GB/T 39141.4-2024 in English
VALIDMineral and sapphire watch-glasses—Part 4: Anti-reflective treatment
- Issued on:2024-11-28
- Implemented on:2025-06-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$262.00
| Standard No: | GB/T 39141.4-2024 |
| Document status: | VALID |
| Title in English: | Mineral and sapphire watch-glasses—Part 4: Anti-reflective treatment |
| Title in Chinese: | 无机和蓝宝石手表玻璃 第4部分：减反射处理 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-11-28 |
| Implemented on: | 2025-06-01 |
| ICS Classification: | 39.040.10-Watches |
| Chinese Classification: | Y11-Horology |
| Professional Classification: | GB-National Standard |
| Related Keywords: | anti-reflective treatment introduction
sapphire watch crystals antireflection treatment watch-glasses part sapphire |
《GB/T 39141.4-2024无机和蓝宝石手表玻璃 第4部分：减反射处理》由TC160（全国钟表标准化技术委员会）归口，主管部门为中国轻工业联合会。
Introduction
The National Standardization Administration of China has published GB/T 39141.4-2024, a standard concerning antireflection treatment for inorganic and sapphire watch crystals on November 28, 2024. This standard will come into effect on June 1, 2025.
The scope of this standard includes specifications for the performance requirements, testing methods, quality evaluation criteria, and other technical details related to antireflection treatments applied to inorganic and sapphire watch crystals. It aims to ensure consistent quality and performance across various manufacturers and products within the industry.
This document is part of a series dedicated to enhancing the durability, clarity, and functionality of modern timepieces by setting out rigorous testing protocols that cover optical properties such as light transmission, reflection reduction efficiency, abrasion resistance, chemical stability under environmental conditions, and long-term reliability over extended periods of use.
*** Please note: This description may not be accurate, please refer to the official documentation.
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