The potassium permanganate consumption of the tin cans coated with epoxy phenolic coatings as the protective layer was detected according to the national standard of GB/T 5009.60-2003 method for analysis of hygienic standard of products of polyethylene, polystyrene and polypropyrene for food packaging. The method required accurate titer of potassium permanganate standard solution, and was not suitable for daily rapid detection. The test method adjusted the concentration of potassium permanganate solution and determined the value of f instead of the titration process of the standard solution. By the data analysis of two kinds of test conditions, the creditability and feasibility of the test method was ensured. The results showed that there was no significant difference between the test results and the national standard method results, and because of convenience and easy operation of the method,and the test method was more suitable for routine detection of enterprises.

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