ISO 4321:1977现行
Washing powders - Determination of active oxygen content - Titrimetric method
出版：International Organization for Standardization
专家解读视频
KS M ISO 4321:2003 - Identical
NFT 73 703:1977 - Equivalent
PN 92/C-04816:1992 - Identical
BS 3762-3.17:1983 - Equivalent
UNE 55546:1979 (R1998) - Identical
NEN ISO 4321:1983 - Identical
JIS K 3362:1998 - Equivalent
DIN ISO 4321 (1982-04) - Identical
NBN T 63 137:1980 - Identical
JIS K 3362:2008 - Equivalent
