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EN 14034-4:2004

(Main)

Determination of explosion characteristics of dust clouds - Part 4: Determination of the limiting oxygen concentration LOC of dust clouds

Determination of explosion characteristics of dust clouds - Part 4: Determination of the limiting oxygen concentration LOC of dust clouds

This document describes a test method for the determination of the limiting oxygen concentration of dust clouds in a closed vessel under defined initial conditions of pressure and temperature.
This method is not suitable for use with recognised explosives, like gunpowder and dynamite, substances which do not require oxygen for combustion, pyrophoric substances, or substances or mixtures of substances which may under some circumstances behave in a similar manner. Where any doubt exists about the existence of hazard due to explosive properties, expert advice should be sought.

Bestimmung der Explosionskenngrößen von Staub/Luft-Gemischen - Teil 4: Bestimmung der Sauerstoffgrenzkonzentration SGK von Staub/Luft-Gemischen

Dieses Dokument beschreibt ein Prüfverfahren für die Bestimmung der Sauerstoffgrenzkonzentration von Staubwolken in einem geschlossenen Behälter unter definierten Anfangsbedingungen von Druck und Temperatur.
Dieses Verfahren ist nicht geeignet für Sprengstoffe wie Schießpulver und Dynamit sowie Stoffe, die ohne Sauerstoff verbrennen, pyrophore Stoffe oder Stoffe bzw. Stoffgemische, die sich unter bestimmten Umständen ähnlich verhalten. Wenn Zweifel über eventuell vorhandene Gefährdungen durch die Explosionswirkung bestehen, sollten Fachleute zu Rate gezogen werden.

Détermination des caractéristiques d'explosion des nuages de poussières - Partie 4 : Détermination de la concentration limite en oxygène CLO des nuages de poussière

La présente norme décrit une méthode d'essai permettant de déterminer la concentration limite en oxygène des nuages de poussière dans un récipient fermé, dans des conditions initiales définies de pression et de température.
Cette méthode ne convient pas aux explosifs reconnus, tels que la poudre, la dynamite, les explosifs dont la combustion ne nécessite pas d'oxygène, les substances pyrophoriques ou les substances ou mélanges de substances susceptibles de se comporter de manière similaire dans certaines conditions. Il convient de demander l'avis d'un expert lorsqu'un doute subsiste en ce qui concerne l'existence d'un phénomène dangereux dû aux propriétés explosives.

Ugotavljanje eksplozijskih značilnosti oblakov prahu - 4. del: Ugotavljanje mejne koncentracije kisika LOC oblakov prahu

General Information

Status
Withdrawn
Publication Date
07-Sep-2004
Withdrawal Date
11-Jan-2011
ICS
13.230 - Explosion protection
Technical Committee
CEN/TC 305 - Potentially explosive atmospheres - Explosion prevention and protection
Drafting Committee
CEN/TC 305/WG 1 - Test methods for determining the flammability characteristics of substances (provisional title)
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
12-Jan-2011
Completion Date
12-Jan-2011
Directive
94/9/EC - Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the approximation of the laws of the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres
Mandate
M/BC/CEN/92/46 - Standardization mandate assigned to CEN/CENELEC concerning equipment and protective systems intended for use in potentially explosive atmospheres
Ref Project
SIST EN 14034-4:2005 - Determination of explosion characteristics of dust clouds - Part 4: Determination of the limiting oxygen concentration LOC of dust clouds

Relations

Merged Into
EN 14034-4:2004+A1:2011 - Determination of explosion characteristics of dust clouds - Part 4: Determination of the limiting oxygen concentration LOC of dust clouds
Effective Date
19-Jan-2023

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Determination of explosion characteristics of dust clouds - Part 4: Determination of the limiting oxygen concentration LOC of dust cloudsDétermination des caractéristiques d'explosion des nuages de poussieres - Partie 4 : Détermination de la concentration limite en oxygene CLO des nuages de poussiereBestimmung der Explosionskenngrößen von Staub/Luft-Gemischen - Teil 4: Bestimmung der Sauerstoffgrenzkonzentration SGK von Staub/Luft-Gemischen13.230Varstvo pred eksplozijoExplosion protectionICS:SIST EN 14034-4:2005enTa slovenski standard je istoveten z:EN 14034-4:200401-marec-2005SIST EN 14034-4:2005SLOVENSKI
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EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14034-4September 2004ICS 13.230 English versionDetermination of explosion characteristics of dust clouds - Part4: Determination of the limiting oxygen concentration LOC ofdust cloudsDétermination des caractéristiques d'explosion des nuagesde poussières - Partie 4 : Détermination de la concentrationlimite en oxygène CLO des nuages de poussièresBestimmung der Explosionskenngrößen von Staub/Luft-Gemischen - Teil 4: Bestimmung derSauerstoffgrenzkonzentration SGK von Staub/Luft-GemischenThis European Standard was approved by CEN on 9 July 2004.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 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14034-4:2004: E



EN 14034-4:2004 (E) 2 Contents page Foreword.3 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Test apparatus.6 4.1 General.6 4.2 Explosion vessel.8 4.3 Dust dispersion system (dust container, fast acting valve, connecting tube, dust disperser).8 4.4 Ignition source.11 4.5 Control unit.11 4.6 Pressure measuring system.11 4.7 Oxygen measuring system.11 4.8 System to create the inert gas/air-mixture.11 5 Dust sample.11 6 Test procedure.12 7 C
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