EN ISO 10363:1995

Hot-melt adhesives - Determination of thermal stability (ISO 10363:1992)

The method is based on placing a stainless steel or glass vessel in an oil bath or oven, adding a sufficient quantity of the adhesive to the vessel, melting the sample, measuring the viscosity at the operating temperature and the softening point, repeating these operations at regular time intervals of between 4 h and 6 h, until the time for stopping the test according to pre-determined criteria is reached, and observing and recording, at the time that each measurement is taken, the following phenomena: skin formation, fumes, phase separation, gelation, change in colour.

Schmelzklebstoffe - Bestimmung der thermischen Beständigkeit (ISO 10363:1992)

Diese Internationale Norm beschreibt ein Verfahren zur Bestimmung der thermischen beständigkeit von nichtreaktiven Schmelzklebstoffen bei Temperaturen bis zu 260 °C.

Adhésifs thermofusibles - Détermination de la stabilité thermique (ISO 10363:1992)

La présente Norme internationale prescrit une méthode pour la détermination de la stabilité thermique jusqu'à des températures de 260 °C d'adhésifs thermofusibles non réactifs.

Talilna lepila (termolepila) - Določanje toplotne obstojnosti (ISO 10363:1992)

General Information

• Status: Published
• Publication Date: 20-Jun-1995
• ICS: 83.180 - Adhesives
• Technical Committee: CEN/TC 193 - Adhesives
• Drafting Committee: CEN/TC 193/WG 1 - General terminology - General physical and chemical tests
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 22-Jan-2007
• Completion Date: 22-Jan-2007
• Ref Project: SIST EN ISO 10363:1998 - Hot-melt adhesives - Determination of thermal stability (ISO 10363:1992)

Overview

EN ISO 10363:1995 specifies a standardized method for the determination of the thermal stability of hot-melt adhesives. This international standard, prepared by ISO Technical Committee 61, Sub-Committee 11, focuses on non-reactive hot-melt adhesives subjected to temperatures up to 260 °C. The method assesses key parameters such as viscosity, softening point, and physical changes occurring during prolonged heating. It ensures consistent evaluation of adhesive performance under thermal stress, supporting manufacturers, users, and test laboratories.

Key Topics

• Thermal Stability Testing: The method evaluates how hot-melt adhesives respond to continuous elevated temperatures by monitoring changes in viscosity and softening point over time.
• Sample Preparation: Adhesive samples are melted in stainless steel or glass vessels, then maintained at the operating temperature recommended by the adhesive manufacturer.
• Measurement Intervals: Viscosity and softening point measurements are taken at regular time intervals, typically every 4 to 6 hours, until pre-defined criteria indicate the end of the test.
• Observation of Physical Changes: During testing, phenomena such as skin formation, fumes, phase separation, gelation, sedimentation, and color changes are carefully recorded.
• Testing Apparatus:
  • Stainless steel or glass container with a loose-fitting lid.
  • Stirred oil bath or ventilated oven maintaining temperature within ±2 °C.
  • Devices for viscosity measurement compliant with ISO 2555.
  • Softening point apparatus following ISO 4625 (“ring-and-ball” method).
  • Thermometer type T (ISO 1770) and a glass stirring rod.
• Test Reporting: Includes adhesive identification, conditions, measurement intervals, duration, test results, and any incidents affecting data integrity.

Applications

• Quality Control: Ensures hot-melt adhesives meet manufacturer specifications for stability when exposed to intended processing or service temperatures.
• Product Development: Allows formulation scientists to study adhesive behavior under thermal conditions and optimize compositions for enhanced thermal resistance.
• Performance Verification: Helps end-users and manufacturers verify adhesive suitability for specific applications requiring heat exposure, such as woodworking, packaging, automotive, and electronics assembly.
• Regulatory Compliance: Supports adherence to international standards and facilitates global trade by providing consistent test methods recognized worldwide.

Related Standards

• ISO 2555: Plastics – Determination of apparent viscosity of resins in liquid state by Brookfield Test method.
• ISO 4625: Binders for paints and varnishes – Determination of softening point by the ring-and-ball method.
• ISO 1770: Solid-stem general-purpose thermometers – required for accurate temperature measurement during testing.
• Complementary Standards on Adhesives: Standards related to testing mechanical, chemical, and environmental resistance of adhesive products, aiding comprehensive adhesive evaluation.

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By applying EN ISO 10363:1995, users can reliably measure the thermal stability of hot-melt adhesives to optimize product performance, ensure safety during application, and maintain quality standards in adhesive manufacturing and usage.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-1998
7DOLOQDOHSLODWHUPROHSLOD'RORþDQMHWRSORWQHREVWRMQRVWL,62
Hot-melt adhesives - Determination of thermal stability (ISO 10363:1992)
Schmelzklebstoffe - Bestimmung der thermischen Beständigkeit (ISO 10363:1992)
Adhésifs thermofusibles - Détermination de la stabilité thermique (ISO 10363:1992)
Ta slovenski standard je istoveten z: EN ISO 10363:1995
ICS:
83.180 Lepila Adhesives
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

IS0
INTERNATIONAL
STANDARD
First edition
1992-l Z-01
- Determination of
Hot-melt adhesives
thermal stability
- D&ermination de la stabilit6 thermique
Adh&ifs thermofusibles
Reference number
IS0 10363:1992(E)
IS0 10363:1992(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
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. IS0
collaborates closely with the International Electrotechnical Commission
(I EC) 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 IS0 10363 was prepared by Technical Committee
ISODC 61, Plastics, Sub-Committee SC 11, Products.
Annex A of this International Standard is for information only.
0 IS0 1992
All rights reserved. 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 per-
mission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
ii
IS0 10363:1992(E)
INTERNATIONAL STANDARD
Hot-melt adhesives - Determination of thermal
stability
4 Apparatus
1 Scope
tor
This International Standard specifies a method
4.1 Stainless-steel or glass vessel, external diam-
hot-
determining the thermal stability of non-reactive
eter 65 mm, height 95 mm, equipped with a loose-
melt adhesives at temperatures up to 260 “C.
fitting lid.
4.2 Oil bath, stirred and capable of being main-
tained at the operating temperature recommended by
2 Normative references
the manufacturer of the hot-melt adhesive. Alterna-
tively, a ventilated oven may be used instead of the
The following standards contain provisions which,
oil bath. The oven or bath shall be capable of heating
through reference in this text, constitute provisions
the sample to within + 2 “C of the required tempera-
of this International Standard. At the time of publi-
ture.
cation, the editions indicated were valid. All standards
are subject to revision, and parties to agreements
4.3 Glass stirring rod.
based on this International Standard are encouraged
to investigate the possibility of applying the most re-
cent editions of the standards indicated below.
4.4 Apparatus for measuring the softening point
Members of IEC and IS0 maintain registers of cur-
by the ” ring-and-ball” method as specified in
rently valid International Standards.
IS0 4625.
IS0 1770:1981, Solid-stem general purpose ther-
mometers. 4.5 Apparatus for measuring viscosity, in accord-
ance with IS0 2555.
IS0 2555: 1989, Plastics - Resins in the liquid state
or as emulsions or dispersions - Determination of
4.6 Thermometer, complying with type T of
apparent viscosity by the Brookfield Test method.
IS0 1770.
IS0 4625:1980, Binders for paints and varnishes -
Determination of softening point - Ring-and-ball
...