Quality assurance for the tests to determine explosive parameters of the combustible dust-air mixtures

For any type of combustible dust, several important explosive parameters must be taken into account when designing and using protection systems: namely the ease with which dust clouds ignite their burning rate, maximum explosion pressure, pressure rise speed. explosion. The accuracy results obtained necessary for design use systems depends on a number factors but also application test method (s) by personnel involved. Test quality assurance is requirement EN ISO / IEC 17025 accreditation testing laboratories. standard requires laboratories to have procedure in place monitor validity results, involves participation interlaboratory comparisons. This paper presents some specific issues highlighted during successful INSEMEX-GLI rounds comparisons tests determine dust-air mixtures.