MSS SP 109: 2022 [paper]

This Standard Practice covers factory-made, weld-fabricated, copper pressure fittings in nominal sizes 1/4 through 12. Included in this Standard Practice are:
a) Pressure-temperature ratings
b) Abbreviations for end connections
c) Size and method of designating openings of fittings
d) Marking
e) Material
f) Weld specifications
g) Laying lengths
h) Inspection tolerance
i) Alignment
j) Testing
k) Gauging