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Investment QC tests


These are the tests used in the QC of casting investments (in
addition to vicat and slump tests):

Vaccum test Green strength test Surface tension test Fired strength test
permeability test

Does anybody has any standard procedures to run those tests / direct
me to a source?. Thanks in advance.

Kayce Chidambaram Ph.D.
Principal R&D Chemical Engineer
The Bell Group
7500 Bluewater Road NW
Albuquerque NM 87121-1962
Tel: (505) 839-3523
Fax: (505) 839-3525