Standards

GB/T 1775-2009 Replaced

GB/T 1775-2009 Superfine gold powder

This standard specifies the requirements for ultra-fine gold powder, testing methods, inspection rules, and marking, packaging, transportation, storage, and the contents of purchase orders (or contracts), etc.
This standard applies to ultra-fine gold powder used in electronic pastes.

Publish Date: 2009-01-05

GB/T 1776-2009 Replaced

GB/T 1776-2009 Superfine platinum powder

This standard specifies the requirements for ultra-fine platinum powder, testing methods, inspection rules, and marking, packaging, transportation, storage, and the contents of purchase orders (or contracts), etc.
This standard applies to ultra-fine platinum powder used in the electronics industry.

Publish Date: 2009-01-05

GB/T 1777-2009 Replaced

GB/T 1777-2009 Superfine palladium powder

This standard specifies the requirements for ultra-fine palladium powder, test methods, inspection rules, and marking, packaging, transportation, storage, and the content of purchase orders (or contracts), etc.
This standard applies to palladium powder used in electronic pastes and other products.

Publish Date: 2009-01-05

GB/T 23271-2009 Replaced

GB/T 23271-2009 Molybdenum disulfide

This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, and the content of purchase orders (or contracts) for molybdenum disulfide.
This standard applies to molybdenum disulfide products produced by either natural or synthetic methods.

Publish Date: 2009-01-05

GB/T 23276-2009 Replaced

GB/T 23276-2009 Method for chemical analysis of palladium compounds—Determination of palladium content—Complexometric titration using butanedione dioxime releasing EDTA

This standard specifies the method for determining the palladium content in palladium compounds.
This standard is applicable to the determination of palladium content in compounds such as palladium dichloride (PdCl2), palladium bromide (PdBr2), palladium nitrate dihydrate (Pd(NO3)2·2H2O), palladium sulfate (PdSO4), palladium sulfate dihydrate (PdSO4·2H2O), palladium dichloride diammonium (Pd(NH3)2Cl2), palladium tetrachloride diammonium (Pd(NH3)4Cl2), potassium palladium chloride (K2PdCl4), palladium nitrite diammonium (Pd(NO2)2(NH3)2), palladium nitrite tetrammonium (Pd(NO2)2(NH3)4), palladium acetate ([Pd(CH3COO)2]3), palladium bis(acetylacetone) (Pd(C5H7O2)2), palladium tetra(trifenylphosphine) (Pd［P(C6H5)3］4), palladium dichloride bis(trifenylphosphine) (PdCl2［P(C6H5)3］2), and 1,2-bis(trifenylphosphine) ethane dichloride (PdCl2［(C6H5)2PCH2CH2P(C6H5)2］). The measurement range is 5% to 70%.

Publish Date: 2009-01-05

GB/T 3249-2009 Replaced

GB/T 3249-2009 Test method for Fisher number of metal powders and related compounds

1.1 This method uses the principle of air permeability to determine the surface area of metal and its compound powders, as well as the average equivalent spherical particle diameter related to them (range 0.5μm to 50μm). The powders can be tested in their "supply state" or after being dispersed or milled by the laboratory in accordance with the provisions of ASTM B 859. The measured values may not fully reflect the actual condition of the powders, but they are very useful for powder quality control.
1.2 This standard does not address related safety issues. Users should establish appropriate safety and health operating procedures and determine their scope of application before using it.

Publish Date: 2009-01-05

GB 10351-2008 Replaced

GB 10351-2008 Food additive—Oil of eucalyptus,containing 80% cineole

This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, and shelf life for eucalyptus oil with an eucalyptol content of 80% used as a food additive.
This standard is applicable to the analysis and evaluation of the quality of eucalyptus oil with an eucalyptol content of 80% produced from the essential oils of Eucalyptus globulus Labill. or certain species of cinnamon trees containing eucalyptol as raw materials through distillation processing and used as a food additive.

Publish Date: 2008-12-03

GB 10783-2008 Replaced

GB 10783-2008 Food additive—Paprika red

This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage requirements for the food additive chili red.
This standard applies to chili red made from chili fruit peels and their products, which are extracted, filtered, concentrated, and de-capsaicinized through various processes. The color value can be adjusted with edible fats.

Publish Date: 2008-12-03

GB 11960-2008 Replaced

GB 11960-2008 Food additive—Oil of spearmint

This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, and shelf life for the food additive peppermint oil.
This standard is applicable to the analysis and evaluation of the quality of peppermint (Mentha spicata Linnalus) oil as a food additive.

Publish Date: 2008-12-03

GB 1916-2008 Replaced

GB 1916-2008 Food additive—Butylated hydroxyanisole

This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and shelf life of the food additive tert-butyl-4-hydroxyanisole.
This standard applies to the compound (referred to as BHA) produced by the reaction of hydroxyanisole or hydroquinone with tert-butanol.

Publish Date: 2008-12-03

GB 1976-2008 Replaced

GB 1976-2008 Food additive—Sodium alginate

This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, and storage of the food additive sodium alginate (sodium alginic acid).
This standard applies to sodium alginate (sodium alginic acid) extracted and processed from brown algae such as kelp (Laminaria), kelp (Natans), giant kelp (Macrocystis), and bladderwrack (Ascophyllum), which is used as a food additive.

Publish Date: 2008-12-03

GB 22558-2008 Replaced

GB 22558-2008 Food additive—Erythorbic acid

This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, and shelf life of the food additive D-isoascorbic acid.
This standard applies to the food additive D-isoascorbic acid, which is produced from raw materials such as glucose by fermentation to obtain 2-keto-D-glucaric acid, and then through esterification, acidification, and refining steps.

Publish Date: 2008-12-03