Constructability

In ASTM C 836, change the hardness measurement test from an ASTM D 2240 type OO durometer to a type A durometer.

In ASTM C 836, standardize the period and temperature of conditioning prior to all tests. Create classes of products in ASTM C 836; consider allowing the multi-component class of materials to be tested without oven curing.

Durability

Current requirements for crack bridging related properties should be reviewed; however, it does not appear that changes are required.