GB/T 22271.1-2021 Active National standards

GB/T 22271.1-2021 Plastics—Polyoxymethylene(POM) moulding and extrusion materials—Part 1:Designation system and basis for specification

Publish Date: 2021-10-11 Implement Date: 2022-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Price: $ 50

Download

Basic Information

Standard Code: GB/T 22271.1-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods for synthetic resins and plastics

ICS Name: Thermoplastic plastics

Publish Date: 2021-10-11

Implement Date: 2022-05-01

Pages: 10 pages

Scope

This document specifies a naming system for thermoplastic polyoxymethylene (POM) molding and extrusion materials, which can serve as a basis for classification.
Note: Polyoxymethylene materials are thermoplastic materials mainly composed of homopolymers and copolymers synthesized from formaldehyde. The repeating units in the molecular chain are -CH2O-, which are components of the main polymer chain produced by formaldehyde polymerization.
Different types of polyoxymethylene materials are distinguished by specified characteristic performance values (melt mass flow rate or melt volume flow rate, tensile modulus), as well as basic polymer parameters, recommended uses, processing methods, important properties, additives, colorants, fillers, and reinforcing materials, etc., based on a classification system.
This document applies to all materials containing polyoxymethylene homopolymers, copolymers, and blends of polyoxymethylene. It applies to general powdered, granular, or sheet materials, as well as unmodified materials and those modified with colorants, additives, fillers, etc. This document does not imply that materials with the same name must have the same performance.
This document does not provide engineering data, performance data, and processing conditions for specific materials in end applications. When necessary, these additional properties can be determined using the test methods specified in relevant international standards.