The Gravi-Sert™ filter capsule is a self-contained filter “cassette capsule” that captures all particles collected by a filter cassette. It consists of a PVC filter membrane sealed to a static-dissipative PVC shell to create the capsule. This capsule is then weighed and inserted into a Zefon 2-Piece filter cassette with a support pad as a complete unit. After sampling the entire capsule is removed and weighed.How it works:Air flows into the filter cassette through the inlet and continues into the Gravi-Sert™. Particulate is then contained within the Gravi-Sert™ while the airflow continues through the filter membrane and exits out the cassette outlet. Features:
Gravi-Sert is suitable for collecting the following contaminants:
Gravi-Sert™ is a trademark of Zefon International, Inc.
Gravi-Sert Instructions for Use
Accounting for Cassette Wall Deposits Gravimetrically - The Zefon Gravi-Sert Solution
NIOSH Manual of Analytical Methods - Consideration of Sampler Wall Deposits
NIOSH Manual of Analytical Methods, Chapter O
NIOSH and AIHA Developments on Including Closed Face Cassette Wall Deposits
OSHA On Wiping the Interior Walls of 37-mm Closed-face Cassettes: an OSHA Perspective
Closed-Face Filter Cassette (CFC) Sampling-Guidance on Procedures for Inclusion of Material Adhering to Internal Sampler Surfaces.
Gravimetric Analysis of Particulate Matter using Air Samplers Housing Internal Filtration Capsules
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