SIST ISO 2549:1999

Textile floor coverings -- Hand-knotted carpets -- Determination of tuft leg length above the woven ground

Applicable to all hand-knotted carpets with pile capable of being shorn from the woven ground. Not applicable to carpets of different tuft leg lengths, unless the areas can be measured separately. Is applicable to carpets in which the knots are tied by finger or by hook.

Tapis faits à la main -- Détermination de la longueur de jambage de touffe au-dessus du dossier tissé

Ročno vozlane preproge - Ugotavljanje dolžine kraka rezane zanke nad temeljno tkanino

General Information

• Status: Published
• Publication Date: 31-Oct-1999
• ICS: 97.150 - Floor coverings
• Technical Committee: ITEK - Textile and textile products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Nov-1999
• Due Date: 01-Nov-1999
• Completion Date: 01-Nov-1999
• Ref Project: ISO 2549:1972 - Textile floor coverings - Hand-knotted carpets - Determination of tuft leg length above the woven ground

Overview

SIST ISO 2549:1999 is an international standard established by the International Organization for Standardization (ISO) that defines a precise method for determining the tuft leg length of hand-knotted textile floor coverings. This standard is specifically applicable to all hand-knotted carpets where the pile-or tuft legs-can be shorn from the woven ground and applies to knots tied either by finger or hook. It excludes carpets with varying tuft leg lengths unless those areas are measured separately.

The standard aims to ensure consistent, accurate measurement of tuft leg length, a critical parameter that influences carpet thickness, appearance, durability, and performance. Adopted globally, this standard supports manufacturers, testing laboratories, and quality control professionals in maintaining uniformity and reliability in carpet production and testing.

Key Topics

• Scope and Application
  SIST ISO 2549:1999 applies to all hand-knotted carpets with uniform tuft leg length that can be measured above the woven ground. For carpets with different tuft lengths, separate measurements must be taken for each area.

• Definition of Tuft Leg Length
  The tuft leg length is the distance measured from the point where a tuft leg emerges from the woven ground to its free end, excluding the woven base.

• Measurement Principle
  Tuft leg length is determined by inserting flat metal gauges of known thickness into the carpet pile at right angles to the woven ground, selecting the gauge height that corresponds precisely to the tuft leg length.

• Measurement Procedure

  1. Insert metal gauges between two rows of tuft legs ensuring firm contact with the woven ground.
  2. Support the tuft legs vertically using the gauge.
  3. Identify the gauge that fits best and verify by checking adjacent higher and lower gauge sizes.
  4. For carpets with varying tuft heights, measure each level separately.
  5. Perform at least ten measurements across different carpet locations per pile height.

• Apparatus
  The standard specifies using flat metal gauges in 1 mm height increments to accurately gauge tuft leg lengths.

• Reporting Requirements
  Test reports must include details of the measurement method, values for each measurement, and the mean tuft leg length per pile level.

Applications

SIST ISO 2549:1999 is essential for:

• Carpet Manufacturers
  Ensuring consistent pile height quality to meet design specifications and customer expectations.

• Quality Control and Testing Laboratories
  Performing standardized tests for carpet tuft lengths to verify compliance with product standards and contract requirements.

• Product Development
  Comparing different hand-knotted carpets in terms of pile thickness and appearance for product improvement.

• Importers, Exporters, and Regulatory Bodies
  Verifying that hand-knotted carpets conform to international standards, facilitating trade and quality assurance.

By applying this standard, stakeholders can enhance product uniformity, improve manufacturing precision, and provide reliable data for technical evaluation.

Related Standards

• ISO 8543 - Textile floor coverings - Vocabulary
  Provides definitions for textile floor covering terms including carpet construction attributes related to tuft legs.

• ISO 1833 - Textiles - Quantitative chemical analysis
  Relevant for analyzing fiber composition in carpets, complementing physical dimension measurements.

• ISO 7211 series - Textile floor coverings - Methods for determination of dimensions
  Covers additional measurement procedures for carpets including thickness and profile that can complement tuft leg length assessment.

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Keywords: SIST ISO 2549:1999, tuft leg length, hand-knotted carpets, textile floor coverings, carpet pile measurement, woven ground, carpet thickness, carpet quality standards, textile standards, carpet testing, pile height measurement.

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-1999
5RþQRYR]ODQHSUHSURJH8JRWDYOMDQMHGROåLQHNUDNDUH]DQH]DQNHQDGWHPHOMQR
WNDQLQR
Textile floor coverings -- Hand-knotted carpets -- Determination of tuft leg length above
the woven ground
Tapis faits à la main -- Détermination de la longueur de jambage de touffe au-dessus du
dossier tissé
Ta slovenski standard je istoveten z: ISO 2549:1972
ICS:
59.080.60 Tekstilne talne obloge Textile floor coverings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL STANDARD
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MEX.llYHAI’OJlHA5l OP~AHM3ALlM(I IlO CTAHLIAPTM3AllMM .ORGANISATION INTERNATIONALE DE NORMALISATION
Hand-knotted carpets - Determination of tuft leg length
above the woven ground
First edition - 1972-08-15
--
Ref. No. IS0 2549-1972 (E)
UDC 645.12 : 620.1
Descriptors : carpets, dimensional measurement, thickness.
Price based on 1 page
FOREWORD
IS0 (the I nternationai Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 Member Bodies). The work of developing
International Standards is carried out through IS0 Technical Committees. Every
Member Body interested in a subject for which a Technical Committee has been set
up 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.
Draft International Standards adopted by the Technical Committees are circulated
to the Member Bodies for approval before their acceptance as international
Standards by the IS0 Council.
International Standard IS0 2549 was drawn up by Technical Committee
I SO/TC 38, Textiles.
It was approved in January 1972 by the Member Bodies of the following
countries :
Austrai ia Hungary Romania
Belgium India South Africa, Rep. of
Brazil I ran Spain
Bulgaria I reiand Sweden
Czechoslovakia Israel Switzerland
Denmark Japan Thailand
Egypt, Arab Rep. of Netherlands Turkey
Finland New Zealand United Kingdom
France Nor
...

INTERNATIONAL STANDARD
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MEX.llYHAI’OJlHA5l OP~AHM3ALlM(I IlO CTAHLIAPTM3AllMM .ORGANISATION INTERNATIONALE DE NORMALISATION
Hand-knotted carpets - Determination of tuft leg length
above the woven ground
First edition - 1972-08-15
--
Ref. No. IS0 2549-1972 (E)
UDC 645.12 : 620.1
Descriptors : carpets, dimensional measurement, thickness.
Price based on 1 page
FOREWORD
IS0 (the I nternationai Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 Member Bodies). The work of developing
International Standards is carried out through IS0 Technical Committees. Every
Member Body interested in a subject for which a Technical Committee has been set
up 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.
Draft International Standards adopted by the Technical Committees are circulated
to the Member Bodies for approval before their acceptance as international
Standards by the IS0 Council.
International Standard IS0 2549 was drawn up by Technical Committee
I SO/TC 38, Textiles.
It was approved in January 1972 by the Member Bodies of the following
countries :
Austrai ia Hungary Romania
Belgium India South Africa, Rep. of
Brazil I ran Spain
Bulgaria I reiand Sweden
Czechoslovakia Israel Switzerland
Denmark Japan Thailand
Egypt, Arab Rep. of Netherlands Turkey
Finland New Zealand United Kingdom
France Norway U.S.A.
Germany Poland U.S.S.R.
No Member Body expressed disapproval of the document.
0 International Organization for Standardization, 1972 l
Printed in Switzerland
Determination of tuft leg length
Hand-knotted carpets -
above the woven ground
5 PROCEDURE
1 SCOPE AND FIELD OF APPLICATION
This Internation
...

NORME INTERNATIONALE
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MtXL1YHAl’OjltiAH 01’1 AtiM3AIIM~ fl0 ~‘TAHilAPTC13ALlMM .ORGANISATION INTERNATIONALE DE NORMALISATION
Tapis faits à la main - Détermination de la longueur
de jambage de touffe au-dessus du dossier tissé
Première édttion - 1972 -08 -15
~~
Réf. NO : ISO 2549-1972 (F)
CDU 645.12 : 620.1
mesure de dimension, épaisseur.
Descripteurs : tapis,
Prix basé sur 1 page
AVANT-PROPOS
ISO (Organisation Internationale de Normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (Comités Membres KO). L’élaboration de
Normes Internationales est confiée aux Comités Techniques ISO. Chaque Comité
Membre intéressé par une étude a le droit de faire partie du Comité Technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en I iaison avec I’ISO, participent également aux travaux.
Les Projets de Normes Internationales adoptés par les Comités Techniques sont
soumis aux Comités Membres pour approbation, avant leur acceptation comme
Normes Internationales par le Conseil de I’ISO.
La Norme Internationale ISO 2549 a été établie par le Comité Technique
I SO/TC 38, Textiles.
Elle fut approuvée en janvier 1972 par les Comités Membres des pays sui-
vants :
Afrique du Sud, Rép. d’ France Pologne
Hongrie
Allemagne Roumanie
Inde
Australie Royaume-Uni
Belgique Iran Suède
Brésil Irlande
Suisse
Bulgarie Israël
Tchécoslovaquie
Danemark
Japon Thaïlande
Egypte, Rép. arabe d’ Norvège
Turquie
Espagne
Nouvelle-Zélande U.R.S.S.
Finlande
Pays-Bas U.S.A.
Aucun Comité Membre n’a désapprouvé le document.
0 Organisation Internationale de Normalisation, 1972 l
Imprimé en Suisse
50 2549-1972 fF)
NORME INTERNATIONALE
Tapis faits à la main - Détermination de la longueur
de jambage de touffe au-dessus du dossier tissé
1 OBJET ET DOMAINE D’APPLICATION 5 MODE OPÉRATOIRE
La présente Norme Internationale spécifie une méthode de
5.1 Insérer une jauge entre deux rangées de touffes en
détermination de la longueur de jambage de touffe
s’assurant qu’elle est b
...

NORME INTERNATIONALE
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MtXL1YHAl’OjltiAH 01’1 AtiM3AIIM~ fl0 ~‘TAHilAPTC13ALlMM .ORGANISATION INTERNATIONALE DE NORMALISATION
Tapis faits à la main - Détermination de la longueur
de jambage de touffe au-dessus du dossier tissé
Première édttion - 1972 -08 -15
~~
Réf. NO : ISO 2549-1972 (F)
CDU 645.12 : 620.1
mesure de dimension, épaisseur.
Descripteurs : tapis,
Prix basé sur 1 page
AVANT-PROPOS
ISO (Organisation Internationale de Normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (Comités Membres KO). L’élaboration de
Normes Internationales est confiée aux Comités Techniques ISO. Chaque Comité
Membre intéressé par une étude a le droit de faire partie du Comité Technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en I iaison avec I’ISO, participent également aux travaux.
Les Projets de Normes Internationales adoptés par les Comités Techniques sont
soumis aux Comités Membres pour approbation, avant leur acceptation comme
Normes Internationales par le Conseil de I’ISO.
La Norme Internationale ISO 2549 a été établie par le Comité Technique
I SO/TC 38, Textiles.
Elle fut approuvée en janvier 1972 par les Comités Membres des pays sui-
vants :
Afrique du Sud, Rép. d’ France Pologne
Hongrie
Allemagne Roumanie
Inde
Australie Royaume-Uni
Belgique Iran Suède
Brésil Irlande
Suisse
Bulgarie Israël
Tchécoslovaquie
Danemark
Japon Thaïlande
Egypte, Rép. arabe d’ Norvège
Turquie
Espagne
Nouvelle-Zélande U.R.S.S.
Finlande
Pays-Bas U.S.A.
Aucun Comité Membre n’a désapprouvé le document.
0 Organisation Internationale de Normalisation, 1972 l
Imprimé en Suisse
50 2549-1972 fF)
NORME INTERNATIONALE
Tapis faits à la main - Détermination de la longueur
de jambage de touffe au-dessus du dossier tissé
1 OBJET ET DOMAINE D’APPLICATION 5 MODE OPÉRATOIRE
La présente Norme Internationale spécifie une méthode de
5.1 Insérer une jauge entre deux rangées de touffes en
détermination de la longueur de jambage de touffe
s’assurant qu’elle est b
...