ISO 911:1977废止
Sulphuric acid for industrial use; Evaluation of sulphuric acid concentration by measurement of density
出版：International Organization for Standardization
专家解读视频
1ED 1977
UNE 55593:1981 (R1999) - Identical
BS 753:1987 - Similar
JIS K 1321:1994 - Equivalent
NFT 20 251 : 1968 - Similar to
NBN T 03 017 : 1979 - Identical
UNE 55593 : 81(R1999) - Identical
BS 753(1987) : 1987 - Similar to
NBN T 03 017 : 1979 - Identical
NFT 20 251 : 1968 - Similar to
UNE 55593 : 81(R1999) - Identical
