Precision weighing is hard enough without troublesome concerns over filter stability and weighing repeatability. However, the Lab-Weigh Gravimetric Filters from MTL actually increase the precision and accuracy of laboratory weighing.
The PTFE filter captures particulate with a PTFE weighing media. It also has a support ring made of PFA, a PTFE derivative.
These filters are less susceptible to hygroscopic absorption than alternatives. Each filter comes with an ID code conveniently placed on both sides.
This provides a quality control system that handles data custody with greater efficiency.
Lab-weigh filters will get you more accurate results with their enhanced weighability, and you'll be in control of the level of quality of your weighing.
Gravimetric Filters
The PT47 from MTL is engineered with a PTFE membrane and hydro-inert support ring. It is not susceptible to moisture
fluctuation and improves laboratory weighing results by reducing uncertainties associated with filter weighing.
MTL Filter Specifications
- Media PTFE membrane with Flouropolymer support ring
- Efficiency 99.99% minimum on 9.1 mm particle @ 10.5 fpm air velocity
- Air Flow 2.5 cfm/ft2 minimum air flow @ 0.5" H2O
- Ring thickness 0.016" typical
- Diameter 47mm
- Humidity < 2 mg change on a 1° C dew point change
