Photography. Processing chemicals. Specifications for sodium tetraborate decahydrate PAS 15 PAS 278:2015 is aimed at

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Photography. Processing chemicals. Specifications for sodium tetraborate decahydrate PAS 15 PAS 278:2015 is aimed at1 Scope This International Standard establishes criteria for the purity of photographic grade sodium tetraborate decahydrate and specifies the tests to be used to determine the purity.