Download or read book GB T 41856 1 2022 Translated English of Chinese Standard GB T 41856 1 2022 GBT41856 1 2022 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-06-23 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the method principle, environmental requirements, personnel requirements, testing system, testing, result evaluation, and testing report of industrial endoscopy (hereinafter referred to as endoscopy) visual testing. This document is applicable to the testing and evaluation of the inner surface state and internal structure of metal or non-metal parts and assembly components of industrial products.