417. GB/T 20976-2023Quality requirement for soft-serve ice cream premix powder$150.00
418. GB/T 20977-2024General quality for pastry$170.00
419. GB/T 20978-2021Quality requirement for soft ice cream serving-machine$245.00
420. GB/T 20979-2019Information security technology—Technical requirements for iris recognition system$300.00
421. GB/T 20980-2021General quality requirements for biscuits$215.00
422. GB/T 20981-2021General quality requirements for bread$145.00
423. GB/T 20984-2022Information security technology—Risk assessment method for information security$455.00
424. GB/T 20986-2023Information security technology—Guidelines for category and classification of cybersecurity incidents$425.00
425. GB/T 20990.1-2020Thyristor valves for high voltage direct current (HVDC) power transmission - Part 1: Electrical testing$605.00
426. GB/T 20994-2007Shunt capacitors and AC filter capacitors for HVDC transmission systems$380.00
427. GB/T 20995-2020Static var compensators(SVC). Testing of thyristor valves$545.00
428. GB/T 20996.1-2020Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 1: Steady-state conditions$980.00
429. GB/T 20996.2-2020Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 2: Faults and switching$620.00
430. GB/T 20996.3-2020Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 3: Dynamic conditions$485.00
431. GB/T 20999-2017Data communication protocol between traffic signal controller and control center$500.00
432. GB/T 21001.3-2026Refrigerated display cabinets - Part 3: Test rating$365.00
433. GB/T 21008-2023Aerial ropeways for underground mines - Safety requirements$145.00
434. GB/T 21010-2017Current land use classification$210.00
435. GB/T 21015-2023Technical specifications for paddy drying$155.00
436. GB/T 21016-2023Technical specifications for wheat drying$155.00
437. GB/T 21017-2021Technical specifications for maize drying$160.00
438. GB/T 21021.1-2021Intermodulation level measurement for passive RF and microwave devices - Part 1: General requirements and measuring methods$215.00
439. 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
440. GB/T 21021.3-2021Intermodulation level measurement for passive RF and microwave devices - Part 3: Measurement of passive intermodulation in coaxial connectors$95.00
441. GB/T 21021.4-2021Intermodulation level measurement for passive RF and microwave devices - Part 4: Measurement of passive intermodulation in coaxial cables$140.00
442. GB/T 21032-2026Polyamide monofilament$230.00
443. GB/T 21033-2025Determination of immunoglobulin IgG in feeds - High performance liquid chromatography$155.00
444. GB/T 21035-2025Feed safety assessment — Teratogenicity test$230.00
445. GB/T 21037-2024Determination of diaveridine, trimethoprim and ormetoprim in feeds$245.00
446. GB/T 21044-2024Chinese soft-shelled turtle$305.00
447. GB/T 21046-2024Neopyropia yezoensis$180.00
448. GB/T 21047-2026Red drum$170.00
449. GB/T 21049-2022Han Xin code$1,940.00
450. GB/T 21050-2019Information security technology—Security requirements for network switch$740.00
451. GB/T 21053-2023Information security techniques - Public key infrastructure - Security technology requirement for PKI system$350.00
452. GB/T 21063.1-2007Government information resource catalog system - Part 1: Framework$110.00
453. GB/T 21067-2025Electrical equipment of industrial machines - Electromagnetic compatibility - General requirements for immunity$245.00
454. GB/T 21071-2021Quality requirement of warehousing service$155.00
455. GB/T 21072-2021Grades for general warehouse$155.00
456. GB/T 21075-2026Reservoir-induced earthquake hazard assessment$305.00
457. 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
458. GB/T 21078.4-2023Financial services - Personal Identification Number (PIN) management and security - Part 4: Approved algorithms for PIN encipherment$100.00
459. GB/T 21079.1-2022Financial services - Secure cryptographic devices(retail) - Part 1: Concepts, requirements and evaluation methods$410.00
460. GB/T 21085-2020Qualified certificate of vehicle$340.00
461. GB/T 21087-2020Energy recovery ventilators for outdoor air handling$620.00
462. GB/T 21091-2026Self-ballasted electrodeless fluorescent lamps for general lighting services - Performance specifications$260.00
463. GB/T 21097-2025General rules on safe service life and recycling for household and similar electrical appliances$190.00
464. 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
465. GB/T 21101-2025Determination of porcine-derived material in feeds$185.00
466. GB/T 21107-2025Determination of horse and donkey-derived materials in feeds$245.00
467. GB/T 21108-2025Determination of chloramphenicol, thiamphenicol and florfenicol in feeds — High performance liquid chromatography-tandem mass spectrometry$125.00
468. 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
469. GB/T 21114-2019Refractories—Chemical analysis by X-ray fluorescence(XRF)—Fused cast-bead method$1,030.00
470. GB/T 21115-2007Measurement of the levitation force of bulk oxide superconductors$110.00
471. GB/T 21116-2007Hydraulic vibration generator systems$230.00
472. GB/T 21118-2026Mantou made of wheat flour$200.00
473. GB/T 21120-2018Synthetic fibres for cement cement concrete and mortar$420.00
474. GB/T 21122-2025Fortified wheat flour$185.00
475. GB/T 21123-2025Nutrition fortification - Edible oil and fat fortified with vitamin A$95.00
476. GB/T 21124-2026Determination of black point kernels in wheat$125.00
477. GB/T 21125-2026Technical specification for the breeding of edible mushroom varieties$155.00
478. GB/T 21126-2026Determination of sodium formaldehyde sulfoxylate in wheat flour, rice flour and their products$200.00
479. GB/T 21138-2019Tobacco seeds$210.00
480. GB/T 21140-2017Non-structural finger jointed lumber$190.00
481. GB/T 21144-2023Solid concrete brick$190.00
482. GB/T 21145-2023Mechanical transport refrigeration units$365.00
483. GB/T 21149-2019Fired roofing tiles$240.00
484. GB/T 21151-2025Main axial fans for coal mines - Technical specification$305.00
485. GB/T 21152-2018Earth-moving machinery -- Wheeled or high-speed rubber-tracked machines -- Performance requirements and test procedures for brake systems$360.00
486. GB/T 21158-2025Seed processing complete equipment$305.00
487. GB/T 21165-2007Determination of chloramphenicol residues in casing - LC-MS/MS method$110.00
488. GB/T 21166-2007Determination of nitrofuran metabolites residues in casing - LC-MS-MS method$110.00
489. GB/T 21171-2018Technical terms of fragrances and flavors$130.00
490. GB/T 21172-2022Sensory analysis - Guidelines for sensory assessment of the colour of products$245.00
491. GB/T 21179-2026Recycled nickel and nickel alloy raw materials$200.00
492. GB/T 21181-2025Secondary lead ingots$120.00
493. GB/T 21182-2022Scraps of cemented carbide$155.00
494. GB/T 21183-2017Zirconium and zirconium alloy sheet, strip and foil$130.00
495. GB/T 21186-2026Fourier transform infrared spectrometers$365.00
496. GB/T 21187-2026Atomic absorption spectrophotometers$320.00
497. GB/T 21199-2024Dry developer for laser printers$280.00
498. GB/T 21200-2024Toner used in dry dual-component developer for laser printers$280.00
499. GB/T 21202-2018Digital multi-function monochrome electrostatic copying(printing) devices$300.00
500. GB/T 21203-2018Information technology -- Office equipment -- Method for measuring digital copying productivity$480.00