BS EN 25663:1993现行
Water quality. Determination of Kjeldahl nitrogen. Method after mineralization with selenium
出版：British Standards Institution
专家解读视频
Applicable to raw, potable and waste waters for concentrations up to 1000 mg/1 of nitrogen.
© British Standards Institution 2013
UNE EN 25663:1994 - Identical
SS EN 25663 Ed. 1 (1994) - Identical
ISO 5663:1984 - Identical
UNI EN 25663:1995 - Identical
NF EN 25663:1994 - Identical
I.S. EN 25663:1994 - Identical
NBN EN 25663:1994 - Identical
DIN EN 25663 (1993-11) - Identical
ONORM EN 25663:1993 - Identical
