Electrical apparatus for use in the presence of combustible dust - Part 2: Test methods - Section 2: Method for determinig the electrical resistivity of dust in layers
|Publication Date:||1 October 1995|
|ICS Code (Electrical apparatus for explosive atmospheres):||29.260.20|
Specifies two methods that, however, are not suitable for use with substances having explosive properties; Method A determine the minimum temperature of a prescribed hot surface which will result in the decomposition and/or ignition of a layer of dust of a specified thickness deposited on it. Method B determines the minimum temperature of a prescribed hot surface which will result in the ignition of a cloud of a given sample of dust or other particulate solid.