ISO 3122:1976废止
Boric acid, boric oxide, disodium tetraborates, sodium perborates and crude borates for industrial use; Determination of iron content; 2,2'- Bipyridyl photometric method
出版：International Organization for Standardization
专家解读视频
1ED 1976 [01/04/1976]
BS 5688-17:1979 - Equivalent
NFT 20 562:1985 - Equivalent
NFT 20 561:1985 - Equivalent
UNE 55568:1980 (R1998) - Identical
NFT 20 565:1985 - Equivalent
NFT 20 563:1985 - Equivalent
NFT 20 564:1985 - Equivalent
