NBN EN 12053 : 2001 + A1 2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Installation and equipment
  4.1 Test environment
  4.2 Equipment and condition of the truck
  4.3 Position of the truck during measurement
      4.3.1 LIFT and IDLE conditions
      4.3.2 DRIVE condition
5 Operating conditions during measurement
  5.1 General
  5.2 Load of the truck
  5.3 Operation of the truck during measurement
      5.3.1 General
      5.3.2 LIFT condition
      5.3.3 IDLE condition
      5.3.4 DRIVE condition
  5.4 Trucks equipped with a cab
      5.4.1 Cab with an air conditioning and/or pressurized
            ventilating system(s)
      5.4.2 Cab without air conditioning or pressurized
            ventilating system(s)
6 Noise determination
   6.1 Instrumentation
   6.2 Microphone positions
       6.2.1 Microphone positions for determination of the
             sound pressure levels at the operator's position
       6.2.2 Microphone positions for determination of the
             sound power levels
   6.3 Measurements
       6.3.1 Measurements of sound pressure levels at
             operator's position
       6.3.2 Sound power level determination
7 Measurement uncertainties
8 Information to be recorded
9 Declaration of noise emission values
Annex A (Normative) Calculation of levels in an
        average operational cycle
        A.1 Calculation of the emission sound pressure
            level in an operational cycle
        A.2 Calculation of the sound power level for an
            operational cycle
        A.3 Time proportion factors of the operating
            conditions
Annex ZA (informative) Clauses of this European Standard
         addressing essential requirements or other
         provisions of EU Directives

Gives methods for determining the sound pressure level at the operator's position and the sound power level of industrial and rough terrain trucks.