Plastic material classifications & specifications
Use complete material callouts and referring customer requirements. D4000 classification and resin-specific PP, PE and PA documents organize material requirements; they do not validate every finished product. Grades, additives, reinforcement, moisture and process history must be documented, not inferred.
Sample considerations
- ASTM D4000: Exact resin family, classification callout, suffixes and required properties
- ASTM D4101: PP grade, reinforcement, conditioning and complete material callout
- ASTM D4976: PE grade, density/flow requirements and material callout
- ASTM D4066: Nylon chemistry, reinforcement, moisture state and complete callout
- ASTM D955: Mold dimensions, resin, process and measurement time