GB/T 41927-2022 in English

VALID

Plastics—Thermosetting moulding materials—Evaluation of short-term performance at elevated temperatures

Issued on:2022-12-30
Implemented on:2023-04-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $100.00
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Standard No:	GB/T 41927-2022
Document status:	VALID
Title in English:	Plastics—Thermosetting moulding materials—Evaluation of short-term performance at elevated temperatures
Title in Chinese:	塑料热固性模塑料高温下的短期性能评估
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2022-12-30
Implemented on:	2023-04-01
ICS Classification:	83.080.10-Thermosetting materials
Professional Classification:	GB-National Standard
Related Keywords:	short-term performance evaluation relative performance temperature performance evaluation short-term performance materials evaluation
Related Topics:	gb plastic expected performance up thermosetting plastic Plastic high temperature test linear model high plastic Plastic Performance Analysis performance evaluation performance evaluation Plastic product performance Thermosetting Properties molding compound plastichigh temperature Purpose of performance testing short term High Energy Engineering Plastics short-range plasticity Less than 4 times the height of the short side thermosetting Plastic conductivity assessment

《GB/T 41927-2022塑料热固性模塑料高温下的短期性能评估》由TC15（全国塑料标准化技术委员会）归口，TC15SC11（全国塑料标准化技术委员会热固性塑料分会）执行，主管部门为中国石油和化学工业联合会。

Introduction

1. Background of standard formulation and technological evolution

GBT41927-2022 is a revised version of ISO11248:1993, mainly for the short-term performance evaluation of thermosetting molding compounds at high temperatures. With the advancement of materials science, especially the growing demand for plastic products used in high temperature environments, the revision of this standard aims to more accurately evaluate the high temperature resistance of materials and provide reliable data support for designers and engineers.

2. Comparative analysis of standard frameworks

Standard dimensions	ISO11248:1993	GBT41927-2022	Difference analysis
Test methods	Based on international general standards	Introducing GB/T series standards to improve applicability	Replacing some ISO standards to increase operability
Definition of terms	Not clearly defined	Adding terms such as "Relative Performance Temperature (RPT)"	Increasing the standard's normativeness
Test equipment requirements	General equipment requirements	Specify the oven type and performance indicators	Improve the controllability of experimental conditions

3. Analysis of standard technical requirements

Instruments and equipment:It is recommended to use a forced ventilation oven with controlled airflow (such as model XXX) and equipped with a suitable specimen rack. The test equipment must comply with the requirements of GB/T9341-2008, GB/T1040.1-2018 and other standards to ensure data accuracy.

Test steps:Including sample preparation, state adjustment, test temperature determination and performance evaluation. Special emphasis is placed on determining the initial test temperature by Dynamic Mechanical Analysis (DMA) or Deflection Temperature Under Load (DTUL), and gradually adjusting to obtain the Relative Performance Temperature (RPT).

More samples: DL/T 368-2010 GB 50021-2001(2009) NB/T 47013.2-2015

Sample only — not a preview of GB/T 41927-2022