BS 6730:1986

Foreword
Committees responsible
Specification
1. Scope
2. Definitions
3. Dimensions and tolerances
4. Compound composition
5. Physical properties
6. Type test requirements
7. Marking
Appendices
A. Method for the determination of ovality
B. Method for the determination of a toluene extract
    of carbon black
C. Method for the measurement of the extinction
    coefficient of the cyclohexane extract of carbon
    black at lambda = 386 nm
D. Method for the determination of volatile matter
    from carbon black
E. Conditioning
F. Method for the determination of induction
    temperature
G. Method for the preparation of test pieces for the
    determination of elongation at break
H. Method for the analysis of results from the
    determination of the long-term hydrostatic strength
    of pipe at 20 deg C
J. Quality control testing
Tables
1. Pipe dimensions
2. Out-of-square tolerances for ends
3. Coil diameters
4. Carbon black characteristics
5. Dimensions of punched test piece
6. Failure point distribution
7. Percentage points of Student's t distribution
    (upper 2 1/2 % points)
Figures
1. Types of failure
2. Example of DSC trace
3. Punched test piece

Small sizes of pipe in metric series diameters to complement use of pipes in accordance with BS 6572 where greater resistance to external light and weathering is required. Not for use below ground, to avoid confusion with buried power cables with black plastics sheathing.