GB/T 26749-2022 in English

VALID

Carbon fibre—Determination of tensile properties of resin-impregnated yarn

Issued on:2022-07-11
Implemented on:2023-02-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $270.00
$262.00

Standard No:	GB/T 26749-2022
Document status:	VALID
Title in English:	Carbon fibre—Determination of tensile properties of resin-impregnated yarn
Title in Chinese:	碳纤维浸胶纱拉伸性能的测定
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2022-07-11
Implemented on:	2023-02-01
Superseding:	GB/T 26749-2011 Carbon fiber - Determination of tensile properties of resin-impregnated yarn
ICS Classification:	59.100.20-Carbon materials
Chinese Classification:	Q53-Special carbon material
Professional Classification:	GB-National Standard
Related Topics:	carbon fiber collagen fibril degeneration Glue performance High performance carbon fiber sheet yarn Identification of Carbon Fiber High performance carbon fiber sheet carbon fiber sleeve Conductive Fiber Properties Conductive properties of fibers stretching of synthetic fibers Fiber Tensile Test Conditions iso fiber stretch carbon fiber stretch Test the performance of glue Fiber stretcher tensile properties Fiber tensioner carbon fiber standard Carbon Fiber Tensile Test Carbon Fiber Tensile Test carbon fiber stretch carbon fiber carbon carbon Fiber property measurement Stretch in English Carbon fiber ton Fiber stretcher Fiber drawing device Dip t t dip glue stretch GBT26749 GB/T 26749-2011 GB/T 26749-2022 to stretch carbon fiber sizing Hot fiber equipment Carbon fiber tensile standards Latest carbon fiber testing The latest determination of carbon fiber sizing agent content Determination of tensile properties of wires carbon fiber group Tensile standards for carbon fiber panels Elastomer tensile property testing Carbon fiber pole testing Testing of fiber tensile modulus Optical fiber tensile testing Airgel testing tensile properties Carbon fiber industry Single fiber tensile property test Hydrogel tensile testing Stretch standard glue American Standard Prepreg Tensile Test Gel tensile test Carbon fiber wettability test

《GB/T 26749-2022碳纤维浸胶纱拉伸性能的测定》由TC572（全国碳纤维标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Introduction

Analysis of core changes in the standard

Project	2022 Edition	2011 Edition	Description of changes
Scope of application	Carbon fiber yarn	Carbon fiber dipped yarn	Expanded applicable objects
Number of samples	6 valid data	5 valid data	Improve data reliability
Curing temperature control	±3℃ accuracy	Unspecified	New core indicators

Key Technical Points

Test Device Optimization

New requirements for Pneumatic Clamps and Laser Strain Gauges in the standard:

Clamp holding force error ≤1%
Extensometer linearity tolerance ≤0.1%

Data Calculation Specifications

Tensile Strength Formula	σf=Ff/Af×10³
Elastic Modulus Calculation	Ef=(ΔF×L0)/(Af×ΔL)×10³
Effective data determination	3 categories and 12 items of failure modes (fracture in the fixture, debonding of the reinforcement sheet, etc.)

More samples: QC/T 942-2021 YD/T 3934-2021 GB 18306-2015

Sample only — not a preview of GB/T 26749-2022

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