BS EN 14125:2013 pdf download

BS EN 14125:2013 pdf download.Thermoplastic and flexible metal pipework for underground installation at petrol filling stations.
5.4.2 Bend radius test
This requirement applies to all pipes and in-line connectors,
When tested in accordance with 7.2.5. a sample of pipes and straight connectors selected in accordance with 7.1.1 and 7.1.2 shall:
show no visible sign & leakage or cracking;
when tested in accordance with 7.1.3 show no signs of leakage and, where vacuum testing is specified, show no signs of collapse.
The srple of pipes chosen in accordance with 7.1.1 shall include that pipe diameter for which the bending d
strain is greatest The bending strain is equal to where d is the outer diameter of the pipe and R the
2R
bending radius specified by the manufacturer.
5.4,3 Impact test
This requirement applies to all pipes and fittings
When tested in accordance with 7.2.6. a sample of pipes and fittings selected in accordance with 7.1.1 and 7.1.2 shall:
show no visible sign of leakage or cracking; in Type B pipes there shall be no through-thickness damage to any protective coating;
when tested in accordance with 7.1.3 show no signs of leakage and, where vacuum testing is specified, show no signs of collapse.
5.4.4 Puncture test
This requirement applies to all pipes.
When tested in accordance with 7.2.7, a sample of pipes selected In accordance with 7.1.1 and 7.12 shall. show no visible sign of leakage or cracking;
when tested in accordance with 7.1.3 show no signs of leakage and, where vacuum testing is specified, show no signs of collapse
5.4.5 Ptil test
This requirement applies to all pipes and straight connectors intended for positive pressure and vacuum suction applications.
When tested in accordance with 7.2.11, a sample of pipes and straight connectors selected in accordance with 7.1.1 and 7.12 and connected to pipes to forni assemblies, shall’
show no visible sign of slippage;
when tested in accordance with 7.1.3 show no signs of leakage and, where vacuum testing is specified, show no signs of collapse
The samples of pipes and fittings chosen in accordance with 7.1.1 shall include those with the lowest diameter and those with the lowest diameter > 63 mm.
The resistance per unit length shall indude the effect of one coupling, More information about electrostatic hazards can be found in Annex B and EN 13463-1.
5.6,2 Requirements for 1suIating plastic pipe systems
To avoid pin holing insulating plastic pipe should have an electrical breakthrough strength across the pipe exceeding 100 ky measured in accordance with EN 60243-2 A polyethylene layer of at least 4 mm in thickness usually exceeds this breakthrough strength.
5.6.3 Requirements for plastic pipe systems with conductive or dissipative linings
The conductive liners or conductive layers shall encirde the whole pipe profile and shall be securely electrostatically connected with each other and electrostatically grounded.
5.7 Weathering
Three assemblies consisting of two sections of pipe of minimum length 375 mm and pined by a straight connector shall be preconditioned in accordance to a cumulative solar radiation of  3,5 GJ.n,2 using natural weathering in accordance with EN ISO 16871 or artificial weathering by using method A, cycte 1 of Table 3 of EN ISO 4892-2:2013. After exposure the assembly shall show no vistble signs of cracking when tested in accordance with 7.2.6. If black PE material Is used to manufacti.we pipe and fittings according to EN 1555-1 to EN 1555-5 and EN 12201-1 to EN 12201-5, this requirement shall be considered as fulliled.
5.8 Corrosion resistance
All metallic parts that are designed to be directly buried in the round shall be tested in accordance with EN ISO 11306 by exposure to water and surface sea water to establish the effectiveness of corros*on resistance for an expected life period of 3.0 years. In addition an assessment shall be made to ensure that adequate external corrosion resistance exists in respect to damage caused by stray electrical currents for the same period of time. The coating of the pipework shaM be tested for integrity and holidays with 5 kV mm’ thickness of the coating, but with not more than 20 kV.
NOTE For cathodic protection, see EN 13636.