ANSI/MSS SP-114-2007
This Standard Practice for corrosion resistantpipe fittings threaded and socket welding, Class 150and 1000, establishes requirements for thefollowing:
a) Pressure-temperature ratings
b) Size and method of designating openingsof reducing fittings
c) Marking
d) Minimum requirements for materials
e) Dimensions and tolerances
f) Threading
g) Tests