S.R. CLC/TS 61949:2008

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 List of symbols
5 Equipment required
6 Test methods
  6.1 Establishing quasi-linear conditions
      6.1.1 The local distortion parameter
      6.1.2 Upper limit for quasi-linear conditions for sigma[q]
      6.1.3 Range of applicability for quasi-linear conditions
  6.2 Measurement procedure for estimated in situ exposure
      6.2.1 Identification of quasi-linear conditions
      6.2.2 Tables of limiting mean peak acoustic pressure
      6.2.3 Measurement of acoustic quantities under quasi-linear
            conditions
      6.2.4 Measurement of the scaling factor
      6.2.5 Calculation of attenuated acoustic quantities
  6.3 Uncertainties
Annex A (informative) Review of evidence
Annex B (informative) Review of alternative methods for managing
        finite-amplitude effects during field measurement
Annex C (informative) Parameters to quantify nonlinearity
Annex D (informative) Tables of upper limits for mean peak
        acoustic pressure for quasi-linear conditions
Bibliography

Specifies means to allow 'attenuated' acoustic quantities to be calculated under conditions where the associated acoustic measurements, made in water using standard procedures, may be accompanied by significant finite-amplitude effects.