This standard specifies the content determination method of weighing the standard titration solution or reference solution with a balance, and determining the end point by indicator titration. The precision of this method is 0.03%, and the total uncertainty is ±0.05%. This standard is applicable to the content determination of the working reference reagent (capacity) with a content of 99.95% to 100.05%.
GB 10738-1989 history
2007GB 10738-2007 Working chemical.General rules for assay.Weight titration
1989GB 10738-1989 Working chemical--General rules for the weight titration