This Part of EN 12666 gives guidance for the assessment of conformity to be included in the manufacturer's quality plan as part of the quality system.
This Technical Specification includes:
a) requirements for materials, components, joints and assemblies given in EN 12666-1;
b) requirements for the manufacturer's quality system;
NOTE 1 It is recommended that the quality system conforms to EN ISO 9001:2000[1].
c) definitions and procedures to be applied if third party certification is involved.
NOTE 2 If third party certification is involved, it is recommended that the certification body is accredited to EN 45011[2] or EN 45012[3], as applicable.
It is applicable to piping systems made of polyethylene (PE) in the field of non-pressure underground drainage and sewerage outside the building structure (application area code "U") and for non-pressure underground drainage and sewerage for both buried in the ground within the building structure (application area code "D") and outside the building structure. This is reflected in the marking of products by "U"and "UD".