The standards of Ammonium Metatungstate testing mainly include the following aspects, which will be indicated and summarized in points according to a clear format below:
National standards of ammonium metatungstate testing
GB/T 26033-2010: This is the national standard on ammonium metatungstate, which stipulates the requirements, test methods, inspection rules, marking, packaging, transportation, storage and quality certificate of ammonium metatungstate.
Chemical analysis methods for testing ammonium metatungstate
GB/T 23368.1-2009: This is part 1 of the chemical analytical method for ammonium metatungstate, which is mainly related to the determination of the amount of water-insoluble substance, using the weighing method.
GB/T 23368.2-2009: This is the 2nd part of the chemical analysis method for ammonium metatungstate, which stipulates the determination of zinc amount, specifically using flame atomic absorption spectrometry.
Other relevant standards for ammonium metatungstate detection
GB/T 3207-2016: although this is not a standard specifically for ammonium metatungstate, it is a general standard on the field of tungsten products and may contain quality requirements related to ammonium metatungstate.
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