Surface cleaning appliances - Floor treatment machines with or without traction drive, for commercial use - Methods of measuring the performance— 48 стр.
Surface cleaning appliances - Part 9: Floor treatment machines with or without traction drive, for commercial use - Methods for measuring the performance— 48 стр.
Medical electrical equipment - Part 2-66: Particular requirements for the basic safety and essential performance of hearing instruments and hearing instrument systems— 88 стр.
