Wheelchairs. Part 21. Requirements and test methods for electromagnetic compatibility of electrically powered wheelchairs and scooters, and battery chargers
Internal buildings and structures utilities. Mounting and adjusting of heating and cooling water supply systems. Rules of carrying out and control of performance of works
Liquid petroleum products. Middle distillate fuels. Method for determination of ignition delay and derived certain number (DCN) by combustion in a constant volume chamber
