[MW:8514] Re: X-ray radiography

dear Redouane,

actually as per my understanding to your query is about the 8 inch dia
below is preferred to used slow film, instead of fast film, in agfa
film equivalent is d4 and d7 and it because of sensitivity

http://www.google.com/#sclient=psy&hl=en&safe=active&q=films+for+industial+radiography&aq=f&aqi=&aql=&oq=&gs_rfai=&pbx=1&psj=1&fp=3abe5adf4192a0aa

try this link maybe it can help you.

marcelo
qa/qc eng'r

On Nov 30, 5:39 pm, Brl Pp <refazosa...@gmail.com> wrote:
> Hi all
>
> FOR PIPING WORKS:
>
> What means R4 and R5 for the radiography? If the thickness is below 8
> mm, which is chosen? R5 or R4
>
> Best regards
>
> Redouane (project engineer)
> Algeria

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