BS ISO 18326:2018 Non-ducted portable air-cooled air conditioners and air-to-air heat pumps having a single exhaust duct. Testing and rating for performance

Performance testing
Ratings
Testing conditions
Heating
Air-conditioning systems
Air-conditioning equipment
Cooling
Measurement characteristics
Air conditioners
Efficiency
Heat pumps
Performance

Link: BS ISO 18326:2018 Non-ducted portable air-cooled air conditioners and air-to-air heat pumps having a single exhaust duct. Testing and rating for performance
Source: BSI Standards