GB/T 16425-2018 Determination for minimum explosive concentration of dust clouds
1 Scope
This standard specifies the test equipment, test procedures, other alternative test methods, safety measures and test report for the determination for the minimum explosible concentration of dust-air mixtures.
This standard is applicable to combustible dust that relies on oxygen in the air to maintain its oxidation reaction.
This standard is not applicable to explosives or substances capable of combusting or exploding without relying on oxygen in the air.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 15604 Terminology for dust explosion prevention
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 15604 and the following apply.
3.1
dust
fine solid particles
3.2
combustible dust
dust that can explode when undergoing violent oxidation reactions with combustion-supporting gases
3.3
minimum explosible concentration
Cmin
lowest concentration of dust clouds that can sustain self-sustaining combustion when exposed to a given ignition source
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Test equipment
5 Test procedures
6 Other alternative test methods
7 Safety measures
8 Test report
