BS 5421-1:1976

Foreword
Cooperating organizations
Methods
1 Scope and field of application
2 References
3 Conditioning of samples or test pieces
4 Count
5 Metric yield
6 Density
7 Tensile strength
8 Elongation at break
9 Stress at pre-determined elongation
10 Elongation under a specified load
11 Stress retention
12 Accelerated ageing test on rubber in a relaxed state
13 Ribbons: degree of adhesion between threads
Figures
1 Apparatus for cutting test pieces (Method A)
2 Apparatus for cutting test pieces (Method B)
3 Apparatus for determination of tensile strength
4 Apparatus for determination of stress at pre-
    determined elongation
5 Apparatus for determination of elongation under a
    specified load
6 Apparatus for determination of stress retention

Conditioning of samples or test pieces, count, metric yield, density, tensile strength, elongation at break, stress at predetermined elongation, elongation under a specific load, stress retention, accelerated ageing test on rubber threads in a relaxed state; ribbons: degree of adhesion between threads.