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Technical Discussions
Philippines, Joined Jun 2016, 1


Joined Jun 2016
14:42 Jun-26-2016
Film Density

Dear Experts,

I would like to know where is the correct place to measure the film density. In RT films, we can find the weld and the base metal being radiography tested. If the base metal has dissimilar thickness, one side of the base metal shall have a density less than the thinner part. If the density of the thicker base metal falls below 2.0, can we consider that this is not meeting as per the code and standards?

Michel Couture
NDT Inspector,
consultant, Canada, Joined Sep 2006, 889

Michel Couture

NDT Inspector,
Joined Sep 2006
01:32 Jun-27-2016
Re: Film Density
In Reply to Pipoy at 14:42 Jun-26-2016 (Opening).

Film density should be measured on every area of interest. I mean, on the center of the weld and each end of it and also on the heat affected zone on each side, plus on the penny. All should be within the density range. Refer to your code for more specific information


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