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For safe use of combustible
substances as well as for the design of explosion-protected
equipment and protective systems the knowledge of properties, which are
described by
safety characteristics, is required. These characteristics are no
physical constants, but conventional quantities. The reproducibility
and the comparability of these values are closely linked with
special determined testing procedures.
Safety characteristics are determined
by IBExU on the basis of applicable norms and directives, for example: |
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Combustible dusts
- Dust Explosibility, including the:
- Maximum explosion pressure
- Maximum rate of pressure rise
- KSt-value / Dust Explosion Class
- Lower explosion limit
- Limiting oxygen concentration
- Minimum ignition energy
- Ignition temperature
- Smoulder temperature
- Autoignition temperature
- Burning behaviour / flammability
- Electrostatic charging and electrical resistance
- Exothermic decomposition
- Deflagration
- Impact sensitivity
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Combustible gases and liquids
- Flash point
- Lower and upper explosion limits
- Explosion points
- Limiting oxygen concentration
- Maximum explosion pressure
- Maximum rate of pressure rise, KG-value
- Ignition temperature
- Maximum Experimental Safe Gap
- Exothermic decomposition
Hybrid mixtures as well as mists/aerosols
of combustible liquids
- Explosibility
- Maximum explosion pressure
- Maximum rate of pressure rise
- Lower explosion limit
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The safety characteristics, especially of combustible gases and
liquids, can also be determined by IBExU under
“non-atmospheric conditions” (increased mixture pressure and/or
mixture temperature, increased content of oxygen, special oxidants,
silicium organic compounds). For these fields, IBExU developed
special procedures. IBExU also carries out safety tests
according to special standards, e. g. regarding the classification
according to “Hazardous Materials Regulation” or “Hazardous
Materials Transportation Act”.
Contacts |
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