ISO 456:1973现行
Surface active agents - Analysis of soaps - Determination of free caustic alkali
出版：International Organization for Standardization
专家解读视频
NBN T 63 102:1980 - Identical
DIN 52802 (1979-07) - Identical
JIS K 3301:1985 - Equivalent
JIS K 3304:2006 - Equivalent
NEN ISO 456:1983 - Identical
UNE 55901:1985 (R1999) - Identical
BS 1715:1963 - Similar
PN ISO 456:2000 - Identical
BS 1715-2.3:1989 - Equivalent
NFT 60 306:1976 - Equivalent
UNI 26021:1995 - Identical
