标准编号:	GB 4920-1985
中文名称:	硫酸浓缩尾气硫酸雾的测定 铬酸钡比色法
英文名称:	Determination of Sulphuric Acid Mist in Tail Gas in Sulphuric Acid Concentration Process - Barium Chromate Colorimetric Method
中标分类:	Z25    废气排放污染物分析方法
行业分类:	GB    国家标准
ICS分类:	13.040.50 13.040.50    移动源排放限值 13.040.50
发布机构:	国家环境保护总局
发布日期:	1985-01-18
实施日期:	1985-8-1
标准状态:	valid
翻译语言:	英文
文件格式:	PDF

This standard is applicable to the analysis of sulphuric acid mist in tail gas in sulphuric acid concentration process in fire-explosive factory, and the test range is 100~30000mg /m3. 1 Principle Sulfate ions will react with barium chromate and generate yellow chromate ions, and the colorimetric measurement is carried out according to the degree of yellow color.

1 Principle 2 Instruments 3 Reagents 4 Operations 5 Calculations 6 Attentions Additional Explanations: