SIST EN ISO 11501:2004
(Main)Plastics - Film and sheeting - Determination of dimensional change on heating (ISO 11501:1995)
- Abstract
Relates to a method of determining the dimensional change in the longitudinal and transverse directions, of plastics films and sheeting on heating. This method may be applied to plastics sheets, whether qualified as thermoshrinking or not.
- Status
- Published
- Publication Date
- 30-Sep-2004
- Technical Committee
- IPMA - Polimer materials and products
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Oct-2004
- Due Date
- 01-Oct-2004
- Completion Date
- 01-Oct-2004
SIST EN ISO 11501:2004 is the Slovenian standard published by SIST and identical to EN ISO 11501:2004. It specifies a test method for measuring dimensional change in plastics film and sheeting when heated, in both the longitudinal and transverse directions. It is used by people who need to check how film or sheet behaves under heating, including plastics sheets whether or not they are thermoshrinking.
What does SIST EN ISO 11501:2004 specify?
SIST EN ISO 11501:2004 specifies a method for determining dimensional change on heating in plastics films and sheeting. The method also applies to plastic sheets up to 1 mm thick, whether they are intended to shrink with heat or not.
The document is organized into Clause 1 to Clause 9, plus Annex A and Annex ZA.
| Annex | What it covers |
|---|---|
| Annex A | Informative examples of heating times and temperatures for different materials |
| Annex ZA | Normative references to international publications and their European equivalents |
What are the key requirements of SIST EN ISO 11501:2004?
SIST EN ISO 11501:2004 measures change separately in the longitudinal and transverse directions, so the result shows how the material behaves along and across the sheet. That matters in practice because shrinkage or elongation is often directional, and a single value would hide that difference.
Clause 2 and Annex ZA - conditioning reference: The test uses ISO 291 for conditioning and testing atmospheres. Samples are conditioned for at least 2 h before cutting and measuring, and after heating they are conditioned again for at least 30 min in the same atmosphere. This helps make results comparable between laboratories.
Clauses 4 and 6 - heating setup: The method uses a circulating-air oven and a metal container with a kaolin bed about 20 mm deep. The oven must keep the test assemblies within the specified temperature limits, circulate air at a rate that gives at least six air changes per hour, and keep assemblies separated from each other and from the oven walls. In practice, this keeps heating uniform.
Clause 5 - test specimens: Prepare three specimens, about 120 mm x 120 mm, taken from the centre and two sides of the film or sheet, at least 50 mm from the edge. Mark the longitudinal and transverse directions on each specimen. This gives a small set of samples that represents different areas of the material.
Clause 5 and Clause 6 - measurement before and after heating: Mark two gauge lengths on each specimen, one in each direction, and measure them to the nearest 0.5 mm before heating and again after heating. The specimen is dusted with kaolin, placed flat on the kaolin bed, heated for the specified time, and then reconditioned before remeasurement. This is the core of the test.
Clause 7 - calculation of change: The change in each gauge length is calculated as a percentage of the original length. The standard treats negative values as shrinkage and positive values as elongation, then reports the mean value for the three specimens rounded to one decimal place. That gives a result that can be compared against a product specification.
Annex A and Clause 6 - heating conditions: Annex A gives example heating times and temperatures for different materials, including non-shrink film and sheeting and materials intended to be thermoshrunk or thermoformed. These examples help users choose a starting point for the test when setting up a method for a specific material.
Clause 8 and Clause 9 - reporting and precision: The document states that precision is not known because inter-laboratory data are not available. The test report must identify the standard, the material, the test temperature, the heating time, the mean percentage change, the direction of the change, and the test date. This supports traceability.
What terms does SIST EN ISO 11501:2004 define?
- Longitudinal (machine) direction - the direction along the film or sheet, usually the processing direction.
- Transverse direction - the direction across the width of the film or sheet, perpendicular to the longitudinal direction.
- Gauge length - the marked measuring span used to compare length before and after heating.
- Kaolin bed - the layer of kaolin used to support the specimen flat during heating.
- Thermoshrinking - a material intended to shrink when heated.
- Thermoformed - a material intended to be shaped by heating.
- Shrinkage - a negative dimensional change after heating.
- Elongation - a positive dimensional change after heating.
Who uses SIST EN ISO 11501:2004?
SIST EN ISO 11501:2004 is used by testing laboratories, plastics film and sheet manufacturers, quality control teams, and buyers or specifiers who need a defined method for checking thermal dimensional stability. It is also useful in incoming inspection and product comparison, where the question is whether a film or sheet changes size in a controlled way when heated.
What changed in SIST EN ISO 11501:2004 from the previous edition?
SIST EN ISO 11501:2004 carries ISO 11501:1995 into the European system as EN ISO 11501:2004, and the endorsement notice states that the text was approved without modifications.
Which standards are used with SIST EN ISO 11501:2004?
The only normative reference named is ISO 291, Plastics - Standard atmospheres for conditioning and testing. It provides the conditioning atmosphere used before specimen preparation and after heating, so the dimensional-change results are based on specimens in a controlled condition. Annex ZA maps this reference to EN ISO 291:1997.
What does the SIST EN ISO 11501:2004 document contain?
The document contains a test principle, apparatus requirements, specimen preparation, the heating and remeasurement procedure, the calculation of percentage change, a precision note, and a test report checklist. It also includes Figure 1 showing specimen dimensions and gauge lengths.
Annex A provides example heating times and recommended temperatures for several material types, which helps users choose test conditions for routine work or method setup. Annex ZA lists the normative reference and its European equivalent, which is useful for users working under the European standard system.
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
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Frequently Asked Questions
SIST EN ISO 11501:2004 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Plastics - Film and sheeting - Determination of dimensional change on heating (ISO 11501:1995)". This standard covers: Relates to a method of determining the dimensional change in the longitudinal and transverse directions, of plastics films and sheeting on heating. This method may be applied to plastics sheets, whether qualified as thermoshrinking or not.
Relates to a method of determining the dimensional change in the longitudinal and transverse directions, of plastics films and sheeting on heating. This method may be applied to plastics sheets, whether qualified as thermoshrinking or not.
SIST EN ISO 11501:2004 is classified under the following ICS (International Classification for Standards) categories: 83.140.10 - Films and sheets. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 11501:2004 has the following relationships with other standards: It is inter standard links to SIST EN 602:1998, SIST EN 15354:2022, SIST-TS CEN/TS 15354:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN ISO 11501:2004 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2004
Polimerni materiali - Filmi in folije - Ugotavljanje spremembe mer pri segrevanju
(ISO 11501:1995)
Plastics - Film and sheeting - Determination of dimensional change on heating (ISO
11501:1995)
Kunststoffe - Folien und Bahnen - Bestimmung der Maßänderung beim Erwärmen (ISO
11501:1995)
Plastiques - Film et feuille - Détermination de la variation dimensionnelle apres chauffage
(ISO 11501:1995)
Ta slovenski standard je istoveten z: EN ISO 11501:2004
ICS:
83.140.10 Filmi in folije Films and sheets
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 11501
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2004
ICS 83.140.10
English version
Plastics - Film and sheeting - Determination of dimensional
change on heating (ISO 11501:1995)
Plastiques - Film et feuille - Détermination de la variation
dimensionnelle après chauffage (ISO 11501:1995)
This European Standard was approved by CEN on 21 June 2004.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11501:2004: E
worldwide for CEN national Members.
Foreword
The text of ISO 11501:1995 has been prepared by Technical Committee ISO/TC 61 "Plastics” of
the International Organization for Standardization (ISO) and has been taken over as EN ISO
11501:2004 by Technical Committee CEN/TC 249 "Plastics", the secretariat of which is held by
IBN.
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 January 2005, and conflicting national
standards shall be withdrawn at the latest by January 2005.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice
The text of ISO 11501:1995 has been approved by CEN as EN ISO 11501:2004 without any
modifications.
NOTE Normative references to International Standards are listed in Annex ZA (normative).
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of
any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications, indicated
by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 291 1997 Plastics - Standard atmospheres for EN ISO 291 1997
conditioning and testing
INTERNATIONAL
ISO
STANDARD
First edition
1995-09-15
Plastics - Film and sheeting -
Determination of dimensional Change on
heating
Plas tiques - Film et feuille - Determination de Ia Variation
dimensionnelle apr& chauffage
Reference number
ISO 11501:1995(E)
ISO 11501:1995(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. Esch 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.
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.
International Standard ISO 11501 was prepared by Technical Committee
lSO/TC 61, Plastics, Subcommittee SC 11, Products.
Annex A of this International Standard is for information only.
0 ISO 1995
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, rncluding photocopying and
microfilm, without Permission in writing from the publisher.
International Organr
...