Can anyway advise what the differen

[Truds]

Can anyway advise what the difference if any is of ASTM F36a and ASTM F36j. Can find anything anywhere. They appear to give out different results in gasket materials ?

 

[Gr8blu]

ASTM F36 is a standardized method of testing for gasket materials: the intent is to define both compressibility and recovery. There are multiple testing sequences (A thru K); which one is chosen is based primarily on the material being tested. If you need more detail, go to the ASTM Standards store at

https://www.astm.org/f0036-15r21.html

and pick up the most current (2021 edition) of the standard for $50 US.

Converting energy to motion for more than half a century

 

[Truds]

Thanks I will check it out.