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ASTM D1957 86th Edition, 1990
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Standard Test Method for Hydroxyl Value of Fatty Oils and Acids
Includes all amendments and changes through Reapproval Notice , 2001
Additional Comments: W/D NO S/S
Page Count:3
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This test method covers the determination of the hydroxyl content of castor oil, dehydrated castor oil, and their derivatives. This test method may also be used for other fatty products such as fatty alcohols, mono- and diglycerides, and hydroxystearic acid, but the precision will not necessarily be as indicated.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 6.