EVS-EN 1093-9:1999

This European Standard specifies a room method for the measurement of the pollutant concentration parameter of a specified airborne hazardous substance from machines, located in a test room and operating the machines under defined conditions.  This method can only be used for machines with a local exhaust ventilation with an air flow rate ? 500 m3/h and machines without recirculated air.  Measurement of the pollutant concentration parameter of a machine can serve for the:   a) evaluation of the performance of a machine;   b) evaluation of the improvement of the machine;   c) comparison of machines within groups of machines with the same intended use (groups are defined by the function and materials processed),   d) ranking of machines from the same group according to their pollutant concentration parameters;   e) determination of the state of the art of machines with respect to their pollutant concentration parameter.