Glass containers - Thermal shock resistance and thermal shock endurance - Test methods (ISO 7459:2004)

ISO 7459:2004 specifies test methods for determining the thermal shock resistance and thermal shock endurance of glass containers.
It does not apply to the determination of properties of laboratory glassware.

Behältnisse aus Glas - Beständigkeit gegen Abschrecken und Temperaturwechselbeständigkeit - Prüfverfahren (ISO 7459:2004)

Diese Europäische Norm legt die Prüfverfahren zur Bestimmung der Beständigkeit gegen Abschrecken und zur Bestimmung der Temperaturwechselbeständigkeit von Behältnissen aus Glas fest.
Diese Europäische Norm ist nicht anwendbar für die Bestimmung der Eigenschaften von Laborglasgeräten (siehe ISO 718).

Récipients en verre - Résistance au choc thermique et endurance au choc thermique - Méthodes d'essai (ISO 7459:2004)

L'ISO 7459:2004 spécifie des méthodes d'essai permettant de déterminer la résistance au choc thermique et l'endurance au choc thermique des récipients en verre.
Elle n'est pas applicable à la détermination des propriétés de la verrerie de laboratoire.

Steklena embalaža – Odpornost in vzdržljivost pri hitrih temperaturnih spremembah – Preskusne metode (ISO 7459:2004)

General Information

Status
Published
Publication Date
29-Feb-2004
ICS
55.100 - Bottles. Pots. Jars
Technical Committee
CEN/TC 261 - Packaging
Drafting Committee
CEN/TC 261/SC 5/WG 21 - Glass packaging
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
23-Oct-2009
Completion Date
23-Oct-2009
Directive
80/232/EEC - Ranges of nominal quantities and nominal capacities permitted for certain pre-packaged products
87/356/EEC - Ranges of nominal quantities and nominal capacities permitted for certain pre-packged products (Dir. 80/232/EEC amendment)
Ref Project
SIST EN ISO 7459:2004 - Glass containers - Thermal shock resistance and thermal shock endurance - Test methods (ISO 7459:2004)

Overview

EN ISO 7459:2004 (ISO 7459:2004) specifies standardized test methods to determine the thermal shock resistance and thermal shock endurance of glass containers (bottles, jars). Published by CEN in collaboration with ISO TC 63, the standard defines how to expose containers to sudden temperature changes and record failures so manufacturers and quality labs can quantify performance and compare products consistently. It does not apply to laboratory glassware (see ISO 718).

Key topics and technical requirements

  • Terms and definitions: container, thermal shock, thermal shock resistance (°C the container withstands without breaking), thermal shock endurance (temperature difference at which ~50% fail).
  • Apparatus:
    • Cold water bath and hot water bath, each sized to at least 8 dm³ of water per kilogram of glass tested, with circulation and thermostatic control to ±1 °C.
    • A basket made from inert material to hold containers upright and prevent floating; may be used with automatic transfer equipment.
  • Procedure essentials:
    • Heat immersion: containers are filled and immersed in the hot bath for at least 5 minutes.
    • Transfer: basket moved from hot to cold bath within a maximum of 16 s.
    • Cold immersion: containers kept in cold bath for 30 s, then inspected for cracks or breakage.
    • Baths must have sufficient depth to fully immerse containers plus at least 50 mm.
  • Test types:
    • Pass test: single thermal shock at agreed temperature difference (t1 − t2).
    • Progressive test: repeat tests with increasing temperature differences (commonly in 5 °C increments) until a specified percentage of breakages occurs.
    • Total progressive test: continue until all containers fail; if hot bath reaches 95 °C, lower cold bath temperature to continue.
    • High-level test: single test at a high ΔT to cause an agreed failure percentage.
  • Thermal shock endurance: determined from a graph of cumulative failure percentage vs. temperature difference; the interpolated ΔT at 50% failure is reported.
  • Safety and reporting: laboratory safety precautions are required. Test reports must reference the standard and include sample size, bath temperatures, failure counts per ΔT, date, location, and responsible signature.

Applications and users

  • Used by glass container manufacturers, quality control laboratories, packaging engineers, and product development teams to:
    • Validate container durability against rapid temperature changes (filling, cooling, processing).
    • Compare formulations, annealing processes, or design variants.
    • Set product specifications and supplier acceptance criteria.
  • Relevant for industries packaging food, beverages, chemicals, and any application where containers see rapid thermal transitions.

Related standards

  • EN ISO 7458 - Internal pressure resistance (glass containers)
  • EN ISO 8113 - Resistance to vertical load
  • ISO 718 - Laboratory glassware - Thermal shock (not covered by EN ISO 7459)
  • Other glass container test-method standards referenced in the EN ISO series

Keywords: EN ISO 7459:2004, ISO 7459:2004, glass containers, thermal shock resistance, thermal shock endurance, test methods, hot water bath, cold water bath, packaging testing.

Frequently Asked Questions

EN ISO 7459:2004 is a standard published by the European Committee for Standardization (CEN). Its full title is "Glass containers - Thermal shock resistance and thermal shock endurance - Test methods (ISO 7459:2004)". This standard covers: ISO 7459:2004 specifies test methods for determining the thermal shock resistance and thermal shock endurance of glass containers. It does not apply to the determination of properties of laboratory glassware.

ISO 7459:2004 specifies test methods for determining the thermal shock resistance and thermal shock endurance of glass containers. It does not apply to the determination of properties of laboratory glassware.

EN ISO 7459:2004 is classified under the following ICS (International Classification for Standards) categories: 55.100 - Bottles. Pots. Jars. The ICS classification helps identify the subject area and facilitates finding related standards.

EN ISO 7459:2004 is associated with the following European legislation: EU Directives/Regulations: 80/232/EEC, 87/356/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

You can purchase EN ISO 7459:2004 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 CEN standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-september-2004
Steklena embalaža – Odpornost in vzdržljivost pri hitrih temperaturnih
spremembah – Preskusne metode (ISO 7459:2004)
Glass containers - Thermal shock resistance and thermal shock endurance - Test
methods (ISO 7459:2004)
Behältnisse aus Glas - Beständigkeit gegen Abschrecken und
Temperaturwechselbeständigkeit - Prüfverfahren (ISO 7459:2004)
Récipients en verre - Résistance au choc thermique et endurance au choc thermique -
Méthodes d'essai (ISO 7459:2004)
Ta slovenski standard je istoveten z: EN ISO 7459:2004
ICS:
55.100 Steklenice. Lonci. Kozarci Bottles. Pots. Jars
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 7459
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2004
ICS 55.100
English version
Glass containers - Thermal shock resistance and thermal shock
endurance - Test methods (ISO/FDIS 7459:2004)
Récipients en verre - Résistance au choc thermique et Behältnisse aus Glas - Beständigkeit gegen Abschrecken
endurance au choc thermique - Méthodes d'essai (ISO und Temperaturwechselbeständigkeit - Prüfverfahren (ISO
7459:2004) 7459:2004)
This European Standard was approved by CEN on 3 November 2003.
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 7459:2004: E
worldwide for CEN national Members.

Contents page
Foreword.3
1 Scope .4
2 Terms and definitions.4
3 Apparatus .4
3.1 Cold water bath .4
3.2 Hot water bath .4
3.3 Basket .4
4 Sampling.4
5 Procedure .5
6 Thermal shock resistance.5
6.1 Pass test .5
6.2 Progressive test to a specified percentage of breakages .5
6.3 Total progressive test.5
6.4 High-Ievel test.5
7 Thermal shock endurance .5
8 Safety requirements .6
9 Test report .6
Bibliography .8
Foreword
This document (EN ISO 7459:2004) has been prepared by Technical Committee CEN /TC 261, "Packaging", the
secretariat of which is held by AFNOR, in collaboration with Technical Committee ISO/TC 63 "Glass containers".
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 September 2004, and conflicting national standards shall be withdrawn at the
latest by September 2004.
This document includes a Bibliography.
Efficient packaging is of great importance for the distribution and the protection of goods and the environment.
Insufficient or inappropriate packaging can lead to damage or wastage of the contents of the pack.
This standard is part of a series of standards for "Glass containers - Test methods":
 EN ISO 7458, Glass containers — Internal pressure resistance — Test methods (ISO 7458:2004)
 EN ISO 7459, Glass containers — Thermal shock resistance and thermal shock endurance — Test methods
(ISO:2004)
 prEN ISO 8106, Glass containers — Determination of capacity by gravimetric method — Test method
(ISO/FDIS 8106:2003)
 EN ISO 8113, Glass containers — Resistance to vertical load — Test method (ISO 8113:2004)
 EN 29008, Glass bottles — Verticality — Test method (ISO 9008:1991)
 EN 29009, Glass containers — Height and non-parallelism of finish with reference to container base — Test
methods (ISO 9009:1991)
 EN 29885, Wide-mouth glass containers — Deviation from flatness of top sealing surface — Test methods
(ISO 9885:1991)
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, Finl
...

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