The ISO 14692 code provides a limited number of tee and joint types for fiberglass reinforced pipe (FRP).
1 - Tee
The software uses the method specified in ISO 14692 for non-qualified tees.
2 - Joint
The software uses the calculations specified in the code for joints and fittings.
3 - Qualified Tee
The software uses the code-specified calculation for qualified service stress for tees (including the pressure stress multiplier, mpst).