Exploration of the 56％sulfuric acid method for quantitative analysis of silk/wool blended products
In order to ensure the accuracy and efficiency of fiber content analysis on silk/wool blended products,com-parative experiments were conducted to analyze the feasibility of using the 56％sulfuric acid method for the quantitative analysis of such blended textiles.The experimental results indicate that the mass correction factor d for wool in a 56％sulfuric acid solution is 1.00.The extreme differences in the content measured by the 56％sulfuric acid method compared to the 75％sulfuric acid method,35％hydrochloric acid method,and formic acid/zinc chloride method are all less than 3％,which complies with the fiber content tolerance described in GB/T 29862-2013.The experiment demonstrates that the use of the 56％sulfuric acid method for the quantitative analysis of silk/wool blended products is feasible.
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