- Published: January 1977
- Reapproved: 2001
- REF/ISBN: IP055-2935231
Overview:
Scope
This method describes a procedure for determination of the melting point of petroleum wax (cooling curve). It is unsuitable for waxes of the petrolatum group, the petroleum ceresin group, or to blends of such waxes with paraffin wax or scale.
NOTE 1: For additional methods used for testing petroleum waxes, see Method ASTM D127-IP 133, Drop Melting Point of Petroleum Wax, including Petrolatum, and Method D938-IP 76, Congealing Point of Petroleum Waxes, including Petrolatum. Results may differ depending on the method used. For pharmaceutical petrolatum, Method D938-IP 76 usually is used.
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