GB/T 2546.1-2022 (English Version) PDF

Standard No.: GB/T 2546.1-2022
Language: Chinese, Available in English version
Release Date: 2022
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 2546.1-2022
Replace: GB/T 2546.1-2006

Scope: This document specifies the nomenclature system for polypropylene (PP) thermoplastic materials, which can be used as the basis for classification. Different types of polypropylene thermoplastic materials are distinguished by a classification system based on the values of the following specified characteristic properties and recommended uses and/or processing methods, important properties, additives, colorants, fillers and reinforcements: a ) tensile elastic modulus; b) Charpy notched impact strength; c) melt mass flow rate (MFR). This document applies to all propylene homopolymers and other propylene copolymers with a mass fraction of 1-olefin monomers less than 50% and blends of the above-mentioned polymers with a mass fraction of not less than 50%. This document applies to materials that are conventionally in the form of powders, granules or crumbs, unmodified or modified by colorants, additives, fillers, etc. This document does not apply to propylene-based rubber. This document does not imply that identically named materials will necessarily have identical properties. This document does not provide engineering data, performance data, or processing condition data necessary to describe a particular application and/or processing method for the material. If necessary, these additional properties can be determined according to the test methods specified in GB/T 2546.2.

GB/T 2546.1-2022 Referenced Document

GB/T 1844.1 Plastics—Symbols and abbreviated terms—Part 1:Basic polymers and their special characteristics*， 2022-10-12 Update
GB/T 2546.2 Plastics—Polypropylene(PP) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of properties
GB/T 2546.2-2022 Plastics—Polypropylene(PP) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of properties
GB/T 3682.1 Plastics—Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics—Part 1:Standard method
GB/T 3682.2 Plastics—Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics—Part 2: Method for materials sensitive to time-temperature history and/or moisture
ISO 1043-1:2001 Plastics - Symbols and abbreviated terms - Part 1: Basic polymers and their special characteristics

2022 GB/T 2546.1-2022 Plastics—Polypropylene (PP) moulding and extrusion materials—Part 1:Designation system and basis for specifications
2006 GB/T 2546.1-2006 Plastic.Polypropylen (PP) moulding and extrusion materials. Part 1: Designstion system and basis for specifications
1988 GB/T 2546-1988 Designation of polypropylene and propylene copolymer materials