arpadveress 
The ignition properties of the hazardous explosive atmosphere shall be determined. Relevant data are, e.g.:
a) minimum ignition energy (see EN ISO/IEC 80079-20-2);
b) minimum ignition temperature of an explosive dust atmosphere (see EN ISO/IEC 80079-20-2);
c) auto-ignition temperature of an explosive gas atmosphere (see EN ISO/IEC 80079-20-1)
See more EN 1127-1:2019
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