GB/T 40921-2021 Active National standards

GB/T 40921-2021 Expanded polypropylene (PP-E) beads

GB/T 40921-2021 Expanded polypropylene (PP-E) beads

Publish Date: 2021-11-26 Implement Date: 2022-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 40921-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Synthetic resins and plastics

ICS Name: Foam material

Publish Date: 2021-11-26

Implement Date: 2022-06-01

Pages: 12 pages

Scope

This document specifies the product classification, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of foamed polypropylene (PP-E) beads.
This document applies to foamed polypropylene beads with certain sizes and shapes, which are made from polypropylene and its copolymers as the main raw materials, with the addition of nucleating agents and the use of physical foaming agents.

Development Information

Word Count: 25 Thousand words Pages: 12 pages

Referenced Standards

GB/T 2918-2018 Plastics—Standard atmospheres for conditioning and testing GB/T 6343-2009 Cellular plastics and rubbers—Determination of apparent density GB 8410-2006 Flammability of automotive interior materials GB/T 8813-2020 Rigid cellular plastics—Determination of compression properties GB/T 9345.1-2008 Plastics—Determination of ash—Part 1:General methods GB/T 13464-2008 Thermal analysis test methods for thermal stability of materials GB/T 21389-2008 Vernier,dial and digital display calipers GB/T 31838.3-2019 Solid insulating materials—Dielectric and resistive properties—Part 3:Resistive properties(DC methods)—Surface resistance and surface resistivity HJ/T 400-2007 Method for sampling and determination of volatile organic compounds and aldehydes and ketones in vehicles

Related Standards

GB/T 10799-1989 Replaced

GB/T 10799-1989 Cellular plastics—Determination of volume percentage of open and closed cells of rigid materials

Publish Date: 1989-03-31

GB/T 10802-1989 Replaced

GB/T 10802-1989 Cellular plastics—Flexible polyurethane foam

Publish Date: 1989-03-31

GB/T 10807-1989 Replaced

GB/T 10807-1989 Polymeric materials, cellular flexible—Determination of hardness (indentation technique)

Publish Date: 1989-03-31

GB/T 10808-1989 Replaced

GB/T 10808-1989 Cellular plastics—Tear resistance test for flexible materials

Publish Date: 1989-03-31

GB/T 12811-1991 Replaced

GB/T 12811-1991 Test method for average cell size of rigid cellular plastics

Publish Date: 1991-04-28

GB/T 12812-1991 Replaced

GB/T 12812-1991 Test method for tumbling friability of rigid cellular plastics

Publish Date: 1991-04-28