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zaidi
zaidi
03:55 Jun-12-2009
Instrument with attenuation : b-a-c ??

Hi everyone,

I've been confusing about expression "Instrument with attenuation : b-a-c" in AWS D1.1 2006 Sect.6.26.6.5.Could you please explain me about it, And when we have to use the formula(b-a-c) instead of the a-b-c? As my knowledge that most UT Technicians only use the a-b-c when they evaluate every defect found.Thanks in advance for further kind explaination.

Best Regards,
Zaidi

 
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