QUESTION:

What is the difference between compression set suffix B2 and B3 in ASTM-D1056?

ANSWER:

B2 requires a maximum set of 25% B3 allows a maximum set of 35% – John Bonforte, Sr.

People who wanted to learn about ASTM-D1056 were also interested in referencing ASTM 1056 MRPC PRESENTATION 2009 [PDF] – Understanding ASTM D1056 – American Society For Testing Materials D1056 (ASTM D1056); and ASTM D 1056 Explained [PDF]