Browse Standards
Found: 152810 — page 3176 of 3184
Valid
SJ/Z 2091-1982 — Information processing interchange--Arrangement and interface of usual control and function keys of 7-bit coded character set keyboard
National·Recommended
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$365.008 pages
Valid
SJ/Z 2165-1982 — Typical calculations for single-phase power transformers and filter chokes using C-cores
National·Recommended
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$1,100.0065 pages
Valid
DZ 4-1981 — Geological Instrument Model methodology
National·Mandatory
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$445.008 pages
Superseded
GB 2424.6-1981 — Environmental testing - Part 3: Supporting documentation and guidance - Confirmation of the performance of temperature/humidity chambers
National·Mandatory
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$165.0013 pages
Valid
GB 2463-1981 — Pyrites and concentrate -- Determination of total iron content -- Cerium sulfate volumetric and potassium dichromate volumetric methods
National·Mandatory
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$165.006 pages
Valid
GB 2466-1981 — Pyrites and concentrate -- Determination of copper content -- Flame atomic absorption spectrometric and spectrophotometric methods
National·Mandatory
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$165.005 pages
Valid
GB 2467-1981 — Pyrites and concentrate -- Determination of lead content -- Flame atomic absorption spectrometric and EDTA volumetric methods
National·Mandatory
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$165.006 pages
Valid
GB 2468-1981 — Pyrites and concentrate -- Determination of zinc content -- Flame atomic absorption spectrometric and spectrophotometric methods
National·Mandatory
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$165.006 pages
Valid
GB 2670-1981 — Hexalobular socket pan head tapping screws
National·Mandatory
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$94.004 pages
Valid
GB 2679.2-1981 — Sheet materials -- Determination of water vapour transmission rate -- Gravimetric (Dish) method
National·Mandatory
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$169.006 pages
Valid
GB 2715-1981 — Hygienic standard for grains
National·Mandatory
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$165.008 pages
Valid
GB 694-1981 — Chemical reagent -- Sodium acetate anhydrous
National·Mandatory
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$165.007 pages
Valid
GB/T 2426-1981 — Livestock and poultry breed (synthetic lines) - Xinjiang finewool sheep
National·Recommended
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$224.008 pages
Valid
GB/T 2432-1981 — Gasoline--Determination of tetraethyl lead content. Complexometric titration method
National·Recommended
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$80.007 pages
Valid
GB/T 2541-1981 — Petroleum products--Computation table for viscosity indices
National·Recommended
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$12,650.00708 pages
Valid
GB/T 2625-1981 — Process detection and controlflow chart--Symbols and letter codes
National·Recommended
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$125.0015 pages
Valid
GB/T 2683-1981 — Test chart for facsimile transmission
National·Recommended
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$55.0015 pages
Valid
GB/T 2689.1-1981 — Constant stress life tests and acceleration life tests. General rules
National·Recommended
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$164.004 pages
Valid
GB/T 2689.2-1981 — Life test and acceleration life test charts. Evaluation of their Weibull distributions
National·Recommended
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$264.006 pages
Valid
GB/T 2689.3-1981 — Life test and acceleration life test. Simple linear deflection-free. Evaluation of Weibull distributions
National·Recommended
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$234.005 pages
Valid
GB/T 2689.4-1981 — Life test and acceleration life test. Optimal linear deflection-free. Evaluation of Weibull distributions
National·Recommended
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$264.006 pages
Valid
GB/T 2880-1981 — Hydraulic fluid power--Cylinder rod and piston seals for reciprocating applications--Dimensions andtolerances of housings--Narrow section series
National·Recommended
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$115.0015 pages
Valid
HG 3285-1981 — Crude oil of isodaoblast (former HG-2-1418-81)
National·Mandatory
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$165.0015 pages
Valid
HG 3286-1981 — Net emulsifiable oil of isodaoblast (former HG-2-1419-81)
National·Mandatory
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$165.0015 pages
Valid
HG/T 3204-1981 — Graphite pipe threaded series
Industry·Recommended
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$165.0015 pages
Valid
HG/T 3324-1981 — Water Supply Rubber Hose for Railway Steam Locomotive
Industry·Recommended
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$209.0015 pages
Valid
HG/T 3553-1981 — Analysis method of chemical composition of combined alcohol and low-temperature shift catalyst
Industry·Recommended
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$285.0015 pages
Valid
HG/T 3554-1981 — Analytical method for the chemical composition of the ammonia synthesis catalyst
Industry·Recommended
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$445.0015 pages
Valid
JB 2949-1981 — Specification of industrial and mining electric locomotive pantograph
National·Mandatory
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$234.005 pages
Valid
JB/T 2765-1981 — Valves - Terminology
Industry·Recommended
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$749.0031 pages
Valid
JB/T 2933-1981 — Industrial and mining electric locomotives - Product type designation method
Industry·Recommended
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$175.0015 pages
Valid
JB/T 2949-1981 — Pantographs for industrial and mining electric locomotives - Technical specifications
Industry·Recommended
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$85.0015 pages
Valid
SJ 1822-1981 — Preferred fine-pitch straight bevel gears
National·Mandatory
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$105.006 pages
Valid
SJ 659-1981 — Hermetically sealed high-voltage compound dielectric capacitors for Type CH81
National·Mandatory
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$185.008 pages
Valid
SJ 660-1981 — Hermetically sealed high-voltage compound dielectric capacitors for Type CH82
National·Mandatory
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$105.008 pages
Valid
SJ/Z 1758-1981 — Typical calculations for 400Hz three-phase power transformers using E-cores
National·Recommended
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$500.0029 pages
Valid
SJ/Z 1762-1981 — Typical calculations for 50Hz single-phase power tranformers and filter choke using C-cores
National·Recommended
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$950.0049 pages
Valid
SJ/Z 1763-1981 — Typical calculations for 50Hz three-phase power transformers using E-cores
National·Recommended
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$385.0020 pages
Valid
SJ/Z 1792-1981 — Electrical performance requirements for assembling of special equipment for electronic industry
National·Recommended
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$209.004 pages
Valid
SJ/Z 1850-1981 — Design for medium and low-duty audio transformers
National·Recommended
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$2,300.00113 pages
Valid
SJ/Z 1941-1981 — General specification for machining operation of special equipment for electronic industry
National·Recommended
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$25.001 pages
Valid
GB 1919-1980 — Potassium hydroxide for industrial use
National·Mandatory
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$245.0013 pages
Valid
GB 2017-1980 — Covering technique of the medium-wave broadcastingnetwork
National·Mandatory
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$225.0015 pages
Valid
GB 2290-1980 — Coal tar pitch
National·Mandatory
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$165.004 pages
Valid
GB 2312-1980 — [GB/T 2312-1980] Code of chinese graphic character set for information interchange--Primary set
National·Mandatory
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$2,300.0015 pages
Valid
GB/T 1762-1980 — Method of test for after-tack of paint films
National·Recommended
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$65.004 pages
Valid
GB/T 1900-1980 — National food safety standards of food additives dibutyl hydroxy toluene (BHT)
National·Recommended
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$164.006 pages
Valid
GB/T 1989-1980 — Methods for indication of the 7-bit encoding character set for information processing switching on 12.7mm magnetic tape
National·Recommended
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$89.003 pages