GB/T 638-2018
Chemical reagent—Stannous chloride dihydrate
GB/T 638-2018
Chemical reagent-Tin(IV) chloride pentahydrate
GB/T 638-2018
Stannous chloride for industrial use
GB/T 638-2018
Chemical reagent—Tin(Ⅱ) Chloride dihydrate
GB/T 638-2018
铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法
GB/T 638-2018
Determination of toxic substances in workplace air-Part 27: Dibutyltin dilaurate,trimethyltin chloride and triethyltinchloride
GB/T 638-2018
Iron ores - Determination of total iron content - Titrimetric method after tin(Ⅱ) chloride reduction
GB/T 638-2018
Determination of trimethyltin chloride (TMT) in urine——Part2:Gas chromatographic–mass method
GB/T 638-2018
GB/T 638-2018
Tin(Ⅳ) chloride pentahydrate
GB/T 638-2018
Determination of trimethyltin chloride (TMT) in urine-Part1:Gas chromatographic method
GB/T 638-2018
Chemical reagent—Tin(Ⅱ) chloride dihydrate
GB/T 638-2018
Determination of trimethyltin chloride (TMT) in blood-Part 1:Gas chromatographic method
GB/T 638-2018
GB/T 638-2018
Chemical reagent Tin(Ⅳ)chloride pentahydrate
GB/T 638-2018
Food contact materials for export-Polymers-Certain epoxy derivatives subject to limitation-Determination of NOGE and its hydroxy and chlorinated derivatives
GB/T 638-2018
Food contact materials - Polymers - Determination of BADGE,BFDGE and their hydroxy and chlorinated derivatives in food simulants - Liquid chromatography-tandem mass spectrometry
GB/T 638-2018
Urine—Determination of mercury—Cold atomic absorption spectrometric method—I Alkaline stannous chloride reduction method
GB/T 638-2018
Food contact materials for export-Polymers-Determination of BADGE、BFDGE and their hydroxy and chlorinated derivatives in food simulants-High performance liquid chromatography
GB/T 638-2018
Essential oils — Determination of carbonyl value — Potentiometric methods using hydroxylammonium chloride