BS CP312-3(1973) : 1973
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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CODE OF PRACTICE FOR PLASTICS PIPEWORK (THERMOPLASTICS MATERIAL) - POLYETHYLENE PIPES FOR THE CONVEYANCE OF LIQUIDS UNDER PRESSURE
10-12-2010
23-11-2012
Foreword
1. General
1.1 Scope
1.2 Classification of polyethylenes
2. Working pressure and effects of temperature
3. Limitations
4. Flow properties
5. Jointing procedures
5.1 General
5.2 Metal fittings
5.3 Plastics fittings
5.4 Thermofusion welding
6. Bending
6.1 Cold bending
6.2 Hot bending
7. Storage, handling and transport
7.1 Storage
7.2 Handling
7.3 Transport
8. Inspection
9. Installation
9.1 General
9.2 Installation of buried pipes
9.3 Above ground installations
9.4 Support spacings
9.5 Expansion and contraction
10. Test pressures and testing
10.1 Hydrostatic test pressures
10.2 Hydrostatic testing
11. Repairs
Tables
1. Reduction in working pressures for polyethylene
pipes at elevated temperatures
2. Recommended spacing of support centres for
horizontal polyethylene pipes
Figure
1. Heated tool for fusion welding
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