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- since 1996 -

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Technical Discussions
Sabir
Sabir
19:04 Sep-01-2016
Film viewer calibration

Hy friends
How can I calibrate film viewer
How can I check illuminance of film viewer
Please answer with detail

 
 Reply 
 
Vijayaraghavan p
Consultant,
Freelance consultant, India, Joined Dec 2009, 12

Vijayaraghavan p

Consultant,
Freelance consultant,
India,
Joined Dec 2009
12
06:11 Sep-02-2016
Re: Film viewer calibration
In Reply to Sabir at 19:04 Sep-01-2016 (Opening).

Film Viewer calibration full details are available in ASTM R 1742.

 
 Reply 
 
Dr. Uwe Zscherpel
Director,
BAM Berlin, Germany, Joined Jan 2010, 83

Dr. Uwe Zscherpel

Director,
BAM Berlin,
Germany,
Joined Jan 2010
83
10:32 Sep-05-2016
Re: Film viewer calibration
In Reply to Vijayaraghavan p at 06:11 Sep-02-2016 .

Dear Sabir,
A NDT film viewer box or station does NOT need any calibration. It needs to fullfil minimum requirements on light color, light intensity (measured in Candela/m*m and NOT in LUX!) and spatial light distributino by the used front glass. These minimum are defined in ISO 5580 and also very shortlyt in ASTM E 1742 (only light intensity). These requirerments have to be checks e.g. semi-annuially according to your QA system, but this is NOT a calibration.
Greetings
Uwe Z.

 
 Reply 
 

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