ISO 3705:1976 工业用硫.砷含量的测定.二乙基二硫代氨基甲酸银光度法

标准编号：ISO 3705:1976

中文名称：工业用硫.砷含量的测定.二乙基二硫代氨基甲酸银光度法

英文名称：Sulphur for industrial use — Determination of arsenic content — Silver diethyldithiocarbamate photometric method

发布日期：1976-09

标准范围

适用于砷含量等于或大于0.5 mg/kg的产品。在通风良好的橱柜中，测试部分在四氯化碳中的溶解。用溴和硝酸氧化硫。在沸水浴中加热，以消除溴、四氯化碳和硝酸的排放。根据ISO 2590进行分析。应注意某些试剂的更换。

Applicable to products having As contents equal or more than 0.5 mg/kg. In a well-ventilated cupboard, dissolution of a test portion in carbon tetrachloride. Oxidation of sulphur by bromine and nitric acid. Heating in a boiling water bath to eliminate the exess of bromine, carbon tetrachloride and nitric acid. The analysis is carried out according to ISO 2590. The replacement of some reagents shall be noted.

标准预览图