SN EN 31427:1994现行
Determination Of Silver In Silver Jewellery Alloys - Volumetric (potentiometric) Method Using Potassium Bromide
出版：Swiss Standards
专家解读视频
Specifies a volumetric method for the determination of silver in silver jewellery alloys. Coverage includes reagents, apparatus and procedure.
EN 31427:1994 - Identical
ONORM EN 31427:1994 - Identical
BS EN 31427:1994 - Identical
NBN EN 31427:1994 - Identical
I.S. EN 31427:1994 - Identical
UNI EN 31427:1997 - Identical
NF EN 31427:1995 - Identical
SS EN 31427 Ed. 1 (1994) - Identical
UNE EN 31427:1996 - Identical
ISO 11427:1993 - Identical
DIN EN 31427 (1995-04) - Identical
