EN ISO 7458:2004
(Main)Glass containers - Internal pressure resistance - Test methods (ISO/FDIS 7458:2004)
Glass containers - Internal pressure resistance - Test methods (ISO/FDIS 7458:2004)
ISO 7458:2004 specifies two test methods for the determination of the internal pressure resistance of glass containers, Method A by application of uniform internal pressure for a predetermined period and Method B by application of internal pressure increasing at a predetermined constant rate.
Behältnisse aus Glas - Innendruckfestigkeit - Prüfverfahren (ISO 7458:2004)
Diese Europäische Norm legt zwei Prüfverfahren zur Bestimmung der Innendruckfestigkeit von Behältnissen aus Glas fest, Verfahren A, bei dem für eine vorher bestimmte Zeitdauer ein gleichbleibender Innendruck ausgeübt wird, und Verfahren B, bei dem mit vorher bestimmter konstanter Anstiegsrate der Innendruck gesteigert wird.
Récipients en verre - Résistance à la pression interne - Méthodes d'essai (ISO 7458:2004)
L'ISO 7458:2004 spécifie deux méthodes d'essai permettant de déterminer la résistance à la pression interne des récipients en verre: la méthode A avec application d'une pression interne uniforme pendant une durée prédéterminée et la méthode B avec application d'une pression interne augmentant à une vitesse constante prédéterminée.
Steklena embalaža – Odpornost proti notranjemu tlaku – Preskusne metode (ISO 7458:2004)
General Information
- Status
- Published
- Publication Date
- 29-Feb-2004
- 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
Overview
EN ISO 7458:2004 - Glass containers - Internal pressure resistance - Test methods - defines standardized laboratory tests to determine how glass bottles, jars and similar containers resist internal pressure. Prepared by CEN in alignment with ISO/TC 63, the standard specifies two complementary test methods (Method A and Method B), sampling rules, reporting requirements and safety guidance. The test medium is tap water.
Key topics and technical requirements
- Scope and sampling
- Applies to glass containers (bottles, pots, jars). Tests must use a predetermined sample size and untested containers (no prior mechanical/thermal tests).
- Test medium
- Tap water is specified as the pressurizing medium.
- General apparatus requirements
- Container held suspended by the finish.
- Resilient seal between sealing surface and pressure head to retain fluid.
- Accurate means for applying and measuring internal pressure; reproducibility requirements provided.
- Method A - Uniform pressure
- Apply a target internal pressure and hold it constant.
- Initial pressurization rate: (10 ± 2) bar·s⁻¹ (≈ 1.0 ± 0.2 MPa·s⁻¹).
- Pass test: hold for (60 ± 2) s (or corrected equivalent).
- Progressive test: after the pass stage, increase pressure in 1 or 2 bar increments until 50% and/or 100% of containers fail.
- Method B - Constant ramp (rate-controlled)
- Increase internal pressure at (5.8 ± 1) bar·s⁻¹ (≈ 0.58 ± 0.1 MPa·s⁻¹) until failure or a set limit.
- Apparatus must indicate failure pressure and relate ramp results to the 60 s (Method A) equivalent (example relationship provided).
- Test options: pass test to a predetermined level or test to destruction.
- Test report requirements
- Must reference EN ISO 7458:2004 and record sample size, mould sources, test type, detailed results (first-failure pressure, pressures to break specific percentages, mean breaking pressure, standard deviation), date, location and responsible signature.
- Safety
- Tests can be hazardous; appropriate safety measures and equipment are required.
Applications and users
- Quality control and R&D in glass container manufacturing
- Packaging engineers validating container performance for carbonated beverages, pressurized contents, or thermal processes
- Independent testing laboratories and conformity assessment bodies
- Regulatory or procurement teams specifying minimum internal pressure resistance for bottles, jars, and wide-mouth containers
Related standards
Part of a glass-container test methods series (as cited by the standard):
- EN ISO 7459 - Thermal shock resistance
- EN ISO 8113 - Resistance to vertical load
- EN ISO 8106 / EN 29008 / EN 29009 - Other dimensional and capacity test methods
Keywords: EN ISO 7458:2004, internal pressure resistance, glass containers, test methods, Method A, Method B, pass test, test to destruction, packaging quality control.
Frequently Asked Questions
EN ISO 7458:2004 is a standard published by the European Committee for Standardization (CEN). Its full title is "Glass containers - Internal pressure resistance - Test methods (ISO/FDIS 7458:2004)". This standard covers: ISO 7458:2004 specifies two test methods for the determination of the internal pressure resistance of glass containers, Method A by application of uniform internal pressure for a predetermined period and Method B by application of internal pressure increasing at a predetermined constant rate.
ISO 7458:2004 specifies two test methods for the determination of the internal pressure resistance of glass containers, Method A by application of uniform internal pressure for a predetermined period and Method B by application of internal pressure increasing at a predetermined constant rate.
EN ISO 7458:2004 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 7458:2004 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 7458:2004 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 proti notranjemu tlaku – Preskusne metode (ISO
7458:2004)
Glass containers - Internal pressure resistance - Test methods (ISO 7458:2004)
Behältnisse aus Glas - Innendruckfestigkeit - Prüfverfahren (ISO 7458:2004)
Récipients en verre - Résistance a la pression interne - Méthodes d'essai (ISO
7458:2004)
Ta slovenski standard je istoveten z: EN ISO 7458:2004
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 7458
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2004
ICS 55.100
English version
Glass containers - Internal pressure resistance - Test methods
(ISO/FDIS 7458:2004)
Récipients en verre - Résistance à la pression interne - Behältnisse aus Glas - Innendruckfestigkeit - Prüfverfahren
Méthodes d'essai (ISO 7458:2004) (ISO 7458:2004)
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 7458:2004: E
worldwide for CEN national Members.
Contents page
Foreword.3
1 Scope .4
2 Sampling.4
3 Test methods.4
3.1 Test medium.4
3.2 Method A.4
3.2.1 General.4
3.2.2 Apparatus .4
3.2.3 Procedure .4
3.2.4 Test report .5
3.3 Method B.5
3.3.1 General.5
3.3.2 Apparatus .5
3.3.3 Procedure .6
3.3.4 Test report .6
4 Safety requirements .7
Foreword
This document (EN ISO 7458:2004) 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.
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 7459:2004)
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 natio
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