scope:

This part of ISO 29042 specifies a room method for the measurement of the pollutant concentration parameter of a given airborne hazardous substance from machines, located in a test room and operating the machines under defined conditions. This method is applicable only to machines with a local exhaust ventilation with an air flow rate W500 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 different groups of machines with the same intended use (such groups being 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 a machine with respect to its pollutant concentration parameter.