GB 7493-1987
Water quality-Determination of nitrogen (nitrite)-Spectrophotometric method (English Version)

Standard No.

GB 7493-1987

Language

Chinese, Available in English version

Release Date

1987

Published By

中华人民共和国环境保护部

Latest

GB 7493-1987

GB 7493-1987 history

• 1987 GB 7493-1987 Water quality-Determination of nitrogen (nitrite)-Spectrophotometric method