"The guideline provides the processor of semi-finished products made from thermoplastics and the user of the products with instructions for testing welded joints. This guideline covers the plastics mainly used in apparatus and pipeline construction. The requirements for the parts 2 to 5 are listed here test methods covered by this guideline (tensile test, impact tensile test, creep tensile test, technological bending test)."
DVS 2203-1-1986 Referenced Document
DIN 50014:1985 Climates and their technical application; standard atmospheres