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Specific Gravity of Friction Material
- Ground Vehicle Standard
- J380_200908
- Reaffirmed
Sector:
Issuing Committee:
Language:
English
Scope
Specific gravity is a nondestructive test used as a quality control check of the consistency of formulation and processing of brake lining. The specific gravity and the range of specific gravity are peculiar to each formulation and, therefore, the acceptable values or range must be established for each formulation by the manufacturer. Specific gravity alone shows nothing about a materials in use performance.
The specific gravity of sintered metal powder friction materials, particularly those which have steel backing members, is usually determined somewhat differently. Reference ASTM B 376.
Rationale
Update to include current practice, range of sample size and all friction material.
Recommended Content
| Ground Vehicle Standard | Brake Lining Quality Test Procedure |
| Technical Paper | Four Tests for Consistency of Automotive Brake Linings |
| Technical Paper | The role of raw material ingredients of brake linings on the formation of transfer film and friction characteristics |
Topic
Data Sets - Support Documents
No Datasets Available
Issuing Committee
Brake Linings Standards Committee
The goal of the Brake Lining Standards Committee is to provide a means of developing and maintaining common test and nomenclature standards for the friction materials industry. In working toward this goal, the committee helps reduce industry costs, harmonize global markets and enhance safety by recommending uniform test and performance standards for automotive friction materials.
Reference
| Number | Title |
|---|---|
| ASTMB376 | This document is not part of the subscrption. |
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