full service NDT since 1990

Eyesight test - application for Android

With this simple application for devices using Android can any NDT certificate candidate roughly verify their own eyesight skills.

According to the  ČSN EN ISO 9712 norm must every applicant prove his or her satisfying eyesight skills in agreement with the following requirements:

  1. sharpness of close vision must enable at least reading of the Jaeger text number 1 or the font Times Roan N 4.5 or equivalent font (with size 1.6mm) from distance of at least 30 cm by one or both eyes, with or without correction;
  2. ability of colour vision must be sufficient so that the applicant could recognize and distinguish contrast between colours or shades of grey, which are used in the NDT method according to the employers requirements.

 

Ïn continuity on the certification must the sharpness close vision test done once a year and must be verified by the employer.

With this simple programme you can roughly find out where you stand. We recommend especially two tests - "Reading vision" and "colour vision".

Application can be downloaded for free on Android and iOS.

Odkaz na Google Play Odkaz na App Store

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