BS 4832:1987

National foreword
Committees responsible
Specification
0. Introduction
1. Scope and field of application
2. References
3. Definitions
4. Test elastomers
5. Determination of elastomer compatibility index (ECI)
6. Identification statement
Annexes
A. Prediction of percentage change in volume of
    commercial rubbers in mineral-based oils
B. Rapid method for indicating the effect of mineral-
    based oils on elastomers by measuring volume change
    index (VCI)
C. Information report
Tables
1. Composition by mass of standard acrylonitrile-
    butadiene rubber (NBR 1)
2. Control tests for NBR 1
3. Composition by mass of standard fluoroelastomer
    (FPM 1)
4. Control tests for FPM 1
5. Composition by mass of standard ethylene propylene
    diene rubber (EPDM 1)
6. Control tests for EPDM 1
7. Test conditions for determination of elastomer
    compatibility index (ECI)
8. Conversion table for converting percentage linear
    swell (SD) into percentage volumetric change (SV)
Figures
1. Analytical balance for weighing in air and water
2. Relationship between percentage change in volume
    of commercial rubbers in mineral oils and of
    standard rubber NBR 1
3. Tapered rod gauge

Procedures to evaluate the effect of mineral based and fire-resistant hydraulic fluids upon three basic types of elastomeric compositions by measurement, under controlled conditions, of physical properties of standard test pieces of the appropriate test elastomer before and after immersion in the fluids.