JB/T 9499.6-1999 Method for chemical analysis of constantan resistance alloy The sulphosalicylic acid photometric method for the determination of iron content (English Version)
This standard applies to the determination of iron content in constantan resistance alloys. Measuring range: 0.020% ~ 0.50%.
JB/T 9499.6-1999 history
1999JB/T 9499.6-1999 Method for chemical analysis of constantan resistance alloy The sulphosalicylic acid photometric method for the determination of iron content