We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Workplace air—Determination of chloropicrin—Naphthyl ethylenediamine dihydrochloride spectrophotometric method
WITHDRAWN published on 23.1.1996
Selected format:Workplace air—Determination of nitrobenzene—Naphthyl ethylenediamine dihydrochloride spectrophotometric method
WITHDRAWN published on 23.1.1996
Selected format:Workplace air—Determination of molybdenum and its compounds—Thiocyanate spectrophotometric method
WITHDRAWN published on 23.1.1996
Selected format:Workplace air-Determination of tungsten or tungsten carbide-Potassium thiocyanate-titanous trichloride spectrophotometric method
WITHDRAWN published on 23.1.1996
Selected format:Workplace air—Determination of vanadium pentoxide—N-cinnamoyl-o-tolyl-hydroxylamine spectrophotometric method
WITHDRAWN published on 23.1.1996
Selected format:Workplace air-Determination of sodium hydroxide-Acidimetric method
WITHDRAWN published on 23.1.1996
Selected format:Workplace air—Determination of sodium hydroxide—Flame photometric method
WITHDRAWN published on 23.1.1996
Selected format:Workplace air—Determination of zirconium and its compounds—Xylenol orange spectrophotometric method
WITHDRAWN published on 23.1.1996
Selected format:Workplace air—Determination of hydrogen chloride and hydrochloric acid—Mercuric rhodanate spectrophotometric method
WITHDRAWN published on 23.1.1996
Selected format:Sodium dichiomate for industrial use
WITHDRAWN published on 1.9.1992
Selected format:Latest update: 2025-11-09 (Number of items: 2 243 571)
© Copyright 2025 NORMSERVIS s.r.o.