BS 7291-1:2006 Thermoplastics pipes and associated fittings for hot and cold water for domestic purposes and heating installations in buildings - General requirements
This part of BS 7291 specifies general requirements and methods of test
for thermoplastics pipes and associated fittings intended for use within
buildings for the conveyance of water under pressure, for distribution of
hot and cold water, including drinking water, and for circulation of hot
water for heating purposes.
These systems are also suitable for the conveyance of cold water for
a period of 50 years at a temperature of 20 °C and a design pressure of
12? bar.
This British Standard is applicable only to Class “S” pipes and fittings.
Details of the specific applications and service conditions are given in
Table 1.
This specification is applicable to rigid or flexible plain pipes, and pipes
incorporating a polymeric barrier to inhibit gas permeability through the
pipe wall and having a nominal outside diameter up to and including
110 mm.
NOTE 1 Methods of test and guidance on quality control testing are given
in the annexes.
NOTE 2 BS 7291-2 and BS 7291-3 specify additional requirements for
pipes and/or fittings manufactured from specific thermoplastics materials.
They should be read in conjunction with this part of BS 7291.
NOTE 3 Reference to “pressure” in this part of BS 7291 means “gauge
pressure”, unless otherwise stated.
NOTE 4 Where the pipe or fitting is of a thermoplastics material covered
by a part of BS 7291-1, BS 7291-2 or BS 7291-3, either the requirements for
preventing or controlling the extent of permeation specified in the
applicable part, e.g. by use of a barrier pipe, should be followed, or a
corrosion inhibitor should be added to the primary circuits in accordance
with BS 5955-8.
BS 7291-1:2006 history
2023BS 7291-1:2010+A1:2023 Thermoplastics pipe and fitting systems for hot and cold water for domestic purposes and heating installations in buildings - General requirements
2010BS 7291-1:2010 Thermoplastics pipe and fitting systems for hot and cold water for domestic purposes and heating installations in buildings - General requirements
2006BS 7291-1:2006 Thermoplastics pipes and associated fittings for hot and cold water for domestic purposes and heating installations in buildings - General requirements
2001BS 7291-1:2001 Thermoplastics pipes and associated fittings for hot and cold water for domestic purposes and heating installations in buildings - General requirements