Maximum experimental safe gap of binary and ternary mixtures

摘要

Maximun Experimental Safe Gaps (MESG) are the basis for construction and use of flame proof equipment. MESG of many pure substance are experimentally determined. On the basis of about 150 experimentally determined MESGs of binary and ternary mixtures a estimation methode for MESG of mixtures is developped. This estimation methode is based on the oxygen amount which is needed by the single components of the mixtures to undergo stoechimetric oxidation reaction. The MESGs estimated by this methods correspond to the measured ones within the uncertainty of measurement given in IEC 79-1A.