This specification covers the three grades of 1,1,2- trichloro 1,2,2 trifluoroethane typically needed in various industries. This may be a reference for 1,1,2-trichloro 1,2,2- trifluoroethane recovery programs. The three classifications are as follows: Type I - generally recognized for use in precision applications; Type II - used for less demanding precision applications; and Type III - general-purpose technical grade. Materials shall be tested and the individual grades shall conform to specified values of specific gravity, chloride content, acid number, non-volatile residue content, water content, 1,1,2-trichloro 1,2,2- trifluoroethane content, 1,1,1- trichloroethane content, color, and appearance.