ISO/FDIS 15665

Acoustics — Acoustic insulation for pipes, valves and flanges

Acoustique — Isolation acoustique des tuyaux, clapets et brides

General Information

• Status: Not Published
• ICS: 17.140.20 - Noise emitted by machines and equipment
• ICS: 91.120.20 - Acoustics in building. Sound insulation
• Technical Committee: ISO/TC 43/SC 1 - Noise
• Drafting Committee: ISO/TC 43/SC 1/WG 66 - Revision of ISO 15665 Acoustic insulation of pipes, valves and flanges
• Current Stage: 5020 - FDIS ballot initiated: 2 months. Proof sent to secretariat
• Start Date: 18-Sep-2023
• Completion Date: 18-Sep-2023

Relations

• Revises: ISO 15665:2003 - Acoustics — Acoustic insulation for pipes, valves and flanges
• Effective Date: 23-Apr-2020

Standards Content (Sample)

2023-07-24
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line: 0 pt, Tab stops: Not at 21.6 pt
ISO/FDIS 15665:2023(E)
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at 18 pt
ISO TC 43/SC 1/WG 66
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2023-xx Style Definition: Heading 4: Font: Bold
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Secretariat: DIN
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Style Definition: ANNEX
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Acoustics — Acoustic insulation for pipes, valves and flanges
Acoustique — Isolation acoustique des tuyaux, clapets et brides

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ISO/FDIS 15665:2023(E)
© ISO 2023
Formatted: Pattern: Clear
Formatted: Pattern: Clear
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no
part of this publication may be reproduced or utilized otherwise in any form or by any means,
electronic or mechanical, including photocopying, or posting on the internet or an intranet, without
prior written permission. Permission can be requested from either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved

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ISO/FDIS 15665:2023(E)
Contents
Foreword . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classes of acoustic insulation . 3
5 Guidance to the reduction of noise from pipes . 8
5.1 Required insertion loss: design phase steps . 8
5.1.1 Determination of sound pressure levels . 8
5.1.2 Evaluation of sound pressure levels against limits . 8
5.1.3 Determination of sound power levels . 8
5.1.4 Contribution to noise in reverberant spaces or environmental noise . 9
5.2 Required insertion loss: operating plants . 10
5.3 Length of acoustic insulation . 10
5.4 Implications for piping design . 11
5.5 Derivation of overall noise reduction . 12
5.6 Typical noise reduction values . 14
6 Construction of typical acoustic insulation systems . 15
6.1 General . 15
6.2 Cladding . 15
6.2.1 General . 15
6.2.2 Materials for the outer layer . 15
6.2.3 Materials for an additional layer . 16
6.2.4 Vibro-acoustic seals .
...

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 15665
ISO/TC 43/SC 1
Acoustics — Acoustic insulation for
Secretariat: DIN
pipes, valves and flanges
Voting begins on:
2023-09-18
Acoustique — Isolation acoustique des tuyaux, clapets et brides
Voting terminates on:
2023-11-13
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 15665:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 1 ----------------------
ISO/FDIS 15665:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 15665
ISO/TC 43/SC 1
Acoustics — Acoustic insulation for
Secretariat: DIN
pipes, valves and flanges
Voting begins on:
Acoustique — Isolation acoustique des tuyaux, clapets et brides
Voting terminates on:
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: [phone]
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [e-mail]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/FDIS 15665:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 2 ----------------------
ISO/FDIS 15665:2023(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classes of acoustic insulation .3
5 Guidance to the reduction of noise from pipes . 6
5.1 Required insertion loss: design phase steps . 6
5.1.1 Determination of sound pressure levels . 6
5.1.2 Evaluation of sound pressure levels against limits . 7
5.1.3 Determination of sound power levels . 7
5.1.4 Contribution to noise in reverberant spaces or environmental noise . 8
5.2 Required insertion loss: operating plants . 8
5.3 Length of acoustic insulation . 9
5.4 Implications for piping design . 10
5.5 Derivation of overall
...