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ASTM D1387-89(2012)

Historical Reaffirmation

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

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

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

1.3 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.

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

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

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

1.7 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.


4.1 This test method is used to determine the property of ester functionality. Ester functionality determines the utility of the wax as well as being a significant quality control test.

SDO ASTM: ASTM International
Document Number D1387
Publication Date Oct. 1, 2012
Language en - English
Page Count 2
Revision Level 89(2012)
Supercedes
Committee D21.02
Publish Date Document Id Type View
Not Available D1387-84 Revision
July 1, 2019 D1387-89R19 Reaffirmation
Oct. 1, 2012 D1387-89R12 Reaffirmation
Oct. 1, 2007 D1387-89R07 Reaffirmation
Jan. 1, 1995 D1387-89R95E01 Reaffirmation
May 26, 1989 D1387-89R02 Reaffirmation