Deutsches Institut fur Normung e. V.

Above-ground tanks, apparatus and piping made of thermoplastics - Guide to quality assurance
 N DVS 2231

Annotation

Scope of application

This quality assurance concept applies to above-ground tanks, apparatus and piping made of thermoplastics with and without internal pressure loading and/or dangers to people and the environment. It can also be correspondingly applied to comparable thermoplastic components and structures. In principle, it must be clarified in advance whether any and, if necessary, which legal regulations (e. g. Pressure Device Directive, Water Resources Act, Operational Safety Ordinance etc.), standards or delivery agreements apply to the component. Additional quality assurance measures may be demanded in these. Furthermore, the contracting parties may agree upon deviations from this quality assurance concept. The expedient test procedure(s) must be chosen according to the execution, operating stresses and application concerned.

In principle, the contracting parties must stipulate the type and scope of the quality-assuring measures as well as their timing.

The quality assurance concept may be applied not only by the inhouse production control / quality assurance of the contractor but also by external testers and inspectors (e. g. of the customer or of any third parties commissioned by him).

Автоматический перевод:

Надземные контейнеры, аппараты и трубопроводы из термопластических пластмасс - руководство для управления качеством продукции