1. ASTM D790-71 standard test method for flexural properties of plastics;American Society for Testing and Materials,1971
2. ANSI/ASTM D256-78 standard test methods for impact resistance of plastics and electrical insulating materials;American Society for Testing and Materials,1978
3. ASTM D638-M-84 standard test method for tensile properties of plastic (metric);American Society for Testing and Materials,1984
4. BS 2782 determination of Charpy impact strength of rigid materials,1984
5. BS 2487 specification of denture base polymers,1989