This standard specifies a method for testing chemical products for impurities by coloring produced by reaction with sulfuric acid. Remarks 1. Chemical products refer to all substances produced by chemical reactions, but if an individual standard specifies a test method that differs from this standard, it shall apply. 2. Some chemical products are highly volatile, explosive, radioactive, etc., and safety cannot be ensured when using the methods specified in this standard. This test method should only be applied to products whose safety has been sufficiently confirmed in advance.
JIS K 0072:1998 history
1998JIS K 0072:1998 Testing method of colour after treatment with sulfuric acid