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GB/T 45822-2025: Transparent glass-ceramics for mobile display cover
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 45822-2025 | English | 369 |
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Transparent glass-ceramics for mobile display cover
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GB/T 45822-2025
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Basic data | Standard ID | GB/T 45822-2025 (GB/T45822-2025) | | Description (Translated English) | Transparent glass-ceramics for mobile display cover | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q34 | | Classification of International Standard | 81.040.30 | | Word Count Estimation | 18,130 | | Date of Issue | 2025-08-01 | | Date of Implementation | 2026-02-01 | | Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China | GB/T 45822-2025: Transparent glass-ceramics for mobile display cover---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT45822-2025
ICS 81.040.30
CCSQ34
National Standard of the People's Republic of China
Transparent glass-ceramic for mobile display cover
Released on August 1, 2025
Implementation on February 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Preface
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.
This document is proposed by China Building Materials Federation.
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 is under the jurisdiction of the National Technical Committee for Standardization of Industrial Glass and Special Glass (SAC/TC447).
This document was drafted by. China National Testing and Inspection Holding Group Co., Ltd., Chongqing Xinjing Special Glass Co., Ltd., Rainbow Display
Co., Ltd., Zhejiang Rock Optoelectronics Technology Co., Ltd., Chengdu Guangming Optoelectronics Co., Ltd., China Building Material Glass New Materials Research
Research Institute Group Co., Ltd., Zhuzhou Kibing Group Co., Ltd., Chengdu Tomi Shuangdu Optoelectronics Co., Ltd., Hangzhou Qianzhi Kunda New Materials Science and Technology Co., Ltd.
Technology Co., Ltd., Wuhan University of Technology, Xiaomi Communication Technology Co., Ltd., Zhejiang Parkson Optoelectronics Technology Co., Ltd., Hubei Lianxin Display Technology Co., Ltd.
Co., Ltd., China National Building Materials International Engineering Group Co., Ltd., Rainbow Group Co., Ltd., Hubei Gebiga Optoelectronics Technology Co., Ltd., Changshu Jia
He Display Technology Co., Ltd., Sichuan Hongke Innovation Technology Co., Ltd., Shenzhen New Century Tuojia Optoelectronics Technology Co., Ltd., and Vidali Technology
Co., Ltd., Beijing University of Technology.
The main drafters of this document are. Li Junjie, Liu Yaru, Ding Zuoxin, Shi Lin, Wang Li, Han Song, Zhou Jingpeng, Li Miao, Pan Fanglin, Liu Zhenyu, Jiang Tao,
Sun Shizhong, Li Yaohui, Wei Xinying, Cheng Junhua, Lu Ping, Wang Ting, Tan Baoquan, Chen Shixing, Huang Jun, Liu Yaolong, Chu Jingyuan, Li Zipei, Zhang Ke, Zhang Fujun,
Xu Guoliang, Zhang Kun, Xu Ren, Tian Yingliang, Yuan Jian, Zhao Wenjing, Yang Pingping, Shi Yan, Xu Wei, Zhang Yuqi, Tu Hao, Li Xinyi, Bao Ji, Yin Qiaoyun, Yang Xuedong,
Du Dayan.
Transparent glass-ceramic for mobile display cover
1 Scope
This document specifies the materials, requirements, inspection rules, packaging, marking, transportation and storage of transparent microcrystalline glass for mobile display cover.
The corresponding test methods are described.
This document applies to the production, inspection, delivery and acceptance of chemically strengthened transparent glass-ceramics for mobile display cover panels.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 2410 Determination of light transmittance and haze of transparent plastics
GB/T 2680 Visible light transmittance, direct sunlight transmittance, total solar energy transmittance, ultraviolet light transmittance and other properties of architectural glass
Determination of parameters of closed window glass
GB/T 9258.2 Abrasive particle size analysis for coated abrasives Part 2.Determination of particle size composition of coarse abrasive particles P12 to P220
GB/T 11942-2022 Color measurement method for colored building materials
GB/T 31958-2023 Amorphous silicon thin film transistor liquid crystal display substrate glass
GB/T 32642 Measurement method for surface roughness of flat panel display substrate glass
GB/T 36259 High alumina silicate glass for touch screen cover
GB/T 37900 Test method for hardness and fracture toughness of ultra-thin glass - Small load Vickers hardness indentation method
GB/T 39815-2021 Test method for scratch resistance of ultra-thin glass
JC/T 678 Test method for elastic modulus, shear modulus and Poisson's ratio of glass materials
JC/T 2912-2025 Test method for photoelastic constants of glass
3 Terms and Definitions
The terms and definitions defined in GB/T 36259 and the following apply to this document.
3.1
Transparent glass-ceramics
Glass with a specific composition is obtained by controlling crystallization to obtain a transparent material in which a microcrystalline phase and a glass phase coexist.
4 Materials
Before chemical strengthening, the refractive index, photoelastic constant, elastic modulus and fracture toughness of transparent microcrystalline glass should be tested according to the provisions of Appendix A.
The refractive index and photoelastic constant shall be determined by the supplier and the buyer. The elastic modulus shall be no less than 90GPa and the fracture toughness shall be no less than
0.9MPa·m1/2.
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