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Item Number: 7P52P-GS

CASSETTE, 37MM 2PC, 5.0µm PVC GRAVI-SERT PRE 50/BX

37mm 2-piece Styrene Cassette preloaded with 5.0µm Gravi-Sert™ Filter Capsule. 50/bx
Item Number: 7P52P-GS
Manufacturer: Zefon International
Availability: In Stock

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:

  • Contains 100% of the sample collected within the capsule.
  • Manufactured from weight-stable PVC materials.
  • PVC shell is static-dissipative.
  • Meets NIOSH requirements for including "wall deposits” as part of the sample.


Applications:

Gravi-Sert is suitable for collecting the following contaminants:

 CONTAMINANT  NIOSH METHOD 
 Carbon Black  5000
 Dust - Total  0500
 Dust - Respirable  0600

 

Gravi-Sert™ is a trademark of Zefon International, Inc.



Literature:


Gravi-Sert Instructions for Use

Accounting for Cassette Wall Deposits Gravimetrically - The Zefon Gravi-Sert Solution

 

Reference Articles:


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