Dear all,
As per specification we have D4 film to be used for radiography of 7.8mm welds
of M250.As an investigation of a defect in UT D2 film was used and it detected
faint indications. The sensitivity IQI is seen in both the films as per
specification. Should we change to D2 film?
Regards
Ananthanarayanan
Trivandrum
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