In day to day life we have to deal with Pressure vessel / heat exchanger manufacturing code.
These codes are not performance oriented code, these are safety oriented code. The basic approach of the code is from user point of view.. more the hazard stringent will be the code.
The Category of the pressure vessel are depends upon hazard the pressure vessel failure will lead to..
The classification depends upon pressure/volume/ liquid category (lethal or normal) .
European directive for the Pressure vessel is PED 97/23 EC (Pressure equipment directive)
Famous Code of construction used world wide are
EN 12953 : SHELL BOILER
EN 12952 : COIL / TUBE BOILER
EN 13445 : UNFIRED Pressure Vessel
BS 5500/ PD 5500 : UNFIRED Pressure Vessel
IS 2825 : UNFIRED Pressure Vessel
IS 4503 : Heat Exchanger
ASME VIII Div1 : UNFIRED Pressure vessel
BS 2790 : SHELL BOILER (replace with EN code)
BS 1113 : COIL / TUBE BOILER (replace with EN Code)
TEMA : Heat exchanger code
TRD : German Code for Fired Vessel / BOILER
GOST : Russian Code for Fired/ unfired vessel / BOILER