This document specifies the requirements, test methods, inspection rules and markings and accompanying documents, packaging, transportation and storage of bis(3,4,6-trichloro-2-pentyloxycarbonylphenyl) oxalate (CPPO). This document applies to bis(3,4,6-trichloro-2-pentyloxycarbonylphenyl) oxalate (CPPO) produced by the reaction of n-amyl trichlorosalicylate with oxalyl chloride.