API 570 DATA SHEETS(DIMENSIONS)

design- mill tolerance for rolled and welded pipe

NDE- maximum length of crack, or incomplete fusion allowed on a new weld

flanges- typical flange finish

flanges- when mating flanges, the maximum amount of unparallel allowed (per diameter of flange in feet)

flanges- max offset for bolt-holes for mating flanges

welding- maximum allowed size of open discontinuity in a bend test

preheat zone- distance from toe of weld

PWHT zone- distance from toe of weld

NDE- minimum distance beyond the area to be examined to clean  a part when performing a MT examination

NDE- minimum distance beyond the area to be examined to clean a part when performing a PT examination

repairs- minmum radius of insert patch

repairs- minimum radius of insert patch

NDE- max diameter of CML exam point for lines < or equal to 10 nps

NDE- max diameter of CML exam point for lines > 10 nps

NDE- minimum lenght of spot RT

welding- min length  to RT/UT when qualifying a welder with test coupon or 1st production weld

welding- minimum lenght of RT when qualifying a welding operator with a test coupon

corrosion- soil-to-air area- distance in air from interface

corrosion- distance to dig when inspecting for soil-to-air corrosion

NDE- distance of eye-to-part to count as a visual exam

corrosion- soil-to-air area0 distance in soil from interface

NDE- minimum upstream limit of intensive examination of injection point circuit

PWHT- min overlap for PWHT when using multiple heats

welding- minimum length of RT/UT when qualifying a welding operator on first production weld

underground- minimum length of buried pipe to expose when excavating for inspection

repairs- maximum size of fillet weld patch on pipe

circuits- minimum upstream limit of injection point circuit

NDE- minimum downstream limit of intensive examination for injection point circuit 

circuits- min downstream limit of injection point circuit