term1 Definition1term2 Definition2term3 Definition3
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Which of the following piping systems is covered by B31.3
C 1NPS-45 psig gasoline at a tank terminal
A process pipe should be classified as class 1 when the percentage of H2S exceeds
D 3%
A welder becomes unqualified when he has not welded using the
C process for 6 months
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