Browse Standards
Found: 34078 — page 279 of 710
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GB/T 7731.1-2021 — Ferrotungsten—Determination of tungsten content—Cinchonine gravimetric method and ammonium nitrate gravimetric method
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GB/T 7731.10-2021 — Ferrotungsten—Determination of carbon content—Infrared absorption method
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GB/T 7731.4-2021 — Ferrotungsten—Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometric method
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GB/T 7731.5-2021 — Ferrotungsten—Determination of silicon content—Silicomolybdenum blue spectrophotometric method
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GB/T 7739.4-2021 — Methods for chemical analysis of gold concentrates—Part 4: Determination of copper content
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GB/T 7739.5-2021 — Methods for chemical analysis of gold concentrates—Part 5: Determination of lead content
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GB/T 7739.6-2021 — Methods for chemical analysis of gold concentrates—Part 6: Determination of zinc content
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GB/T 7777-2021 — Measurement and evaluation of mechanical vibration of displacement compressors
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GB/T 7925-2021 — NC reciprocating traveling type wire electrical-discharge machines—Parameters
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GB/T 794-2021 — Strenthened cup head square neck bolts
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GB/T 798-2021 — Eye bolts
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GB/T 7991.3-2021 — Test method of viterous and porcelain enamels—Part 3: Determination of resistance to thermal shock
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GB/T 8-2021 — Square head bolts—Product grade C
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GB/T 8013.4-2021 — Anodic oxide coatings and organic polymer coatings on aluminium and its alloys—Part 4: Texture coatings
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GB/T 8013.5-2021 — Anodic oxide coatings and organic polymer coatings on aluminium and its alloys—Part 5: Function coatings
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GB/T 8130-2021 — Erhualian pig
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GB/T 8145-2021 — Gum rosin
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GB/T 8151.24-2021 — Methods for chemical analysis of zinc concentrates—Part 24: Determination of soluble zinc content—Flame atomic absorption spectrometry
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GB/T 8152.15-2021 — Methods for chemical analysis of lead concentrates—Part 15:Determination of soluble lead content—Flame atomic absorption spectrometry
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GB/T 8361-2021 — Ultrasonic testing method for the surface of cold drawn round steel
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GB/T 8472-2021 — Beijing black pig
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GB/T 8563.1-2021 — Classification and codes for information of reward and disciplinary action—Part 1: Codes of medal, honorary title and reward
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GB/T 8563.3-2021 — Classification and codes for information of reward and disciplinary action—Part 3: Codes of disiplinary action and organizational punishment
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GB/T 8601-2021 — Forged and rolled solid wheels for railway
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GB/T 8618-2021 — Sampling methods of the main products in salt making industry
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GB/T 8749-2021 — Hot-rolled quality carbon structural steel strip
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GB/T 8887-2021 — Classification of starch
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GB/T 9089.1-2021 — Electrical installations for outdoor sites under heavy conditions—Part 1: Vocabulary
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GB/T 9098-2021 — Hermetic motor-compressors for refrigerators
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GB/T 9142-2021 — Building construction machinery and equipment - Concrete mixers
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GB/T 9143-2021 — Commercial coal quality—Coal for fixed-bed gasification
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GB/T 9481-2021 — Axial-flow pump of medium-small size
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GB/T 9491-2021 — Flux for tin soldering
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GB/T 9578-2021 — Industry reference carbon black 4#
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GB/T 9966.10-2021 — Test methods for natural stone—Part 10: Determination of resistance to shaking for individual stone anchoragest
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GB/T 9966.11-2021 — Test methods for natural stone—Part 11: Determination of resistance to ageing by cold and thermal shock
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GB/T 9966.12-2021 — Test methods for natural stone—Part 12:Determination of static elastic modulus
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GB/T 9966.13-2021 — Test methods for natural stone—Part 13: Determination of water absorption coefficient by capillarity
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GB/T 9966.14-2021 — Test methods for natural stone—Part 14: Determination of rupture energy
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GB/T 9966.15-2021 — Test methods for natural stone—Part 15: Determination of resistance ageing by salt mist
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GB/T 9966.16-2021 — Test methods for natural stone—Part 16: Determination of linear thermal expansion coefficient
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GB/T 9966.17-2021 — Test methods for natural stone—Part 17: Determination of resistance to salt crystallization
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GB/T 9966.18-2021 — Test methods for natural stone—Part 18: Petrographic examination
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GB/T 9966.9-2021 — Test methods for natural stone—Part 9: Determination of the dynamic modulus of elasticity by measuring the fundamental resonance frequency
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GB/T 999-2021 — Voltage ratings of DC electric traction system
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GB/Z 12414-2021 — Pharmaceutical glass tube
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GB/Z 13800-2021 — Manual wheelchairs
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GB/Z 30661.1-2021 — Wheelchair seating - Part 1: Vocabulary, reference axis convention and measures for body segments, posture and postural support surfaces
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