GB/T 11546.2-2022 (English Version) PDF

Standard No.: GB/T 11546.2-2022
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 11546.2-2022

Scope: This document describes a method for the determination of flexural creep of standard specimens of plastics under given conditions such as pretreatment, temperature and humidity. This document applies only to tests with free support at both ends and loading at the center (three-point bending test). This document applies to unreinforced, filled and fibre-reinforced rigid and semi-rigid plastic materials. This document applies to molded test pieces of specified dimensions, test pieces machined in the middle of multi-purpose test pieces, or from finished or semi-finished products such as Machined specimens of molded parts, extruded or cast sheets. Note 1: Due to the difference in fiber orientation, this document may not apply to some fiber-reinforced materials. Note 2 to entry: Flexural creep will vary greatly with specimen preparation, specimen size and test environment. The thermal history of the specimen can also have a greater impact on the creep behavior of the specimen (see Appendix A). This document does not apply to the determination of flexural creep properties of rigid foamed plastics. The methods described in this document can provide data for engineering design, research and development. If used in engineering design, plastic materials are tested under a wide range of internal stress, time and environmental conditions.

GB/T 11546.2-2022 Referenced Document

GB/T 1034 Plastics.Determination of water absorption
GB/T 2035 Terms and definitions for plastics
GB/T 2918 Standard environment for conditioning and testing of plastic specimens
GB/T 9341 Plastic.Determination of flexural properties

2022 GB/T 11546.2-2022 Plastics—Determination of creep behaviour—Part 2:Flexural creep by three-point loading