康铜电阻合金化学分析方法 磺基水杨酸光度法测定铁量
Method for chemical analysis of constantan resistance alloy The sulphosalicylic acid photometric method for the determination of iron content
1999-08-06
JB/T 9493.4-1999
锰铜和新康铜电阻合金化学分析方法 磺基水杨酸光度法测定铁量
Method for chemical analysis of manganin and novokostant resistance alloy The sulphosalicylic acid photometric method for the determination of iron content
1999-08-06
YS/T 568.2-2008
氧化锆、氧化铪化学分析方法 铁量的测定 磺基水杨酸分光光度法
Chemical analysis methods for zirconium oxide and hafnium oxide—Determination of iron content—Sulfosal icylic acid spectrophotometric method
2008-03-12
YS/T 574.2-2009
电真空用锆粉化学分析方法 磺基水杨酸分光光度法测定铁量
Methods for chemical analysis of zirconium powder for electro-vacuum uses—The sulfosalicylic acid spectrophotometric method for determination of iron
2009-12-04
YS/T 254.2-2011
铍精矿、绿柱石化学分析方法 第2部分:三氧化二铁量的测定 EDTA滴定法、磺基水杨酸分光光度法
Methods for chemical analysis of beryllium concentrate and beryl— Part 2：Determination of ferric oxide content— EDTA titrimetry and sulfosalicylic acid spectrophotometry