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GB/T 45946-2025Glass-ceramic panel for household and similar electrical appliances (English PDF)

家用和类似用途电器用微晶面板

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

June 30, 2025

Implementation date

January 1, 2026

Scope

GB/T 45946-2025 is the English-translated version of 家用和类似用途电器用微晶面板.

GB/T 45946-2025 is the Chinese national standard covering the black cooktop panel over an induction or radiant hob — the categories, among them the low expansion grade and the one made from a batch without arsenic or antimony, the linear thermal expansion that decides whether the panel takes thermal shock without cracking, the bending strength, the impact test on its bracket, the pencil hardness, the thermal diffusivity and the volume resistivity at temperature, and the inspection rules. First edition, under the China National Light Industry Council. In force from 1 January 2026. Issued on 30 June 2025, it has been in force since 1 January 2026.

Document preview — GB/T 45946-2025

National Standard of the People's Republic of China

ICS: 97.030
Classification: Y 60

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 Categories2
5 Technical Requirements2
6 Test Method4
7 Inspection Rules7
8 Marking, packaging, transportation, storage8
Appendix A (Normative) Impact Specimen Bracket9
Reference10

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the China Light Industry Federation.

This document is under the jurisdiction of the National Technical Committee for Standardization of Household Electrical Appliances (SAC/TC46).

This document was drafted by: Wenzhou Kanger Microcrystalline Ware Co., Ltd., Guangdong Midea Life Appliance Manufacturing Co., Ltd., China Household Appliances Research Institute, Zhejiang Changxing Novatek Glass Co., Ltd., Zhongshan Yuelong Kitchen Appliance Co., Ltd., Sichuan Leading Microcrystalline Glass Co., Ltd., Guangdong Kedi Glass-Ceramic Industry Co., Ltd., Zhongshan Jiadelong Kitchen Appliance Co., Ltd., Zhongshan Nadi Electric Technology Co., Ltd., Zhongshan Carterno Electric Co., Ltd., China Home Furnishing Institute (Beijing) Testing and Certification Co., Ltd., Shantou High-tech Zone Dexin Industrial Co., Ltd., Foshan Shunde Bailuo Electric Co., Ltd. and Cixi Yueda Electronic Technology Co., Ltd.

The main drafters of this document are: Chen Mingxing, Zhao Shuang, Wu Zhiyong, Shi Hong, Huang Haixiao, Shen Shangyong, Wu Song, Cai Songquan, Zhong Hua, Zhong Hanxin, Lin Jianbo, Li Tingting, Li Zetao, Jian Fuquan, Zhen Baohua, Niu Junying, Guo Qinzuan.

Microcrystalline panels for household and similar electrical appliances

1 Scope

This document specifies the requirements, inspection rules, marking, packaging, and other requirements for glass-ceramic panels for household and similar electrical appliances (hereinafter referred to as "glass-ceramic panels").

The packaging, transportation and storage are given, and the classification is given to facilitate technical regulations, and the corresponding test methods are described.

This document applies to the design, production, quality inspection, and delivery of flat microcrystalline panels. It is for reference only for other special-shaped microcrystalline panels.

2 Normative references

GB/T 1549-2008

GB/T 6739

GB/T 16535

GB/T 21389

GB/T 22588

GB/T 31838.7

GB/T 37781-2019

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 glass-ceramic

glass ceramics ceramicglass A type of polycrystalline glass containing a large amount of microcrystalline phase and glass phase, which is obtained by controlling the crystallization of a basic glass with a specific composition during heating. Crystalline solid material. [Source. QB/T 4831-2015, 3.1]

3.2 Low expansion glass-ceramic

In the range of 25°C~700°C, the linear thermal expansion coefficient of the material is less than 20x10-7/K, and the strain caused by temperature stress is low. (3.1).

[Source. QB/T 4831-2015, 3.2, modified]

3.3

Low expansion glass-ceramics (3.2) made from glass batches without adding inorganic arsenic compounds, antimony oxide and other raw and auxiliary materials.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 19 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 6739 · GB/T 16535 · GB/T 31838.7

Editions of GB/T 45946

Edition	Title	Revision	Status
GB/T 45946-2025	Glass-ceramic panel for household and similar electrical appliances	current edition	Current

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