The test methods in this standard are used to determine the chemical composition in natural and synthetic crude rubbers. There are two categories of test methods used:
- General tests – used to identify the type and amount of chemical components that exist in a rubber product and identifies the rubber polymer content (via ASTM D792)
- Specific tests – used to identify specific rubber polymers that are present in a rubber product including crude, unvulcanized, reclaimed, and vulcanized rubbers
General test methods are covered in Part A of the standard. They are listed as the following:
- Rubber Polymer Content by Indirect Method (via ASTM D792)
- Determinations and Report for the General Method
- Extract Analysis
- Sulfur Analysis
- Fillers Analysis
- Ash Analysis
Specific test methods are covered in Part B of the standard and include Determination of Rubber Polymers.
*Please Note: The information outlined above is to be used as reference ASTM D297 Standard Test Method for Rubber Products – Chemical Analysis. Please refer to ASTM International for full details and the most current revision.