DIN EN ISO 140-3:2005-03

Foreword
1 Scope
2 Normative references
3 Definitions
4 Equipment
5 Test arrangement
  5.1 Rooms
  5.2 Test specimen
      5.2.1 Partitions
      5.2.2 Doors, windows, glazings and facade elements
6 Test procedure and evaluation
  6.1 Generation of sound field in the source room
  6.2 Measurement of average sound pressure level
      6.2.1 General
      6.2.2 Microphone positions
      6.2.3 Averaging time
  6.3 Frequency range of measurements
  6.4 Measurement of reverberation time and evaluation of
      the equivalent sound absorption area
  6.5 Correction for background noise
7 Precision
8 Expression of results
9 Test report
Annex A (normative) Putty for the mounting of glazings in
                      the test opening
Annex B (normative) Measurement of the sound reduction
                      index of the filler wall (and any
                      flanking constructions) for test
                      openings for doors, windows, glazings
                      and facade elements
Annex C (normative) Qualification and positioning of the sound
                      source
Annex D (informative) Measurement of flanking transmission
Annex E (informative) Measurement of the total loss factor
Annex F (informative) Guidance for measurements in the
                      low-frequency bands
Annex G (informative) Form for the expression of results
Annex H (normative) Installation guidelines for lightweight
                      twin leaf partitions

Gives a laboratory method of measuring the airborne sound insulation of building elements such as walls, floors, doors, windows, facade elements and facades, except those classified as small building elements (for which a measuring method is specified in ISO 140-10).