Standard Practice for Generic Marking of Plastic Products

ASTM D 1972 Standard Practice for Generic Marking of Plastic Products  

Note abbreviations for mineral powder (MD), flame retardants (FR), glass fiber (GF). Presence of a flame retardant is indicated by FR. The FR should be followed by the code number to identify the flame retardant. 

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Standard Practice for Generic Marking of Plastic Products ASTM International 1992-1997 ASTM International 100 Barr Harbor Drive PO Box C700 W. Conshohocken, PA 19428-2959 Tel 610-832-9585 Fax 610-832-9555 http //www. astm. o rg... 

ASTM International also has a standard for plastics identification, D1972, Standard Practice for Generic Marking of Plastic Products. It provides for a triangle with the resin identification below. For the most part, standard resin abbreviations are used these are tabulated in the standard. Copolymers and blends are identified with the two base polymers separated by a slash. ... 

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