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ASTM D1387

1989 Edition, May 26, 1989

Complete Document

Standard Test Method for Saponification Number (Empirical) of Synthetic and Natural Waxes

Includes all amendments and changes through Reapproval Notice , 2012


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Product Details:

  • Revision: 1989 Edition, May 26, 1989
  • Published Date: January 2012
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 2
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This test method covers the determination of the saponification number of synthetic waxes and natural waxes.

This test method is applicable to Fischer Tropsche, microcrystalline, polyethylene, and Montan Ester waxes.

Certain synthetic waxes, notably copolymers of ethylene, exhibit poor reproducibility when running saponification values. Reproducibility can be improved if cooking time in 7.2 is extended from 3 h to 18–20 h.

Some oxidized polyethylene and other waxes with a melt temperature above 100°C may give poor reproducibility.

Some dark-colored (Gardner Color 14) waxes may obscure the color change of the indicator, resulting in poor reproducibility.

The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.