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www.ChineseStandard.net Database: 189760 (1 Nov 2025)

GB/T 12938-1991

Chinese Standard: 'GB/T 12938-1991'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
GB/T 12938-1991English559 Add to Cart Days<=3 Determination of thiosulphate and other residual chemicals in processed photographic materials. Iodine-amylose, methylene blue and silver sulphide densitometric methods GB/T 12938-1991   GB/T 12938-1991

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