DIN 18800-4:1990 Structural steelwork; analysis of safety against buckling of shells
DIN 4740-1:1984 Ventilation plants; unplasticized polyvinylchloride (PVC-U) pipes; calculation of the minimium wall thickness
DIN 8061:1994 Unplasticized polyvinyl chloride pipes - General quality requirements and testing
DIN 8062:1988 Unplasticized polyvinyl chloride (PVC-U, PVC-HI) pipes; dimensions
DIN 8078:1996 Polypropylene (PP) pipes - PP-H (Type 1), PP-B (Type 2), PP-R (Type 3) - General quality requirements and testing
DIN EN 1778 Characteristic values for welded thermoplastic constructions - Determination of allowable stresses and moduli for design of thermoplastic equipment; German version EN 1778:1999*， 1999-12-01 Update
2008DVS 2205-2 Beiblatt 2-2008 "Calculation of tanks and apparatus made of thermoplastics - Vertical round, non-pressurised tanks - Collecting devices"