scope:

This standard specifies a manual gravimetric method for the measurement of the concentration and mass flow rate of particulate matter in a moving gas stream in confined spaces such as ducts, chimneys and flues. This method can be used to determine concentrations ranging from 0,005 g/m3, to 10 g/m3. For concentrations under 0,050 g/m3, the inaccuracy of this method will be greater than 10%. It is pramarily a reference method for the determination of particulate matter emitted from stationary sources and it can also be used for calibrating automatic continuous particulate monitors. The method should be applied as much as possible under steady state conditions of the gas flow in the duct. It is not suitable for use on ventilation or air conditioning systems, indoor atmospheres, or gases carrying droplets. This standard also sets out requirements for the design features of apparatus which can be used for the determination if correctly used and indicates basic requirements for the positioning of sampling facilities.