Changelog for the datasheet Grooved gasket B7A / B9A / B15A with unsintered PTFE Layers 4.5 mm
Revision:	3 (current version)
Date:		2018-09-21
Changes:
Specified thickness corrected. 

Revision:	2
Date:		2014-02-20
Changes:
Specified thickness corrected.
Leakage values updated.
Corrected mechanical values (PQR).

Revision:	1
Date:		2014-01-20
Changes:
Converted to new datasheet layout.
Additional leakage values.
Additional tests temperatures.
Editorial changes.

Revision:	0
Date:		2008-09-20
Changes:
First version (Revision 0)