NS EN 903 Ed. 1 (1993)现行
Water Quality - Determination Of Anionic Surfactants By Measurement Of The Methylene Blue Index Mbas
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
ALSO NUMBERED AS BS 6068: SECTION 2.23: 1994. Describes how natural and synthetic anionic surface active substances may be determined as methylene-blue active substances (MBAS). Mentions the MBAS index, a summary parameter method. Coverage includes reagents, apparatus and procedure.
Supersedes NS 4739. (04/2008)
UNE EN 903:1994 - Identical
SS EN 903 Ed. 1 (1994) - Identical
ISO 7875-1:1996 - Identical
UNI EN 903:1995 - Identical
NF EN 903:1994 - Identical
NBN EN 903:1994 - Identical
I.S. EN 903:1994 - Identical
NEN EN 903:1994 - Identical
DIN EN 903 (1994-01) - Identical
ONORM EN 903:1994 - Identical
BS EN 903:1994 - Identical
