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HazMat Smart-Strip
Chemical Agent Indicating Device
Requirement: A user friendly wearable chemical indicator that can be worn by first responders such as Private Citizens, Police officers, Firefighters, EMS, Hospital workers, USAR Teams, and the military. Current technology requires responders to place a number of indicator strips taped to their clothing in an effort to detect a contaminated atmosphere (aerosolized) or surface (liquid). In addition current technology is very small and not designed for responders to use in the field while dressed in chemical protective clothing. The need is for an easy to use, cost effective, reliable, detection medium that allows the user simple means to read results instantly in the field.
Technical Description: The HazMat Smart Strip is
equipped with a peal and stick backing or can be clipped to the responders
clothing ensemble. The devices consisting of eight specifically designed
reagent strips what when in contact with a category of products produces a
visible color change.
Key
advancements over current technology include simple protocols, broad-based
compatibility, intuitive response, the proper selection and combining of
eight reagents to one unit for ease of use. The eight reagents are self-contained
and activated by removing the protective covering that is designed to
preserve the indicator layer until ready for use. All of the reactive
components have been directly integrated within the layers to remove any
requirement for applying additional strips of reagents, or buffer
solutions, as is the case with conventional technologies. The
color-developing indicator layer contains is a chemical sensitive paper
that transitions from the color standard that is placed around each
indicator strip (Border) in the presence of one of the eight categories of
chemicals.
Table 1 illustrates the effect of certain types of chemical with the reagent strips and their performance.
|
Reagent |
Paper Color |
Positive Indication |
Sensitivity level |
|
Chlorine |
Light Yellow |
Blue / white spots |
1 ppm |
|
PH |
Light Brown |
Red / blue |
Above or below neutral |
|
Fluoride |
Pink |
Yellow white spots |
20 ppm |
|
Nerve |
Brown |
Gold, red, green |
In contact with G, H, V agents |
|
Oxidizers |
White |
Blue-violet spots |
1 ppm |
|
Arsenic |
White |
Yellow-brown |
.5 ppb |
|
Hydrogen Sulfide |
White |
Brown / black |
5 ppm |
|
Cyanide |
Pale Green |
Blue |
.2 ppm |
Reaction Time: Instantaneous
Training: One benefit of the HazMat Smart Strip is its ease of use. Training can be conducted before use and requires minimal instructional time.
Advantages & Limitations: Advantages include a single self-contained sensor technology that is both reliable and easy to read in the field. Limitations include potential self life considerations (two years).
Applicable Standards and Test and Evaluation Results:
The HazMat Smart Strip uses technologies that have been tested in various markets. The Department of Defense has tested the nerve agent component with positive results. In addition the other components are currently utilizes by a number of other industries both nationally and internationally. End-user feedback, third-party observations, and laboratory analyses were considered in the development of the HazMat Smart-Strip.
The HazMat Smart- Strip seems to be a proven technology that has been shown to be viable in detecting warfare grade nerve agents, and other chemical agents by independent laboratories.
Alternative Products: M8, M9, PH Paper, Chemical classifier, colorimetric tubes, various electronic monitoring devices
Contacts at using Departments and Organizations: The HazMat Smart-Strip is in use by several federal agencies, local governments, and hospitals. Contacts are currently unavailable due to the classified nature of the product.
"Information contained herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, is for the purpose of advising Emergency Response organizations of the existence of new technology that may benefit their needs and does not constitute or imply any endorsement, recommendation, or favoring by the National Technology Transfer Center, Wheeling Jesuit University, Inc., the Federal Emergency Management Agency, or any other private or government agency. Verification of the information herein through review of test data and contact with other users is the responsibility of the perspective user. The aforementioned organizations do not accept any liability for any circumstance arising from procurement or use of this technology."
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