Minimum Ignition Temperature - MIT Dust Cloud

A risk factor where dusts are exposed to hot environments, such as in dryers, is the
ignition temperature of a suspended dust cloud.  The minimum temperature that will
ignite a dust cloud under specified test conditions is determined by applying ASTM
E1491 Standard Test Method for Minimum Ignition Temperature of Dust Clouds.
Small amounts of dust are pneumatically conveyed into the top of a tube furnace
set to a specified temperature. The minimum ignition temperature is the lowest
furnace temperature that results in ignition of the dust.  This temperature is referred
to as the MIT Dust Cloud.

Ignition temperature testing is conducted on fine dry dusts. Test standards
recommend that the test be conducted on fine dusts, i.e., dust passing through
a No. 200 sieve screen (or a No. 230 sieve screen when testing in accordance
to EN requirements). If the moisture content is more than 5% then the sample
is dried.

Sample size: 100 g