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What is Closed Equipment?

What is Closed Equipment?

The term derives from European Standard EN12921, which defines cleaning equipment suitable for use with non-flammable solvents. Within the six equipment types identified within the standard, Types III, IV and V are termed 'closed' and relate to machines where cleaning, rinsing and drying is undertaken in a single, sealed chamber that cannot be accessed until the process cycle has been completed. Closed machines incorporate integral carbon abatement and generally operate without the need for an external vent to atmosphere (See Table below) 

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