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Apparatus and method for measuring permeation of contaminants through protective materials

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AECBC

A testing apparatus and method includes a PTFE layer; placing a sorbent pad on the PTFE layer; applying contaminants to a protective material; placing the protective material adjacent to the sorbent pad with the side having contaminants opposite the sorbent pad; applying a weight to the protective material causing the protective material to contact the sorbent pad, and determining any permeation of contaminants through said protective material causing exposure on the sorbent pad to the contaminants; and measuring a level of contamination of the sorbent pad upon exposure to any contaminants which permeated the protective material. A second PTFE layer may be placed in between the weight and the protective material. Additionally, another PTFE layer may be placed in between the protective material and the sorbent pad. The protective material may include any of air impermeable materials, air permeable materials, and semi-permeable materials.

Inventors: 
D'onofrio, Terrence G.
Patent Number: 
Technical domain: 
Sensors and Measurement
FIle Date: 
2012-02-24
Grant Date: 
2015-05-05
Grant time: 
1,166 days
Grant time percentile rank: 
21
Claim count percentile rank: 
4
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
UNITED STATES OF AMERICA