DIN 38409-20 标准详情
- 标准号:DIN 38409-20
- 中文标题:
- 英文标题:German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of substances that react with disulfine blue (H 20)
- 标准类别:德国标准DIN
- 发布日期: