Cookies
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 - Chinese national standards - Page 7249
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
Price display: excl. VAT
Displayed currency:
USD
Sort by:
GB/T 2590.2-1981
WITHDRAWN
Show all technical information.
Zirconium and hafnium oxides--Determination of iron content--Sulfosalicylic acid photometric method
WITHDRAWN published on 7.6.1981
Selected format:Show all technical information.
GB/T 2590.3-1981
WITHDRAWN
Show all technical information.
Zirconium and hafnium oxides--Determination of silicon content--Silicon-molybdenum blue photometric method
WITHDRAWN published on 7.6.1981
Selected format:Show all technical information.
GB/T 2590.4-1981
WITHDRAWN
Show all technical information.
Zirconium and hafnium oxides--Determination of aluminium content--Chromazurol S-tetradecyl pyridine chloride photometric method
WITHDRAWN published on 7.6.1981
Selected format:Show all technical information.
GB/T 2590.5-1981
WITHDRAWN
Show all technical information.
Zirconium and hafnium oxides--Determination of sodium content--Flame atomic absorption spectrophotometric method
WITHDRAWN published on 7.6.1981
Selected format:Show all technical information.
GB/T 2590.6-1981
WITHDRAWN
Show all technical information.
Zirconium and hafnium oxides--Determination of titanium content--Diantipyrymethane photometricmethod
WITHDRAWN published on 7.6.1981
Selected format:Show all technical information.
GB/T 2590.7-1981
WITHDRAWN
Show all technical information.
Zirconium and hafnium oxides--Determination of phosphorus content--Ascorbic acid reduced molybdoantimonyl phosphoric acid absorption photometric method
WITHDRAWN published on 7.6.1981
Selected format:Show all technical information.
GB/T 2590.8-1981
WITHDRAWN
Show all technical information.
Zirconium oxide--Determination ofhafnium oxide content--Emission spectrophotometric method
WITHDRAWN published on 7.6.1981
Selected format:Show all technical information.
GB/T 2590.9-1981
WITHDRAWN
Show all technical information.
Hafnium oxide--Determinationof zirconium oxide content--X-ray fluorescence spectrometric method
WITHDRAWN published on 7.6.1981
Selected format:Show all technical information.
GB 2591.1-1981
WITHDRAWN
Show all technical information.
Determination of iron content in bastnaesite concentrates
WITHDRAWN published on 1.1.1981
Selected format:Show all technical information.
GB 2591.2-1981
WITHDRAWN
Show all technical information.
Determination of niobium content in bastnaesite concentrates
WITHDRAWN published on 1.1.1981
Selected format:Show all technical information.
Can we help you with something?
