BS 4508-4:1977
Current
The latest, up-to-date edition.
Thermally insulated underground pipelines Specific testing and inspection requirements for cased systems without air gap
Hardcopy , PDF
English
06-30-1977
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Foreword
Cooperating organizations
Specification
1 Scope
2 References
3 Definitions
4 General
5 Type tests and inspections
6 Production inspections and tests
7 Test failure interpretation
8 System approvals
Appendix
A Soil conductivity data
Figures
1 Joint testing apparatus to simulate actual operating
conditions
2 Physical variations during a four-hour test cycle
3 Test rig for the determination of system pressure-
tightness
Testing, inspection and certification of pipe-in-pipe distribution systems with an insulated service or product pipe enclosed in a pressure-tight casing.
| Committee |
B/540
|
| DevelopmentNote |
Supersedes 75/70904 DC (08/2005) Reviewed and confirmed by BSI, November 2012. (10/2012)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This Part of BS 4508 specifies specific requirements for the testing, inspection and certification of pipe-in-pipe systems with an insulated service or product pipe enclosed in a pressure-tight casing; general requirements are specified in Part 3.
Data on soil conductivity are given in Appendix A.
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