IEC 61747-40-1:20 19作为IEC 61747-40-1:20 19 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 61747-40-1:20 19为移动设备中电子平板显示器中使用的盖板玻璃提供了机械性能测试指南。本文件侧重于关键的机械性能参数，主要涵盖强度和抗损伤属性。测试方法仅侧重于盖板玻璃液位测试。与上一版相比，此版本包括以下重大技术变更: -撤回不适用于移动显示器盖的测试方法， -根据新开发的市场相关性修订测试方法， -增加了磨损强度的测试方法， -增加关于测试方法和断裂模式之间的相关性的解释，以及 -修订术语和定义。

IEC 61747-40-1:2019 is available as IEC 61747-40-1:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 61747-40-1:2019 provides mechanical performance testing guidelines for cover glass used in electronic flat panel displays in mobile devices. This document focuses on key mechanical testing performance parameters and covers mainly strength and damage resistance attributes. The test methods focus on the cover glass level testing only. This edition includes the following significant technical changes with respect to the previous edition:
- withdrawal of test methods unsuitable for mobile display cover,
- revision of test methods based on newly developed market relevance,
- addition of test method for abraded strength,
- addition of explanations about the relevance between the test methods and the fracture mode, and
- revision of terms and definitions.