I.S. EN ISO/IEC 80079-20-2:2016

National Foreword
European foreword
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Dust sample requirements
5 Combustible dusts and combustible flyings determination
6 Procedure for characterisation of combustible dust or
  combustible flying
7 Test methods for determination of whether a material is a
  combustible dust or a combustible flying
8 Test methods for combustible dust determinations
9 Test report
Annex A (normative) - Measurement of temperature distribution
        on the surface of the hot plate
Annex B (informative) - Godbert-Greenwald oven (GG)
Annex C (informative) - Examples of spark-generating systems
Annex D (normative) - Vertical tube (modified Hartmann tube)
        apparatus
Annex E (informative) - 20-litre sphere
Annex F (informative) - BAM oven
Annex G (informative) - Data for dust explosion characteristics
Annex H (informative) - 1 m[3] vessel
Bibliography
Annex ZA (informative) - Relationship between this European
         Standard and the essential requirements of Directive
         2014/34/EU aimed to be covered
Annex ZB (informative) - Significant changes with respect to
         EN 13821:2002, IEC 61241-2-1:1994, EN 61241-2-2:1993
         and IEC 61241-2-3:1994

Explains 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.