Resilient floor coverings - Determination of apparent density of composition cork

ISO 3850:2004 describes a method for determining the apparent density of agglomerated cork.

Revêtements de sols résilients — Détermination de la masse volumique de l'aggloméré de liège

L'ISO 3850:2004 décrit une méthode de détermination de la masse volumique de l'aggloméré de liège.

General Information

Status
Published
Publication Date
31-Mar-2004
Technical Committee
ISO/TC 87 - Cork
Drafting Committee
ISO/TC 87 - Cork
Current Stage
9093 - International Standard confirmed
Start Date
22-Feb-2022
Completion Date
13-Dec-2025

Overview

ISO 3850:2004 is an international standard developed by the International Organization for Standardization (ISO) that specifies the method for determining the apparent density of composition cork used in resilient floor coverings. This standard provides a reliable and consistent approach to measuring the density of agglomerated cork, which is crucial for quality control and product specification in the flooring industry.

The standard outlines the procedure for sampling, conditioning, measuring, and calculating the apparent density, ensuring uniformity across manufacturers and testing laboratories globally. The method is based on the principles established in ISO 3810 and harmonized with the European standard EN 672:1996.

Key Topics

  • Apparent Density Determination
    The standard defines apparent density as the ratio of mass to volume of the cork sample, expressed in kilograms per cubic meter (kg/m³). Accurate density measurement affects product performance attributes such as durability, insulation, and resilience.

  • Test Piece Preparation and Sampling
    The methodology requires representative sampling and preparation of at least five test tiles, avoiding the first and last tiles in a pack to ensure sample integrity.

  • Conditioning Requirements
    Samples must be conditioned at (23 ± 2)°C and relative humidity (50 ± 5)% for a minimum of 24 hours to achieve stable moisture content and dimensional stability prior to testing.

  • Measurement Procedures
    The standard specifies the use of measuring devices conforming to EN 427 (for side length, squareness, and straightness) and EN 428 (for thickness). The balance used for weighing must have an accuracy within 0.5 grams.

  • Calculation of Apparent Density
    Apparent density (ρ) is calculated by dividing the mass (M) of the test piece by its volume (V), with units converted appropriately to kg/m³. The final reported value is the average of five determinations.

  • Test Report Requirements
    Test reports must reference ISO 3850, include full product identification, sample history, mean apparent density, and note any deviations from the testing procedure.

Applications

ISO 3850:2004 is critical in various practical contexts, including:

  • Quality Control in Flooring Manufacturing
    Ensuring consistent density in agglomerated cork influences mechanical properties, wear resistance, and overall product quality.

  • Product Specification and Compliance
    Manufacturers and regulatory bodies rely on this standard to verify compliance with performance and safety requirements for resilient cork flooring products.

  • Material Research and Development
    Provides a standardized base for innovation in cork composites, allowing comparison across formulations and production methods.

  • Inspection and Certification
    Third-party laboratories use ISO 3850 to certify product density, supporting market access and consumer confidence.

  • Environmental and Sustainability Assessment
    Consistent density measurement contributes to lifecycle assessments by providing precise material data for carbon footprint and resource efficiency analyses.

Related Standards

  • ISO 3810: Provides foundational methods for measuring side length, squareness, straightness, and thickness of resilient flooring tiles, referenced directly within ISO 3850 for dimensional assessment.

  • EN 672:1996: The European equivalent method for determining apparent density of agglomerated cork, adopted by ISO 3850 to promote harmonization between international and European standards.

  • EN 427: Details determination of side length, squareness, and straightness of tiles, forming part of the measurement apparatus requirements in ISO 3850.

  • EN 428: Specifies the determination of overall thickness for resilient floor coverings, also referenced as essential apparatus for ISO 3850 testing.

Summary

ISO 3850:2004 is an essential international standard that defines a precise and standardized method to determine the apparent density of composition cork used in resilient floor coverings. By following this standard, stakeholders in the flooring industry-including manufacturers, quality controllers, and certifiers-can ensure accurate density measurements that underpin product quality, compliance, and market acceptance. The use of standardized sampling, conditioning, measurement, and calculation procedures facilitates consistency in reporting apparent density, promoting reliable performance evaluation and fostering international trade of cork flooring products.

Standard

ISO 3850:2004 - Resilient floor coverings - Determination of apparent density of composition cork

English language
3 pages
sale 15% off
Preview
sale 15% off
Preview
Standard

ISO 3850:2004 - Revetements de sols résilients -- Détermination de la masse volumique de l'aggloméré de liege

French language
3 pages
sale 15% off
Preview
sale 15% off
Preview

Frequently Asked Questions

ISO 3850:2004 is a standard published by the International Organization for Standardization (ISO). Its full title is "Resilient floor coverings - Determination of apparent density of composition cork". This standard covers: ISO 3850:2004 describes a method for determining the apparent density of agglomerated cork.

ISO 3850:2004 describes a method for determining the apparent density of agglomerated cork.

ISO 3850:2004 is classified under the following ICS (International Classification for Standards) categories: 79.100 - Cork and cork products. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase ISO 3850:2004 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of ISO standards.

Standards Content (Sample)


INTERNATIONAL ISO
STANDARD 3850
First edition
2004-04-01
Resilient floor coverings —
Determination of apparent density of
composition cork
Revêtements de sol résilients — Détermination de la masse volumique
de l'aggloméré de liège
Reference number
©
ISO 2004
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

©  ISO 2004
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2004 – All rights reserved

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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 3850 was prepared by the European Committee for Standardization as EN 672 and was adopted, under a
special “fast-track procedure”, by Technical Committee ISO/TC 87, Cork, in parallel with its approval by the
ISO member bodies.
For the purposes of international standardization, a list of corresponding International and European
Standards for which equivalents are not given in EN 672 has been added as Annex ZZ.
Page 2
EN 672:1996
Foreword
This European Standard has been prepared by Technical Committee CEN/TC 134 “Resilient
and textile floor coverings” , the secretariat of which is held by BSI.

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 June 1997, and conflicting national
standards shall be withdrawn at the latest by June 1997.
...


NORME ISO
INTERNATIONALE 3850
Première édition
2004-04-01
Revêtements de sol résilients —
Détermination de la masse volumique de
l'aggloméré de liège
Resilient floor coverings — Determination of apparent density of
composition cork
Numéro de référence
©
ISO 2004
PDF – Exonération de responsabilité
Le présent fichier PDF peut contenir des polices de caractères intégrées. Conformément aux conditions de licence d'Adobe, ce fichier
peut être imprimé ou visualisé, mais ne doit pas être modifié à moins que l'ordinateur employé à cet effet ne bénéficie d'une licence
autorisant l'utilisation de ces polices et que celles-ci y soient installées. Lors du téléchargement de ce fichier, les parties concernées
acceptent de fait la responsabilité de ne pas enfreindre les conditions de licence d'Adobe. Le Secrétariat central de l'ISO décline toute
responsabilité en la matière.
Adobe est une marque déposée d'Adobe Systems Incorporated.
Les détails relatifs aux produits logiciels utilisés pour la création du présent fichier PDF sont disponibles dans la rubrique General Info
du fichier; les paramètres de création PDF ont été optimisés pour l'impression. Toutes les mesures ont été prises pour garantir
l'exploitation de ce fichier par les comités membres de l'ISO. Dans le cas peu probable où surviendrait un problème d'utilisation,
veuillez en informer le Secrétariat central à l'adresse donnée ci-dessous.

©  ISO 2004
Droits de reproduction réservés. Sauf prescription différente, 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 et les microfilms, sans l'accord écrit
de l'ISO à l'adresse ci-après ou du comité membre de l'ISO dans le pays du demandeur.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax. + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Publié en Suisse
ii © ISO 2004– Tous droits réservés

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 (CEI) en ce qui concerne la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI,
Partie 2.
La tâche principale des comités techniques est d'élaborer les Normes internationales. Les projets de Normes
internationales adoptés par les comités techniques sont soumis aux comités membres pour vote. Leur
publication comme Normes internationales requiert l'approbation de 75 % au moins des comités membres
votants.
L'attention est appelée 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.
L'ISO 3850 a été élaborée par le Comité Européen de Normalisation (en tant que EN 672) et a été adoptée,
selon une procédure spéciale par «voie express», par le comité technique ISO/TC 87, Liège, parallèlement à
son approbation par les comités membres de l'ISO.
Aux fins de normalisation internationale, une liste des Normes internationales et européennes
correspondantes pour lesquelles des équivalents ne sont pas donnés dans l'EN 672 a été ajoutée en tant
qu'Annexe ZZ.
Page 2
EN 672:1996
Avant-propos
La présente norme européenne a été élaborée par le Comité Technique CEN/TC 134
''Revêtements de sol souples et revêtements de sol textiles'' dont le secrétariat est tenu par le BSI.

Cette norme européenne devra recevoir le statut de norme nationale, soit par publication d'un
texte identique, soit par entérinement, au plus tard en
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

Loading comments...