SS ISO 18490:2022

Non-destructive testing - Evaluation of vision acuity of NDT personnel


This Singapore Standard specifies the form of the optotype, the quality requirements for the chart,
the test procedure, and the acceptance level for near vision acuity of NDT personnel. It also addresses the qualification requirements for personnel permitted to carry out the test.

This Singapore Standard only addresses near vision acuity under defined conditions similar to those encountered during routine NDT inspection. It 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 is appropriate for job function.

This Singapore Standard does not address colour vision requirements.




Status Current
Edition 2022
No. of Pages 19
ICS Classification 03.100.30 Management of human resources
19.100 Non-destructive testing
Committee Quality and Safety Standards Committee
Available for Purchase Global
Adoption ISO 18490 : 2015 IDT