1830-6236WHATMAN fiberglass filter membrane PM2.5 filter paper strip

Suspended particulate matter (PM) is a group of composite substances distributed in the atmosphere, with diameters ranging from a fraction of a micrometer to several hundred micrometers. The two most important parts of particulate matter are inhalable particles (<2.5 microns) and fine particles (<10 microns). Generally, monitoring and manual comparison are carried out through the filter membrane weight method, namely PM2.5 and PM10 monitoring. The vast majority of particle weight determination methods are based on collecting samples onto a filter membrane with stable weight and low chemical background, which usually takes 8 hours or more. The concentration of particles in ambient air or exhaust gas is evaluated by measuring the weight of the filter membrane before and after sampling.1830-6236WHATMAN fiberglass filter membrane PM2.5 filter paper strip1830-6236WHATMAN fiberglass filter membrane PM2.5 filter paper strip

WHATMAN HGF61 hydrophobic fiberglass filter membrane PM2.5 filter belt 1830-6236Ordering information:

Suspended particulate matter (PM) is a group of composite substances distributed in the atmosphere, with diameters ranging from a fraction of a micrometer to several hundred micrometers. The two most important parts of particulate matter are inhalable particles (<2.5 microns) and fine particles (<10 microns). Generally, monitoring and manual comparison are carried out through the filter membrane weight method, namely PM2.5 and PM10 monitoring. The vast majority of particle weight determination methods are based on collecting samples onto a filter membrane with stable weight and low chemical background, which usually takes 8 hours or more. The concentration of particles in ambient air or exhaust gas is evaluated by measuring the weight of the filter membrane before and after sampling.