
Surface active agents - Determination of the total polyethylene glycol content of non-ionic surface active agents (EO adducts) by HPLC/GPC
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
NEN EN 12139:1999 - Identical
SS EN 12139 Ed. 1 (1999) - Identical
UNE EN 12139:1999 - Identical
NS EN 12139 Ed. 1 (1999) - Identical
I.S. EN 12139:1999 - Identical
UNI EN 12139:2001 - Identical
NF EN 12139:1999 - Identical
BS EN 12139:1999 - Identical
SN EN 12139:1999 - Identical
NBN EN 12139:1999 - Identical
ONORM EN 12139:1999 - Identical