ASTM D4574 – Standard Test Methods for Rubber Compounding Materials—Determination of Ash Content
Description:
Significance and Use
5.1 These test methods are suitable for the determination of the ash content of rubber compounding materials. The test methods may be used for quality control, product acceptance, or research and development. Classification D4676 prescribes percent ash as an important characteristic of rubber antidegradants.
Scope
1.1 These test methods cover the determination of ash content of rubber chemicals.
1.2 The test methods include the following materials:
| Material | Section |
| Sulfur | 7 – 13 |
| p-Phenylenediamine Antioxidants | 14 – 22 |
| Benzothiazole Sulfenamide Accelerators | 14 – 22 |
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
ASTM D4567