Pressurized enclosures with an internal release of flammable substances

1 Pressurized enclosures with an internal release of flammable substances 

The solution for a release of combustible substances has been found in the dilution area (Fig. 7.1). In this part of the pressurized room surrounding the 

Air or inert gases can be used both as protective gas and for dilution of any release of combustible substances. 

The containment system (this includes the piping, analyser cell and all related parts such as valves, flanges etc.), as the constructional part of an analyser which is permanently connected to the process to be monitored and which conducts the gas to be analysed, sometimes in combination with a carrier gas, shall be assessed with respect to its leakage rate (Table 7.1). If there is no oxygen present in this gas, air may be used for dilution. The air flow is 

Flammable Operational substance to be mode analysed accompanied by oxygen 

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