Significance and Use
Ground coal is commonly used as an inexpensive filler in rubber compounds as a direct or partial replacement for carbon black or as a diluent in the compound.
Ground coal is very compatible with most rubbers and is very easily mixed into the compound.
1. Scope
1.1 This classification covers the compounding material known as ground coal. It is generally used in rubber compounds as a filler.
1.2 There are three grades of ground coal based on particle size, ash, and moisture. The selected values for these properties are suitable for use in a rubber compound.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
C1070 Test Method for Determining Particle Size Distribution of Alumina or Quartz by Laser Light Scattering
D1208 Test Methods for Common Properties of Certain Pigments
D3174 Test Method for Ash in the Analysis Sample of Coal and Coke from Coal
D3175 Test Method for Volatile Matter in the Analysis Sample of Coal and Coke
D4371 Test Method for Determining the Washability Characteristics of Coal
Keywords
filler; ground coal;
ICS Code
ICS Number Code 83.040.20 (Rubber compounding ingredients)
DOI: 10.1520/D5377-93R12
ASTM International is a member of CrossRef.
Citing ASTM Standards
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