ASTM D4817-88(2005)
Standard Classification for Rubber Compounding Materials-Stearic Acid
- Standard No.
- ASTM D4817-88(2005)
- Release Date
- 1988
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D4817-88(2012)
- Latest
- ASTM D4817-88(2021)
- Scope
Stearic acid is important in the rubber vulcanization process. It is believed that the stearic acid reacts with zinc-oxide or other metallic oxides, during vulcanization, to form a rubber soluble salt or soap, that reacts with the accelerator enabling it to exert its full effect.
Stearic acid of commerce is generally a mixture of palmitic, stearic, and oleic acids usually derived from tallow base stock but can be derived from other fats and oils of animal or vegetable origins.
1.1 This classification covers the compounding materials commercially known as stearic acid.
1.2 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.
ASTM D4817-88(2005) Referenced Document
- ASTM D1466 *， 1995-01-01 Update
- ASTM D1951 *， 1995-01-01 Update
- ASTM D1959 *， 1997-01-01 Update
- ASTM D1962 Standard Test Method for Saponification Value of Drying Oils, Fatty Acids, and Polymerized Fatty Acids*， 1995-01-01 Update
- ASTM D1965 *， 1998-01-01 Update
- ASTM D1980 *， 1998-01-01 Update
- ASTM D1982 Standard Test Method for Titer of Fatty Acids
- ASTM D1983 *， 1995-01-01 Update
- ASTM D4075 Standard Test Methods for Compounding Materials-Flame Atomic Absorption Technique-Determination of Metals
ASTM D4817-88(2005) history
- 2021 ASTM D4817-88(2021) Standard Classification for Rubber Compounding Materials—Stearic Acid
- 2017 ASTM D4817-88(2017) Standard Classification for Rubber Compounding Materials—Stearic Acid
- 1988 ASTM D4817-88(2012) Standard Classification for Rubber Compounding Materialsmdash;Stearic Acid
- 1988 ASTM D4817-88(2005) Standard Classification for Rubber Compounding Materials-Stearic Acid
- 1988 ASTM D4817-88(1999) Standard Classification for Rubber Compounding Materials-Stearic Acid
