This Part of EN 1519 gives guidance for the assessment of conformity to be included in the manufacturer'squality plan as part of the quality system.This prestandard includes: a) requirements for materials, components, joints and assemblies given in EN 1519-1:1999; b) requirements for the manufacturer's quality system; NOTE 1 It is recommended that the quality system conforms to EN ISO 9001, as applicable. 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 or EN 45012, as applicable.This Part of EN 1519 is applicable to solid-wall piping systems made of polyethylene (PE) in the field of soil andwaste discharge (low and high temperature)- inside buildings (application area code "B") and - inside buildings and buried in ground within the building structure (application area code "BD").