BS EN ISO 20028-1:2019 PDF

Scope: What is ISO 20028-1 - Designation system of Thermoplastic polyester about? ISO 20028-1 is the first part of the multi-series ISO 20028 that establishes a system of designation for thermoplastic polyester (TP) material, which can be used as the basis for specifications. It covers polyester homopolymers for moulding and extrusion-based on poly (ethylene terephthalate) (PET), poly (butylene terephthalate) (PBT), poly (cyclohexylenedimethylene terephthalate) (PCT), poly (ethylene naphthalate) (PEN), poly (butylene naphthalates) (PBN) and other TP-types and copolyesters of various compositions for moulding and extrusion. The types of thermoplastic polyester are differentiated from each other by a classification system based on appropriate levels of the designatory properties: Viscosity number Tensile modulus of elasticity ISO 20028-1 is applicable to thermoplastic polyester homopolymers and copolymers. It applies to materials ready for normal use in the form of powder, granules, or pellets, unmodified or modified by colorants, fillers, and other additives. ISO 20028-1 does not apply to the saturated polyester/ester and polyether/ester thermoplastic elastomers. NOTE: ISO 20028-1 is not intended to imply that materials having the same designation give necessarily the same per...

BS EN ISO 20028-1:2019 history

2019 BS EN ISO 20028-1:2019 Plastics. Thermoplastic polyester (TP) moulding and extrusion materials - Designation system and basis for specification
2017 BS EN ISO 20028-1:2017 Plastics. Thermoplastic polyester (TP) moulding and extrusion materials. Designation system and basis for specifications
2012 BS EN ISO 7792-1:2012 Plastics. Thermoplastic polyester (TP) moulding and extrusion materials. Designation system and basis for specifications
0000 BS EN ISO 7792-1:2004