BS ISO 21069-2:2008

Foreword
Introduction
1 Scope
2 Terms and definitions
3 Symbols
4 Test conditions and evaluations
  4.1 General
  4.2 Preparation of vehicle and roller brake tester
  4.3 Calculation and evaluation of test data
  4.4 Presentation of results
Annex A (normative) Technical requirements of roller
        brake tester
Annex B (informative) Periodic inspection of equipment
        and its documentation
Bibliography

Describes a procedure that generates comparable measurement results in roller brake testing, such that the efficiency of the service braking system can be assessed reliably wherever the roller brake tests are performed.

This part of ISO21069 describes a procedure that generates comparable measurement results in roller brake testing, such that the efficiency of the service braking system can be assessed reliably wherever the roller brake tests are performed.

The following items are covered in this part of ISO21069:

• symbols and definitions;

• test methods;

• test conditions;

• test equipment required;

• accuracy of test equipment;

• data recording and calculation needed;

• presentation of results;

• assessment criteria for pass/fail.

The procedure described in this part of ISO21069 is not applicable to passenger cars.