Chemical Detection - A1 Flashcards
What does a reading of “Clear, Clear, Clear” on the M256 Kit tell us?
There is detection of nerve agent in the environment
What does a “red” result in the First Defender or TruDefender indicate?
There is no library match for the sampled substance
What agents is M8 paper capable of detecting?
Blister agents and nerve agents
What CWAs can the JCAD detect?
Blister and nerve agent, as well as blood agent
What will signify a blood agent is detected?
‘H’ will signal at twice its normal speed
What does a “green” result in the First Defender or TruDefender indicate?
Positive match with a library spectrum
What are the First Defender and TruDefender intended to provide?
Presumptive identification of a material of interest
What three sorts of materials cause problems for the First Defender?
Explosive and flammable materials may be activated by the device’s laser; highly fluorescent materials can obscure the RAMAN signal; non-covalently bonded materials may not generate enough signal to be identifiable
What are the two main configurations for the M4 JCAD
Survey and Monitor
What does a flashing amber diamond on the JCAD indicate?
Sieve pack will need to be changed within 72 hours
What mode must the JCAD be in to detect blood agents?
5-Second CWA mode
Where can we expect to find Joint Service Lightweight Standoff Chemical Agent Detector (JSLSCAD)?
In the NBCRV (Stryker)’s sensor suite
What is the primary purpose of the MultiRae Pro?
Determine presence of atmospheric hazards in an area of interest
What does a “yellow” result in the First Defender or TruDefender indicate?
Close match, but an additional method of identification is needed
What can affect the transmission of UV light needed to get accurate readings from the PID?
Dust and humidity
What is Tab 2 used for on the M256 Kit?
Testing for Lewisite
What tells us how to interpret a color change on M8 paper?
Inside cover of the M8 booklet
What are the three modes for the M4 Joint Chemical Agent Detector (JCAD)?
5-Second CWA, 1-Second CWA, and 5-Second TIC
Roughly how long does it take to use an M256 Kit in its entirety?
17 minutes
What is the mechanism by which the First Defender identifies a sample?
RAMAN Spectroscopy
What does a “blue” result in the First Defender or TruDefender indicate?
There is a mixture with identifiable components
What does a reading of “Clear, Clear, Blue” on the M256 Kit tell us?
There is no detection of blister, blood, or nerve agent
How often is a Full Span calibration of the MultiRae required?
Every 30 days, after sensor changed, or after failed Bump Test
What is a measured by the MultiRae’s Photoionization Detector (PID)?
Volatile Organic Compounds (VOCs)
What is the mechanism by which the TruDefender identifies a sample?
Fourier Transform Infrared (FTIR) Spectroscopy
