DIN Standards Committee Materials Testing
Non-destructive testing – Evaluation of vision acuity of NDT personnel (ISO 18490:2026); German version EN ISO 18490:2026
Abstract
This document specifies quality requirements for the chart, test procedure and acceptance level for near, far, and colour vision acuity of NDT personnel. Information for grey scale perception and low contrast can be found in the annexes. This document also specifies the qualification requirements for personnel permitted to carry out the test. This document is only applicable to vision acuity under defined conditions similar to those encountered during routine NDT inspection. This document does not address an individual's overall visual acuity and users are advised to consider the need for a general eye examination by specialist medical personnel to ensure general vision acuity.
Begin
2023-12-18
WI
00138299
Planned document number
DIN EN ISO 18490
Project number
06236664
Responsible national committee
NA 062-11-02 AA - Qualification and certification of NDT personnel
Responsible european committee
CEN/TC 138 - Non-destructive testing
Responsible international committee
ISO/TC 135/SC 7/WG 10 - Visual acuity
draft standard
Non-destructive testing - Evaluation of vision acuity of NDT personnel (ISO/DIS 18490:2025); German and English version prEN ISO 18490:2025
2025-06
Order from DIN Media
