Explosive atmospheres - Part 20-2: Material characteristics - Combustible dusts test methods (ISO/IEC 80079-20-2:2016)

ISO/IEC 80079-20-2:2016 is published as a dual logo standard and describes the test methods for the identification of combustible dust and combustible dust layers in order to permit classification
of areas where such materials exist for the purpose of the proper selection and installation of electrical and mechanical equipment for use in the presence of combustible dust. The standard    
atmospheric conditions for determination of characteristics of combustible dusts are:
- temperature -20 °C to 60 °C,
- pressure 80 kPa (0,8 bar) to 110 kPa (1,1 bar) and
- air with normal oxygen content, typically 21 % v/v. The test methods defined do not apply to:
- recognized explosives, propellants (e.g. gunpowder, dynamite), or substances or mixtures of substances which may, under some circumstances, behave in a similar manner or
- dusts of explosives and propellants that do not require atmospheric oxygen for combustion, or to pyrophoric substances. This first edition cancels and replaces the first edition of IEC 61241-2-1 published in 1994, the first edition of IEC 61241-2-2 published in 1993 and the first edition of IEC 61241-2-3 published in 1994, combining the requirements into a single document, and is considered to constitute a technical revision. Significant changes with respect to IEC 61241-2-1:1994, IEC 61241-2-2:1993 and IEC 61241-2-3:1994 can be found in the foreword of the document.      
Keywords: combustible dust

Explosionsfähige Atmosphären - Teil 20-2: Werkstoffeigenschaften - Prüfverfahren für brennbare Stäube (ISO/IEC 80079-20-2:2016)

Dieser Teil von ISO/IEC 80079 beschreibt die Prüfverfahren für die Identifizierung von brennbarem Staub und Ablagerungen brennbarer Stäube, um die Klassifizierung von Bereichen, in denen solche Stoffe vorkommen, zum Zweck der Auswahl und Montage von elektrischen und mechanischen Ausrüstungen, die für die Verwendung in Gegenwart von brennbarem Staub geeignet sind, zu ermöglichen.
Die atmosphärischen Normzustände zur Bestimmung der Eigenschaften von brennbaren Stäuben sind
—   Temperatur −20 °C bis +60 °C,
—   Druck 80 kPa (0,8 bar) bis 110 kPa (1,1 bar) und
—   Luft mit normalem Sauerstoffgehalt, typischerweise 21 % v/v.
Die definierten Prüfverfahren sind nicht anwendbar auf
—   anerkannte Sprengstoffe, Treibstoffe (z. B. Schießpulver, Dynamit) oder auf Stoffe und Stoffgemische, die sich unter Umständen ähnlich verhalten können oder
—   Stäube von Sprengstoffen und Treibstoffen, die keinen atmosphärischen Sauerstoff zur Verbrennung benötigen oder auf pyrophore Stoffe.

Atmosphères explosives - Partie 20-2: Caractéristiques des produits - Méthodes d’essai des poussières combustibles (ISO/IEC 80079-20-2:2016)

Eksplozivne atmosfere - 20-2. del: Lastnosti materiala - Metode preskušanja gorljivega prahu (ISO/IEC 80079-20-2:2016)

Ta standard opisuje preskusne metode za ugotavljanje, ali so za material značilne lastnosti, ki se upoštevajo kot gorljiv prah, in za ugotavljanje lastnosti gorljivih prahov. Ta preskusna metoda se uporablja za določanje in razvrščanje območij, v katerih so prisotne eksplozivne prašne atmosfere in gorljive plasti prahu, da se omogoči ustrezna ocena potencialnih virov vžiga opreme, ki jih je treba uporabljati pri konstrukciji in uporabi opreme, ki se uporablja v prisotnosti gorljivega prahu. Opredeljene preskusne metode se ne uporabljajo za: – znane eksplozive, smodnik, dinamit ali snovi ali mešanice snovi, ki lahko v nekaterih okoliščinah delujejo podobno; ali – prah eksplozivov, ki za gorenje ne potrebuje atmosferskega kisika, ali piroforne snovi.

General Information

Status
Published
Publication Date
29-Mar-2016
Withdrawal Date
29-Sep-2016
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
30-Mar-2016
Due Date
26-Feb-2017
Completion Date
30-Mar-2016

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO/IEC 80079-20-2:2016
01-julij-2016
1DGRPHãþD
SIST EN 13821:2003
Eksplozivne atmosfere - 20-2. del: Lastnosti materiala - Metode preskušanja
gorljivega prahu (ISO/IEC 80079-20-2:2016)
Explosive atmospheres - Part 20-2: Material characteristics - Combustible dusts test
methods (ISO/IEC 80079-20-2:2016)
Explosionsfähige Atmosphären - Teil 20-2: Werkstoffeigenschaften - Prüfverfahren für
brennbare Stäube (ISO/IEC 80079-20-2:2016)
Atmosphères explosives - Partie 20-2: Caractéristiques des produits - Méthodes d'essai
des poussières combustibles (ISO/IEC 80079-20-2:2016)
Ta slovenski standard je istoveten z: EN ISO/IEC 80079-20-2:2016
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
13.230 Varstvo pred eksplozijo Explosion protection
SIST EN ISO/IEC 80079-20-2:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO/IEC 80079-20-2:2016

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SIST EN ISO/IEC 80079-20-2:2016


EN ISO/IEC 80079-20-2
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2016
EUROPÄISCHE NORM
ICS 29.260.20 Supersedes EN 61241-2-2:1995
English Version

Explosive atmospheres - Part 20-2: Material
characteristics - Combustible dusts test methods (ISO/IEC
80079-20-2:2016)
Atmosphères explosives - Partie 20-2: Caractéristiques Explosionsfähige Atmosphären - Teil 20-2:
des produits - Méthodes d'essai des poussières Werkstoffeigenschaften - Prüfverfahren für brennbare
combustibles (ISO/IEC 80079-20-2:2016) Stäube (ISO/IEC 80079-20-2:2016)
This European Standard was approved by CEN on 18 February 2016.

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 CEN-CENELEC 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
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO/IEC 80079-20-2:2016 E
worldwide for CEN national Members.

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SIST EN ISO/IEC 80079-20-2:2016
EN ISO/IEC 80079-20-2:2016 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2014/34/EU . 4
Annex ZB (informative) Significant changes with respect to IEC 61241-2-1:1994, EN 61241-
2-2:1993 and IEC 61241-2-3:1994 . 5

2

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SIST EN ISO/IEC 80079-20-2:2016
EN ISO/IEC 80079-20-2:2016 (E)
European foreword
This document (EN ISO/IEC 80079-20-2:2016) has been prepared by Technical Committee ISO/TMBG
"Technical Management Board - groups" in collaboration with Technical Committee CEN/TC 305
“Potentially explosive atmospheres - Explosion prevention and protection” the secretariat of which is
held by DIN.
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 2016, and conflicting national standards
shall be withdrawn at the latest by September 2016.
The significant changes with respect to EN 61241-2:1995 are included in Annex ZB “Significant changes
with respect to IEC 61241-2-1:1994, IEC 61241-2-2:1993 and IEC 61241-2-3:1994".
This document supersedes EN 61241-2-2:1995.
This document has been prepared under a mandate g
...

SLOVENSKI STANDARD
oSIST prEN ISO 80079-20-2:2014
01-oktober-2014
Eksplozivne atmosfere - 20-2. del: Lastnosti materiala - Preskusne metode
gorljivega prahu (ISO/DIS 80079-20-2:2014)
Explosive atmospheres - Part 20-2: Material characteristics - Combustible dusts test
methods (ISO/DIS 80079-20-2:2014)
Ta slovenski standard je istoveten z: prEN ISO 80079-20-2
ICS:
13.230 Varstvo pred eksplozijo Explosion protection
oSIST prEN ISO 80079-20-2:2014 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 80079-20-2:2014

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oSIST prEN ISO 80079-20-2:2014
DRAFT INTERNATIONAL STANDARD IEC/DIS 80079-20-2
Secretariat: TMB
Voting begins on Voting terminates on
2014-07-18 2014-10-24
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION  МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ  ORGANISATION INTERNATIONALE DE NORMALISATION
INTERNATIONAL ELECTROTECHNICAL COMMISSION   МЕЖДУНАРОДНАЯ ЭЛЕКТРОТЕХНИЧЕСКАЯ КОММИСИЯ   COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
Explosive atmospheres —
Part 20-2:
Material characteristics -- Combustible dusts test methods
Atmosphères explosives —
Partie 20-2
ICS 29.260.20
This draft is submitted to a parallel enquiry in ISO and a CDV vote in the IEC.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME
STANDARDS TO WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
©  International Electrotechnical Commission, 2014

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oSIST prEN ISO 80079-20-2:2014
IEC/DIS 80079-20-2
©  International Electrotechnical Commission, 2014
ii

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oSIST prEN ISO 80079-20-2:2014
– 2 – 80079-20-2/Ed1/CDV © ISO/IEC:2014

1 CONTENTS
2 1 Scope . 7
3 2 Normative references . 7
4 3 Terms and definitions . 7
5 4 Dust sample requirements . 8
6 4.1 Receipt of sample for testing . 8
7 4.2 Characterisation of sample . 8
8 4.3 Preparation of sample . 9
9 4.4 Test conditions . 9
10 5 Combustible dusts and combustible flyings determination . 9
11 5.1 Test sequence . 9
12 5.2 Tests to determine whether material is a combustible dust or combustible
13 flying . 9
14 5.2.1 Visual inspection . 9
15 5.2.2 Determine particle distribution . 9
16 5.2.3 Igntion test in the Hartmann tube . 10
17 5.2.4 Ignition test in the 20 litre sphere . 10
18 6 Protocol for characterisation of combustible dust or combustible flying . 10
19 6.1 General . 10
20 7 Test methods for determination of whether a material is a combustible dust or
21 combustible flyings . 14
22 7.1 General . 14
23 7.2 Modified Hartmann tube .
...

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