This Malaysian Standard gives guidance for the assessment of conformity intended to be included in the manufacturer's quality plan as part of the quality system.
This standard includes:
a) Requirements for materials, components, joints and assemblies given in MS 628 series of standard.
b) Requirements for the manufacturer's quality system; and
c) Definitions and procedures to be applied if third party certification is involved.
It is applicable to joints and assemblies with components of PVC-U, other plastics and non-plastics materials intended to be used for the following:
a) water mains and services buried in ground;
b) conveyance of water above ground for both outside and inside buildings;
c) buried and above-ground drainage and sewerage under pressure;
It is applicable to piping systems intended for the supply of water under pressure up to and including 25 °C (cold water) intended for human consumption and for general purposes as well as for waste water under pressure