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GB/T 12938-1991 Determination of thiosulphate and other related residual chemicals in processed Photographic materials－Iodine-amylose, methylene blue and silver sulphide densitometric methods $210.00 via email in 1~3 business day valid
GB/T 20432.1-2006 Photography―Photographic-grade chemicals―Test methods―Part 1: General $105.00 via email in 1~3 business day valid
GB/T 20432.10-2007 Photography—Photographic-grade chemicals—Test methods—Part 10:Determination of sulfide content $60.00 via email in 1~3 business day valid
GB/T 20432.11-2007 Photography—Photographic-grade chemicals—Test methods—Part 11:Determination of specific gravity $60.00 via email in 1~3 business day valid
GB/T 20432.12-2008 Photography - Photographic-grade chemicals - Test methods - Part 12: Determination of density $30.00 via email in 1~3 business day valid
GB/T 20432.13-2007 Photography—Photographic-grade chemicals—Test mehtods—Part 13:Determination of pH $85.00 via email in 1~3 business day valid
GB/T 20432.2-2007 Photography—Photographic-grade chemicals—Test methods—Part 2:Determination of matter insoluble in water $60.00 via email in 1~3 business day valid
GB/T 20432.3-2008 Photography - Photographic-grade chemicals - Test methods - Part 3: Determination of matter in ammonium hydroxide solution $90.00 via email in 1~3 business day valid
GB/T 20432.4-2006 Photography―Photographic-grade chemicals―Test methods―Part 4: Determination of residue after ignition $85.00 via email in 1~3 business day valid
GB/T 20432.5-2007 Photography—Photographic-grade chemicals—Test methods—Part 5:Determination of heavy metals and iron content $85.00 via email in 1~3 business day valid
GB/T 20432.6-2008 Photography - Photographic-grade chemicals - Test methods - Part 6: Determination of halide content $60.00 via email in 1~3 business day valid
GB/T 20432.7-2007 Photography—Photographic-grade chemicals—Test methods—Part 7:Determination alkalinity or acidity $60.00 via email in 1~3 business day valid
GB/T 20432.8-2007 Photography—Photographic-grade chemicals—Test methods—Part 8:Determination of volatile matter $85.00 via email in 1~3 business day valid
GB/T 20432.9-2007 Photography—Photographic-grade chemicals—Test methods—Part 9:Reaction to ammoniacal silver nitrate $60.00 via email in 1~3 business day valid
GB/T 20433-2006 Photography―Processing chemicals―Specifications for ammonium thiosulfate solution $90.00 via email in 1~3 business day valid
GB/T 22398-2008 Photography - Processing chemicals - Specifications for potassium hydroxide $100.00 via email in 1~3 business day valid
GB/T 22399-2008 Photography - Processing chemicals - Specifications for Sodium hydroxide $150.00 via email in 1~3 business day valid
GB/T 22401-2008 Photography - Processing chemicals - Specifications for anhydrous sodium metabisulfite $150.00 via email in 1~3 business day valid
GB/T 22402-2008 Photography - Processing chemicals - Specifications for anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate $100.00 via email in 1~3 business day valid
GB/T 22403-2008 Photography - Processing chemicals - Specifications for anhydrous potassium carbonate $150.00 via email in 1~3 business day valid
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