High Volume Sampler
Yash High Volume Air Sampler is a basic instrument used for the monitoring of Suspended Particulate matter (S.P.M.) and gaseous pollutants in ambient air. For SPM measurement, known quantity of air is allowed to pass through filter paper for a period of 1 hr / 4 hrs / 8 hrs / 24 hrs and SPM concentration can be determined by gravimetric analysis. For gaseous pollutants, ambient air is allowed to pass through suitable absorbing solution at a rate of 0.4 to 0.6 L.P.M. and concentration of gaseous pollution can be determined by analysis of respective absorbing solution by colourimetrically.