1 Scope
2 Normative references
3 Terms and definitions
4 Safety
5 Principle
6 Test equipment
7 Calibration
8 Apparatus
9 Test Measurements
9.1 Measurements in the field
9.2 Measurements in the laboratory
10 Field sampling
11 Test procedure
12 Calculations
13 Precision
14 Test report
Annex A (normative) Validation of the performance of the
pendulum tester
A.1 Validation of the performance of the Pendulum Tester
A.1.1 General
A.1.2 Procedure
A.2 Calibration of the pendulum friction tester
A.2.1 Weighing of components
A.2.2 Balancing of the pendulum arm assembly
A.2.3 Setting the effective spring tension
A.2.4 Setting the pointer stop
A.3 Details of scales
Annex B (informative) Typical composition of CEN slider rubber
Annex C (informative) Typical test report
Annex D(informative) A-deviations