EN ISO 9902-6:2021

Textile machinery - Noise test code - Part 6: Fabric manufacturing machinery (ISO 9902-6:2018)

This document covers the different types of weaving and knitting machines defined in ISO 5247 (all parts)[2] and ISO 7839[3], respectively.
It is applicable to:
       full-width weaving machines with weft insertion by:
       shuttles;
       rigid, telescopic or flexible rapiers;
       projectiles;
       hydraulic (waterjet) or by pneumatic (airjet) nozzle;
       narrow fabric weaving machines with weft insertion by shuttles or needles;
       jacquard machines;
       knitting machinery including:
       circular knitting;
       flat bed knitting;
       warp knitting;
       raschel;
       cotton (flat weft weaving);
       other fabric manufacturing machines e.g.:
       multi-phase weaving machines;
       circular weaving machines;
       stitch bonding machines.
NOTE       Because of the high requirements on measurement conditions, grade 1 methods are normally not feasible for textile machinery.

Textilmaschinen - Geräuschmessverfahren - Teil 6: Maschinen zur Hertsellung textiler Flächengebilde (ISO 9902-6:2018)

Dieses Dokument behandelt die verschiedenen Arten von Web- und Strickmaschinen, die in ISO 5247 (alle Teile) [2] bzw. ISO 7839 [3] entsprechend festgelegt sind.
Es gilt für:
- Breitwebmaschinen mit Schusseintrag durch:
- Schützen;
- starre, teleskopartige oder flexible Greifer;
- Projektile;
- hydraulische (Wasserdüsen) oder pneumatische (Luftdüsen) Düsen;
- Bandwebmaschinen mit Schusseintrag durch Schiffchen oder Nadeln;
- Jacquardeinrichtungen;
- Strick- und Wirkmaschinen einschließlich:
- Rundstrickmaschinen;
- Flachstrickmaschinen;
- Kettenwirkmaschinen;
- Raschelmaschinen;
- Cottonmaschinen (Flachkulierwirkmaschinen);
- andere Webmaschinen, z. B.:
- Mehrphasenwebmaschinen;
- Rundwebmaschinen;
- Nähwirkmaschinen.
ANMERKUNG   Aufgrund der hohen Anforderungen an die Bedingungen der Messung sind Verfahren der Genauig¬keitsklasse 1 für Textilmaschinen üblicherweise nicht anwendbar.

Matériel pour l'industrie textile - Code d'essai acoustique - Partie 6: Machines de production des étoffes (ISO 9902-6:2018)

Le présent document couvre les différents types de machines de tissage et de tricotage définies, respectivement, dans l'ISO 5247 (toutes les parties)[2] et l'ISO 7839[3].
Il est applicable :
-      aux machines à tisser pleine largeur à insertion de la trame :
-     à lances ;
-     rigides, télescopiques ou flexibles ;
-     à projectiles ;
-     par jet hydraulique (jet d'eau) ou par jet pneumatique (jet d'air) ;
-      aux machines à tisser les rubans à insertion de la trame par navettes ou par aiguilles ;
-      aux machines Jacquard ;
-      aux machines à tricoter :
-     circulaires ;
-     rectilignes,
-     à mailles jetées ;
-     Raschel ;
-     coton (machines à tricoter rectilignes à maille) ;
-      à d'autres machines de fabrication de tissus, par exemple :
-     machines à tisser multiphasées ;
-     machines à tisser circulaires ;
-     machines de liage par fil.

Tekstilni stroji - Preskusni postopki za merjenje hrupa - 6. del: Stroji za izdelavo tkanin (ISO 9902-6:2018)

General Information

• Status: Published
• Publication Date: 12-Jan-2021
• Withdrawal Date: 30-Jul-2021
• ICS: 17.140.20 - Noise emitted by machines and equipment
• ICS: 59.120.01 - Textile machinery in general
• ICS: 59.120.30 - Looms. Weaving machines
• Technical Committee: CEN/TC 214 - Textile machinery and allied machinery
• Drafting Committee: CEN/TC 214/WG 4 - Measurement and reduction of noise
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 13-Jan-2021
• Completion Date: 13-Jan-2021
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: SIST EN ISO 9902-6:2021 - Textile machinery - Noise test code - Part 6: Fabric manufacturing machinery (ISO 9902-6:2018)

Relations

• Replaces: EN ISO 9902-6:2001/A1:2009 - Textile machinery - Noise test code - Part 6: Fabric manufacturing machinery - Amendment 1 (ISO 9902-6:2001/Amd 1:2009)
• Effective Date: 20-Jan-2021
• Replaces: EN ISO 9902-6:2001 - Textile machinery - Noise test code - Part 6: Fabric manufacturing machinery (ISO 9902-6:2001)
• Effective Date: 20-Jan-2021
• Replaces: EN ISO 9902-6:2001/A2:2014 - Textile machinery - Noise test code - Part 6: Fabric manufacturing machinery (ISO 9902-6:2001/Amd 2:2014)
• Effective Date: 06-Dec-2017

Overview

EN ISO 9902-6:2021 - Textile machinery - Noise test code - Part 6: Fabric manufacturing machinery (ISO 9902-6:2018) is a CEN-endorsed part of the ISO 9902 series that specifies acoustic test procedures for a wide range of fabric manufacturing machines. It applies to full‑width and narrow weaving machines, jacquard machines, and knitting machinery (circular, flat bed, warp, raschel, cotton/flat weft), plus other fabric production equipment (multi‑phase, circular weaving, stitch bonding). The document defines how to measure and report noise emission, including sound power levels and emission sound pressure levels at work stations.

Key topics and technical requirements

• Scope & test object definition: Identifies machine types covered and references ISO 5247 and ISO 7839 for machine classifications.
• Sound power determination: Requires measurement by sound intensity (ISO 9614‑1/2) or by sound pressure on prescribed measurement surfaces using ISO 3744, ISO 3747 or ISO 3746 where appropriate.
• Emission sound pressure at work station: Specifies methods for measuring A‑weighted emission sound pressure levels using ISO 11201, ISO 11204 or ISO 11202 (when others are impractical).
• Selection of measurement positions: Defines work station and specified positions for different machine types (weaving, knitting, narrow fabric, circular machines, jacquard).
• Installation and operating conditions: Stresses reproducible mounting and operating states to ensure valid, repeatable acoustic results.
• Measurement uncertainty & reporting: Requires recording operating conditions, uncertainties, and standardized reporting formats for declaration and verification of noise emission values.
• Practical constraints: Notes that grade 1 methods (highest precision) are often not feasible for textile machinery due to measurement environment and machine size; large machines may be designated “L”.

Practical applications and users

Who uses EN ISO 9902-6:2021:

• Textile machinery manufacturers (OEMs) - for product development, noise reduction and to declare noise emission values.
• Acoustic test laboratories - to perform compliant sound power and emission sound pressure measurements.
• Safety & compliance officers - to evaluate worker exposure and meet regulatory or procurement requirements.
• Design and R&D engineers - to identify noise sources and implement mitigation (enclosures, damping, layout changes).
• Purchasers and specifiers - to compare machinery based on standardized noise data.

Practical benefits:

• Enables consistent acoustic testing across manufacturers and labs.
• Supports manufacturer declarations used in specifications, CE marking contexts and workplace noise assessments.
• Helps target noise control measures in fabric manufacturing environments.

Related standards

• ISO 9902‑1 (Common requirements for textile machinery noise testing)
• ISO 9614‑1/2 (Sound intensity methods)
• ISO 3744 / ISO 3746 / ISO 3747 (Sound power by sound pressure)
• ISO 11201 / ISO 11202 / ISO 11204 (Emission sound pressure at work stations)

Keywords: EN ISO 9902-6:2021, textile machinery noise test code, fabric manufacturing machinery, weaving machines, knitting machines, sound power level, emission sound pressure, acoustic testing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2021
Nadomešča:
SIST EN ISO 9902-6:2002
SIST EN ISO 9902-6:2002/A1:2009
SIST EN ISO 9902-6:2002/A2:2014
Tekstilni stroji - Preskusni postopki za merjenje hrupa - 6. del: Stroji za izdelavo
tkanin (ISO 9902-6:2018)
Textile machinery - Noise test code - Part 6: Fabric manufacturing machinery (ISO 9902-
6:2018)
Textilmaschinen - Geräuschmessverfahren - Teil 6: Maschinen zur Herstellung textiler
Flächengebilde (ISO 9902-6:2018)
Matériel pour l'industrie textile - Code d'essai acoustique - Partie 6: Machines de
production des étoffes (ISO 9902-6:2018)
Ta slovenski standard je istoveten z: EN ISO 9902-6:2021
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
59.120.30 Statve. Tkalni stroji Looms. Weaving machines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 9902-6
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2021
EUROPÄISCHE NORM
ICS 17.140.20; 59.120.30 Supersedes EN ISO 9902-6:2001
English Version
Textile machinery - Noise test code - Part 6: Fabric
manufacturing machinery (ISO 9902-6:2018)
Matériel pour l'industrie textile - Code d'essai Textilmaschinen - Geräuschmessverfahren - Teil 6:
acoustique - Partie 6: Machines de production des Maschinen zur Hertsellung textiler Flächengebilde (ISO
étoffes (ISO 9902-6:2018) 9902-6:2018)
This European Standard was approved by CEN on 23 December 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9902-6:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 9902-6:2021) has been prepared by Technical Committee ISO/TC 72 "Textile
machinery and accessories" in collaboration with Technical Committee CEN/TC 214 “Textile machinery
and accessories” the secretariat of which is held by SNV.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by July 2021, and conflicting national standards shall be
withdrawn at the latest by July 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 9902-6:2001.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 9902-6:2018 has been approved by CEN as EN ISO 9902-6:2021 without any
modification.
INTERNATIONAL ISO
STANDARD 9902-6
Second edition
2018-08
Textile machinery — Noise test code —
Part 6:
Fabric manufacturing machinery
Matériel pour l'industrie textile — Code d'essai acoustique —
Partie 6: Machines de production des étoffes
Reference number
ISO 9902-6:2018(E)
©
ISO 2018
ISO 9902-6:2018(E)
© ISO 2018
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]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

ISO 9902-6:2018(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Defining the test object . 2
5 Sound power level determination . 2
5.1 International Standards required for basic measurements . 2
5.1.1 General. 2
5.1.2 Determination of sound power level by measuring sound intensity . 2
5.1.3 Determination of sound power level using emission sound pressure levels
on a measurement surface . 3
5.2 Very large machines . 3
6 Emission sound pressure level determination . 3
6.1 International Standards required for basic measurements . 3
6.2 Selection of work station and other specified positions . 3
6.2.1 General. 3
6.2.2 Weaving machinery other than circular and narrow fabric machines . . 3
6.2.3 Flatbed knitting machine, straight-bar knitting machine and flat warping
knitting machine . 4
6.2.4 Circular weaving and circular knitting machines . 4
6.2.5 Narrow fabric weaving machines . 5
6.2.6 Jacquard machines . 5
7 Installation and mounting conditions . 6
8 Operating conditions . 6
9 Measurement uncertainties . 6
10 Information to be recorded . 6
11 Information to be reported . 6
12 Declaration and verification of noise emission values . 7
Bibliography .16
ISO 9902-6:2018(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 72, Textile machinery and accessories,
Subcommittee SC 8, Safety requirements for textile machinery.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
This second edition cancels and replaces the first edition (ISO 9902-6:2001), which has been technically
revised. It also incorporates the Amendments ISO 9902-6:2001/Amd 1:2009 and ISO 9902-6:2001/
Amd 2:2014.
The main changes compared to the previous edition are as follows:
— the normative references have been updated;
— Table 1 has been revised;
— editorial changes have been made.
This document is intended to be used in conjunction with ISO 9902-1.
A list of all parts in the ISO 9902 series can be found on the ISO website.
iv © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 9902-6:2018(E)
Textile machinery — Noise test code —
Part 6:
Fabric manufacturing machinery
1 Scope
This document covers the different types of weaving and knitting machines defined in ISO 5247 (all
2 3
parts)[ ] and ISO 7839[ ], respectively.
It is applicable to:
— full-width weaving machines with weft insertion by:
— shuttles;
— rigid, telescopic or flexible rapiers;
— projectiles;
— hydraulic (waterjet) or by pneumatic (airjet) nozzle;
— narrow fabric weaving machines with weft insertion by shuttles or needles;
— jacquard machines;
— knitting machinery including:
— circular knitting;
— flat bed knitting;
— warp knitting;
— raschel;
— cotton (flat weft weaving);
— other fabric manufacturing machines e.g.:
— multi-phase weaving machines;
— circular weaving machines;
— stitch bonding machines.
NOTE Because of the high requirements on measurement conditions, grade 1 methods are normally not
feasible for textile machinery.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 3744, Acoustics — Determination of sound power levels and sound energy levels of noise sources using
sound pressure — Engineering methods for an essentially free field over a reflecting plane
ISO 9902-6:2018(E)
ISO 3746, Acoustics — Determination of sound power levels and sound energy levels of noise sources using
sound pressure — Survey method using an enveloping measurement surface over a reflecting plane
ISO 3747, Acoustics — Determination of sound power levels and sound energy levels of noise sources using
sound pressure — Engineering/survey methods for use in situ in a reverberant environment
ISO 8188, Textile machinery and accessories — Pitches of knitting machines
ISO 9614-1, Acoustics — Determination of sound power levels of noise sources using sound intensity —
Part 1: Measurement at discrete points
ISO 9614-2, Acoustics — Determination of sound power levels of noise sources using sound intensity —
Part 2: Measurement by scanning
ISO 9902-1, Textile machinery — Noise test code — Part 1: Common requirements
ISO 11201, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound
pressure levels at a work station and at other specified positions in an essentially free field over a reflecting
plane with negligible environmental corrections
ISO 11202, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound
pressure levels at a work station and at other specified positions applying approximate environmental
corrections
ISO 11204, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound
pressure levels at a work station and at other specified positions applying accurate environmental
corrections
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 9902-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 Defining the test object
See Tables 1 to 3 and ISO 9902-1:2001, Clause 4.
5 Sound power level determination
5.1 International Standards required for basic measurements
5.1.1 General
See ISO 9902-1:2001, 5.1.
5.1.2 Determination of sound power level by measuring sound intensity
Determination of the A-weighted sound power level, L , using sound intensity measurements shall be
WA
in accordance with ISO 9614-1 (discrete points) or ISO 9614-2 (scanning).
2 © ISO 2018 – All rights reserved

ISO 9902-6:2018(E)
5.1.3 Determination of sound power level using emission sound pressure levels on a
measurement surface
Determination of the A-weighted sound power level, L , by measurement of A-weighted emiss
...