EN 13844:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Textilien - Monofile - Bestimmung des WärmeschrumpfverhaltensTextiles - Monofilaments - Détermination du retrait a la chaleurTextiles - Monofilaments - Determination of thermal shrinkage59.060.20Umetna vlaknaMan-made fibresICS:Ta slovenski standard je istoveten z:EN 13844:2002SIST EN 13844:2003en01-februar-2003SIST EN 13844:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13844December 2002ICS 59.060.20English versionTextiles - Monofilaments - Determination of thermal shrinkageTextiles - Monofilaments - Détermination du retrait à lachaleurTextilien - Monofile - Bestimmung desWärmeschrumpfverhaltensThis European Standard was approved by CEN on 23 October 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13844:2002 ESIST EN 13844:2003

Recommended conditioning time versus diameter.14Annex B (informative)
An example of a procedure for marking the length LO and measuring the lengthLS under a pretension.15SIST EN 13844:2003

Thermal shrinkage is indicated by apointer on a scale or by an electronic indicator.4.2 Apparatus4.2.1A thermal shrinkage chamber (see Figure 1) with the following specification:a) minimum heating length of 200 mm;b) distance between heating plates of 3 mm to 10 mm;c) operating temperature in the range 110 °C to 250 °C;d) temperature stability with a limit deviation of ± 2 °C;e) shrinkage scale with atolerance of 0,1 % between 0 and 10 % and of 0,5 % above 10 %;f) constant temperature distribution in at least 80 % of the oven length.Key1
Shrinkage scale2
Length of chamber3
Monofilament4
Fixed clamp5
Tension mass6
Heating plates7
Calibration point8
Distance between platesFigure 1 — An example of testing thermal shrinkage under tensionSIST EN 13844:2003

A minimum of three test specimens is thentaken from the package;b) Before testing, the test specimens shall be conditioned in the standard atmosphere, as described in EN 2
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