EN 17077:2018

European foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle of the test method
5 Test equipment
6 Characterization of dust sample
7 Test procedure
8 Safety precautions/instructions
9 Test report
Annex A (informative) - Tests at elevated initial
        temperatures
Annex B (informative) - Alternative test apparatus
Annex C (informative) - Example materials demonstrating
        behaviour typical of each of the burning classes
Annex ZA (informative) - Relationship between this
         European Standard and the essential requirements
         of Directive 2014/34/EU aimed to be covered
Bibliography

This European Standard describes a test method for the determination of the burning behaviour of dust layers under defined initial conditions of air flow, temperature and ignition.A test result of burning class 1 with the described method does not mean that a dust cannot be ignited when dispersed in a cloud.This method is not suitable for use with recognized explosives, like gunpowder and dynamite, explosives which do not require atmospheric oxygen for combustion, pyrophoric substances, or substances or mixtures of substances which may under some circumstances behave in a similar manner. Expert advice should be called in, when any doubt exists about the existence of hazard due to explosive properties.