The number of areas or parts to be radiographed and the acceptance standard to be applied shall be specified in the contract, purchase order, product. Standard. Standard number, ASTM-E ; ASTM-E Title, Standard Method for Controlling Quality of Radiographic Testing. Buy ASTM E METHOD FOR CONTROLLING QUALITY OF RADIOGRAPHIC TESTING from SAI Global.
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By – Date We are currently r142 radiographic inspection on an aluminum boat, and have used an iridium source. I’ve read in AWS where iridium is prohibited on aluminum below 2. Is this the case, even if we meet sensitivity on penetrameter?
Johnson Date There may be other welding codes and standards that may prohibit Iridiumwhat welding code are you welding the boat to? That code will tell you whether it is acceptable or not. Personally I see no problem used Iridiumas l;ong as you are getting correct film e1422 and the relevant penny hole size is readily seen.
This society has a specific document for Rules For Building and Classing Al Vessels as well as Rules for NDE of Hull welds and even though it has been years since I worked in the ship building industry including Al hulls I cannot recall this type of restriction for a source only the phrase An acceptable radiographic technique is to be followed such as that w142 in ASTM E or other recognized standard Regards.
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