GB/T 1634.1-2025 Active National standards

GB/T 1634.1-2025 Plastics—Determination of temperature of deflection under load—Part 1:General test method

GB/T 1634.1-2025 Plastics—Determination of temperature of deflection under load—Part 1:General test method

Publish Date: 2025-01-24 Implement Date: 2025-08-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 1634.1-2025

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: Plastic Composite

Publish Date: 2025-01-24

Implement Date: 2025-08-01

Pages: 16 pages

Scope

This document describes a general method for determining the deformation temperature of plastic loads (bending stress under three-point loading) and evaluating the relative performance of different types of plastic materials when they are heated to high temperatures at a specified heating rate under a specified load.
This document specifies the preferred dimensions of the samples.

Development Information

Word Count: 19 Thousand words Pages: 16 pages

Replace the following standards

GB/T 1634.1-2019 Plastics—Determination of temperature of deflection under load—Part 1:General test method

Referenced Standards

GB/T 1634.2-2004 Plastics—Determination of temperature of deflection under load—Part 2:Plastics,ebonite and long-fibre-reinforced composites GB/T 1634.2-2019 Plastics—Determination of temperature of deflection under load—Part 2:Plastics and ebonite GB/T 1634.3-2004 Plastics—Determination of temperature of deflection under load—Part 3:High strength thermosetting laminates GB/T 2918-1998 Plastics—Standard atmospheres for conditioning and testing GB/T 2918-2018 Plastics—Standard atmospheres for conditioning and testing GB/T 16839.1-1997 Thermocouples—Part 1:Reference tables GB/T 16839.1-2018 Thermocouples—Part 1:EMF specifications and tolerances GB/T 30121-2013 Industrial platinum resistance thermometers and platinum temperature sensors GB/T 44535-2024 Plastics—Determination of linear dimensions of test specimens

Adopt standards

ISO 75-1:2020

Related Standards

GB/T 12000-1989 Replaced

GB/T 12000-1989 Plastics—Test methods of exposure to damp heat, steady state

Publish Date: 1989-12-25

GB/T 15585-1995 Abolished

GB/T 15585-1995 Determination of shrinkage for injection moulding thermoplastics

Publish Date: 1995-06-12

GB/T 15596-1995 Replaced

GB/T 15596-1995 Plastics—Determination of changes in Color and variations in properties after exposure to daylight under glass, natural weathering or artificial light

Publish Date: 1995-06-12

GB/T 15598-1995 abolished_transferred

GB/T 15598-1995 Testing methods for shear strength of plastics by punch tool

Publish Date: 1995-06-12

GB/T 1843-1996 Replaced

GB/T 1843-1996 Plastics—Determination of izod impact strength

Publish Date: 1996-06-14

GB/T 2035-1996 Replaced

GB/T 2035-1996 Terms and definitions for plastics

Publish Date: 1996-06-14