We can perform following evaluation on polymers and elastomers in the context of exposure testing:
- Visual evaluations:
- Macroscopic and stereomicroscopic evaluation of the surface
- Assessment of changes in color and gloss based on colorimetric measurements
- Assessment of swelling by weight and dimensional changes (ASTM D5947)
- Assessment of changes in mechanical properties:
- Microhardness
- Shore A or D hardness according to ASTM D2240
- Cracking in a zone with additional stresses imposed
- Standard practices for evaluating the resistance of plastics to chemical reagents (ASTM D543)
