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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
Harper, M. Recent Advances in Occupational Exposure Assessment of Aerosols. Int. J. Environ. Res. Pub. Health, vol 18(17) DOI: 10.3390/ijerph17186820, 18pp.
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Zefon International 5350 SW 1st Lane Ocala, Florida 34474, USA Map US
+1-800-282-0073 (US) +1-352-854-8080