BS ISO 4930:2006

Foreword
1 Scope
2 Normative references
3 Product requirements
4 Brake test fluid
5 Apparatus
   5.1 Apparatus for test of resistance to fluid at
        elevated temperature, physical stability and
        precipitation characteristics
   5.2 Apparatus for high-temperature stroking test
   5.3 Apparatus for low-temperature leakage test
6 Test requirements
7 Preparation of test specimens
8 Resistance to fluid at elevated temperature
   8.1 Test specimens
   8.2 Test procedure
9 Resistance to fluid at elevated temperature -
   Precipitation characteristics
   9.1 Test specimens
   9.2 Test procedure
10 Resistance to elevated temperature in dry air
   10.1 Test specimens
   10.2 Test procedure
11 Ambient-temperature stroking test
   11.1 Test specimens
   11.2 Test procedure
12 High-temperature stroking test
   12.1 Test specimens
   12.2 Test procedure
13 Low-temperature leakage test
   13.1 Test specimens
   13.2 Test procedure
   13.3 Bent test procedure
14 Cycling humidity storage corrosion test
   14.1 Test specimens
   14.2 Test procedure

Prescribes the performance test methods and requirements for elastomeric seals used in road vehicle disc brake cylinders.

This International Standard specifies the performance test methods and requirements for elastomeric seals used in road vehicle disc brake cylinders.

It is applicable to solid section type seals (square, rectangular, “O??-ring), mounted stationary in the cylinder bore or on the movable piston of disc brakes.