BS 6437:1984

Foreword
Committees responsible
Specification
1. Scope
2. Definitions
3. Designation, category and class
4. Dimensions and tolerances
5. Compound composition
6. Pipe material
7. Hydrostatic properties
8. Physical and mechanical characteristics
9. 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. Method for the determination of the long term hydro-
    static strength of pipe at 20 deg C
F. Method of ageing for the resistance to weathering
    of unpigmented pipes
G. Method for the determination of elongation at break
Tables
1. Pipe dimensions
2. Coil diameters
3. Melt flow rate tolerances
4. Carbon black characteristics
5. Hydrostatic pressure conditions
6. Elongation at break
7. Failure point distribution
8. Values of Student's t distribution (upper 2 1/2 %
    points)
9. Dimensions of punched test piece
10. Number of strips for a given diameter of pipe
11. Dimensions of machined test piece
Figures
1. Punched test piece
2. Machined test piece

Requirements for composition, dimensions, performance and marking for polyethylene pipes in metric diameters for general purposes, including use in the food and chemical industries.