NBN EN ISO 140-8 : 1998

1 Scope
2 Normative references
3 Definitions
4 Equipment
5 Test arrangement
    5.1 General arrangement
    5.2 Details of test arrangement
          5.2.1 Source room
          5.2.2 Receiving room
          5.2.3 Test floor
          5.2.4 Condition of floor surface
    5.3 Preparation and installation of test specimen
          5.3.1 Classification
          5.3.2 Installation
          5.3.3 Size and number of specimen
    5.4 Influence of temperature and humidity
6 Test procedure and evaluation
    6.1 Generation of sound field
    6.2 Measurement of impact sound pressure level
          6.2.1 Microphone positions
          6.2.2 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
    6.6 Position of the tapping machine
          6.6.1 Adjustment of the tapping machine
          6.6.2 Materials of category I
          6.6.3 Materials of category II and III
7 Precision
8 Expression of results
9 Test report
Annexes
A Requirements for the tapping machine
B Form for the expression of results
C Bibliography