Porometry Articles & Analysis
3 articles found
Surgical masks and respirators are typically made of nonwoven polypropylene fabric and mostly consist of three (or more) layers. The first and third layers are generally spunbond, while the middle layer is meltblown. This composition is commonly referred to as SMS technology (Spunbond/Meltblown/Spunbond). Three layers of respirator fabric While the efficiency of face masks is measured by ...
Specialized devices called porometers use capillary flow porometry to characterize porosity and pore size distribution. Porometers are necessarily complex and quite expensive; and as an alternative in cases where approximations are sufficient, it is possible to simply estimate porosity by carefully measuring the mass of water, or liquid, a membrane can hold. ...
The testing and measurement of a fabric's porometry is inherently challenging due to the size and magnitude of pores within a ...