SIST ISO 1763:2021

Textile floor coverings - Determination of number of tufts and/or loops per unit length and per unit area

This document specifies a method for the determination of the number of tufts and/or loops per unit length and per unit area of a textile floor covering. It is applicable to textile floor coverings with the pile of which consists of tufts and/or loops.

Revêtements de sol textiles - Détermination du nombre de touffes et/ou de boucles par unité de longueur et par unité de surface

Le présent document spécifie une méthode de détermination du nombre de touffes et/ou de boucles par unité de longueur et par unité de surface d'un revêtement de sol textile. Il est applicable aux revêtements de sol textiles à velours constitués de touffes et/ou de boucles.

Preproge - Ugotavljanje števila rezanih in/ali nerezanih zank na dolžinsko in površinsko enoto

General Information

• Status: Published
• Publication Date: 06-Sep-2021
• ICS: 97.150 - Floor coverings
• Technical Committee: ITEK - Textile and textile products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Sep-2021
• Due Date: 06-Nov-2021
• Completion Date: 07-Sep-2021
• Ref Project: ISO 1763:2020 - Textile floor coverings - Determination of number of tufts and/or loops per unit length and per unit area

Relations

• Replaces: SIST ISO 1763:1999 - Carpets -- Determination of number of tufts and/or loops per unit length and per unit area
• Effective Date: 01-Oct-2021

Overview

SIST ISO 1763:2021 is an international standard developed by the International Organization for Standardization (ISO) that specifies a precise method for determining the number of tufts and/or loops per unit length and per unit area in textile floor coverings. This standard applies to textile floor coverings where the pile consists of tufts and/or loops, making it essential for assessing the density and construction quality of carpets, rugs, and artificial turf products. The latest 2020 edition updates and replaces the earlier 1986 version, including newly added methodologies tailored for artificial turf measurement.

Key Topics

• Scope and Applicability
  SIST ISO 1763:2021 is relevant to textile floor coverings with pile formed by tufts or loops, including woven and machine-made carpets and artificial turf.

• Definitions

  • Tuft: A J-shaped, U-shaped, or W-shaped length of yarn forming the pile of the carpet.
  • Loop: Length of pile-forming yarn between two successive fixation points in carpet backing.

• Measurement Principle
  The standard requires counting the tufts and/or loops over a minimum length of 100 mm, ensuring at least 41 complete tufts or loops are included. Measurements are taken both parallel and perpendicular to the carpet’s selvedge (edge).

• Apparatus and Conditioning
  Use of a metric ruler and conditioning of test specimens in controlled temperature and humidity conditions (20 ± 2 °C, 65 ± 4% RH) to ensure accurate and consistent measurements.

• Test Specimen Selection
  Four representative areas should be selected from a sample, each with edges containing at least 41 tufts or loops, avoiding borders within 100 mm of the specimen edges.

• Counting Procedure
  Counting involves measuring the distance covered by the tufts/loops and calculating their density per unit length (both longitudinally and transversely). For non-uniform or hard-to-count carpets, pile shearing before counting is permitted. For artificial turf, counts are performed on the backside, focusing on backing and tuft rows.

• Expression of Results
  The standard provides formulae to calculate the number of tufts/loops per unit length (S and G) and per unit area (e.g., per 10,000 mm² or 0.01 m²). Values should be reported with an accuracy of one decimal place.

• Test Reporting Requirements
  Reports must include confirmation of adherence to ISO 1763, measured values, tuft types, construction forms if non-uniform, and any special observations relevant to the product.

Applications

• Quality Control in Carpet Manufacturing
  Measuring tuft and loop density helps manufacturers ensure consistent pile construction, durability, and aesthetic quality for textile floor coverings.

• Artificial Turf Specification
  The inclusion of a specific method for artificial turf supports manufacturers and installers in verifying tuft density, influencing performance characteristics such as cushioning and wear resistance.

• Product Development and Research
  Accurate tuft and loop counts facilitate comparative analysis between different carpet designs and materials, assisting in innovation and product improvement.

• Compliance and Certification
  Textile testing laboratories and certification bodies utilize ISO 1763 to verify product specifications for regulatory compliance and customer assurance.

Related Standards

• ISO 1957 – Machine-made Textile Floor Coverings - Selection and Cutting of Specimens for Physical Tests
  Guides the preparation of test specimens used in tuft and loop density measurements.

• ISO 2424 – Textile Floor Coverings - Vocabulary
  Provides essential definitions and terminology related to tufted and looped textile floor coverings to ensure consistent understanding and communication.

Keywords

textile floor coverings, tuft density, loop density, tuft counting, carpet measurement, artificial turf testing, pile density, ISO 1763, carpet quality control, textile standards, floor covering testing, tuft and loop measurement method, tufted carpets, woven carpets

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 1763
Third edition
2020-07
Textile floor coverings —
Determination of number of tufts
and/or loops per unit length and per
unit area
Revêtements de sol textiles — Détermination du nombre de touffes et/
ou de boucles par unité de longueur et par unité de surface
Reference number
©
ISO 2020
© ISO 2020
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.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Conditioning of test specimens . 2
7 Test specimens. 3
8 Procedure. 3
9 Expression of results . 4
9.1 Number per unit length . 4
9.2 Number per unit area . 4
10 Test report . 5
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 219, Floor coverings.
This third edition cancels and replaces the second edition (ISO 1763:1986), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— addition of specific methodology for measuring artificial turf products.
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.
iv © ISO 2020 – All rights reserved

---
...

SLOVENSKI STANDARD
01-oktober-2021
Nadomešča:
SIST ISO 1763:1999
Preproge - Ugotavljanje števila rezanih in/ali nerezanih zank na dolžinsko in
površinsko enoto
Textile floor coverings - Determination of number of tufts and/or loops per unit length and
per unit area
Revêtements de sol textiles - Détermination du nombre de touffes et/ou de boucles par
unité de longueur et par unité de surface
Ta slovenski standard je istoveten z: ISO 1763:2020
ICS:
97.150 Talne obloge Floor coverings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 1763
Third edition
2020-07
Textile floor coverings —
Determination of number of tufts
and/or loops per unit length and per
unit area
Revêtements de sol textiles — Détermination du nombre de touffes et/
ou de boucles par unité de longueur et par unité de surface
Reference number
©
ISO 2020
© ISO 2020
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.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Conditioning of test specimens . 2
7 Test specimens. 3
8 Procedure. 3
9 Expression of results . 4
9.1 Number per unit length . 4
9.2 Number per unit area . 4
10 Test report . 5
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 219, Floor coverings.
This third edition cancels and
...

NORME ISO
INTERNATIONALE 1763
Troisième édition
2020-07
Revêtements de sol textiles —
Détermination du nombre de touffes
et/ou de boucles par unité de
longueur et par unité de surface
Textile floor coverings — Determination of number of tufts and/or
loops per unit length and per unit area
Numéro de référence
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2020
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: [phone]
E-mail: [e-mail]
Web: www.iso.org
Publié en Suisse
ii
Sommaire Page
Avant-propos .iv
1 Domaine d’application . 1
2 Références normatives .1
3 Termes et définitions . 1
4 Principe. 2
5 Appareillage . 2
6 Conditionnement des éprouvettes .3
7 Éprouvettes. 3
8 Mode opératoire . 3
9 Expression des résultats . 4
9.1 Nombre par unité de longueur . 4
9.2 Nombre par unité de surface . 4
10 Rapport d’essai . 5
iii
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes
nationaux de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est
en général confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l'ISO participent également aux travaux.
L'ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui
concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a
été rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir
www.iso.org/directives).
L'attention est attirée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable
de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant
les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de
l'élaboration du document sont indiqués dans l'Introduction et/ou dans la liste des déclarations de
brevets reçues par l'ISO (voir www.iso.org/brevets).
Les appellations commerciales éventuellement mentionnées dans le présent document sont données
pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un
engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion
de l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles
techniques au commerce (OTC), voir www.iso.org/avant-propos.
Le présent document a été élaboré par le comité technique ISO/TC 219, Revêtements de sol.
Cette troisième édition annule et remplace la deuxième édition (ISO 1763:1986) qui a fait l’objet d’une
révision technique.
Les principales modifications par rapport à l’édition précédente sont les suivantes:
— ajout d'une méthodologie spécifique afin d'effectuer des mesures sur les produits gazon artificiel.
Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent
document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes
se trouve à l’adresse www.iso.org/members.html.
iv
NORME INTERNATIONALE ISO 1763:2020(F)
Revêtements de sol textiles — Détermination du nombre
de touffes et/ou de boucles pa
...