BS ISO 15665:2003

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classes of acoustic insulation
5 Guide to the reduction of noise from pipes
   5.1 Required insertion loss: Design phase steps
   5.2 Required insertion loss: Operating plants
   5.3 Length of acoustic insulation
   5.4 Implications for piping design
   5.5 Derivation of overall noise reduction
   5.6 Typical noise reduction values
6 Construction of typical acoustic insulation systems
   6.1 General
   6.2 Cladding
   6.3 Porous layer
   6.4 Support of the cladding
7 Installation
   7.1 General
   7.2 Extent of insulation
   7.3 End caps
   7.4 Acoustic enclosures
   7.5 Prevention of mechanical damage
8 Combined thermal and acoustic insulation
   8.1 General
   8.2 Hot services
   8.3 Cold services
9 Acoustic insulation construction that meet the insulation
   class requirements
   9.1 General
   9.2 Materials
   9.3 Vibration isolation material at pipe supports
10 Testing of acoustic insulation systems
   10.1 General
   10.2 Measurement method: Reverberation room
   10.3 Test facility
   10.4 Test specimen
   10.5 Measurements
   10.6 Results
   10.7 Information to be reported
Annex A (informative) - Equations for the calculation
                        of the minimum required insertion
                        loss D[W,min] of the insulation
                        classes
Annex B (informative) - General construction of acoustic
                        insulation
Annex C (informative) - Examples of typical construction
                        details
Bibliography

Describes the acoustic performance of three classes (Classes A, B, C) of pipe insulation. It also specifies three types of construction that will meet these acoustic performance classes.