GB/T 47391.2-2026 Pending National standards

GB/T 47391.2-2026 Plastics—Unsaturated-polyester powder moulding compounds(UP-PMCs)—Part 2:Preparation of test specimens and determination of properties

Publish Date: 2026-03-31 Implement Date: 2026-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 47391.2-2026

Standard Type: National standards

Standard Status: Pending

is_force_gb: no

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

ICS Name: Plastic Composite

Publish Date: 2026-03-31

Implement Date: 2026-10-01

Pages: 16 pages

Scope

This document describes the sample preparation methods and performance testing methods for powdered unsaturated polyester molding compounds (UP-PMCs), and stipulates the processing requirements for the materials being tested and the state adjustment requirements for the materials being tested before molding. This document is applicable to the sample preparation and performance testing of powdered unsaturated polyester molding compounds (UP-PMCs). It provides the steps and conditions for sample preparation, as well as the methods for using these samples for performance testing, and lists the applicable and necessary performance characteristics and testing methods for characterizing PMCs. The performance items are selected from the general testing methods in GB/T 19467.1. Other widely used or particularly significant testing methods for PMCs are also included in this document, such as the characteristic performance in GB/T 47391.1. In order to obtain reproducible and comparable test results, it is crucial to adopt the sample preparation methods, state adjustment methods, sample sizes, and test procedures specified in this document. Test results obtained using different sample sizes or different preparation methods may not be consistent.