A.No downstream requirement

B.100 feet, if the pipe is straight run

C.25 feet beyond the first change

D.50 feet beyond the first change

A.50%

B.100%

C.10%

D.33%

A.10 years

B.15 years

C.5 years

D.whenever a leak is suspected

A.3 feet -5. feet

B.6 feet -8 feet.

C.Any length as long as it is inspected 180° circumference.

D.Any length as long as It IS Inspected full circumference.

A.PQR

B.PDQ

C.welder

D.NACE