GB 7494-1987
Water quality-Determination of anionic surfactants-Methylene blue spectrophotometric method (English Version)

Standard No.

GB 7494-1987

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 7494-1987

GB 7494-1987 history

• 1987 GB 7494-1987 Water quality-Determination of anionic surfactants-Methylene blue spectrophotometric method