Meters Flashcards
Order of Metering for Unknown Substance
Radiation pH Test LEL O2 VOC Further Testing
What are the gases are 6-Gas Meter Multi-Rae
O2 = Oxygen LEL = Lower Explosive Limit CO = Carbon Monoxide H2S = Hydrogen Sulfide VOC = Volatile Organic Compound SO2 = Sulfur Dioxide (Yellow) or HCN = Hydrogen Cyanide (Orange)
LEL Sensor
Lower Explosive Limit
Catalytic Bead
Combustible sensors calibrated with methane
CO Sensor
Carbon Monoxide
Electrochemical Sensor
H2S Sensor
Hydrogen Sulfide
Electrochemical Sensor
SO2 Sensor
Sulfur Dioxide
Electrochemical Sensor
VOC Sensor
Volatile Organic Compound Photoionization Detector (PID)
O2 Sensor
Oxygen
Electrochemical Sensor
What is HCN
Hydrogen Cyanide
Colorless
Poisonous
Odor of bitter Almonds
Lighter then Air
What is SO2
Sulfur Dioxide
Colorless
Toxic gas
Smell of burnt matches
Heavier then Air
What is H2S
Hydrogen Sulfide
What type of Sensor is LEL
Catalytic Bead
Which Burns the Gas
What type of Sensor is VOC
PID, Photoionization Detector
What type of Sensor is O2
Electrochemical Sensor
What type of Sensor is CO
Electrochemical Sensor
What type of Sensor is H2S
Electrochemical Sensor
What type of Sensor is SO2
Electrochemical Sensor
What type of Sensor HCN
Electrochemical Sensor
LEL Alarm Levels
Low alarm 10%
High Alarm 20%
Meter Max 100%
CO Alarm Levels
Low alarm 35ppm (TWA)
High Alarm 200ppm (IDLH)
Meter Max 500ppm
H2S Alarm Levels
Low Alarm 10ppm
High Alarm 20ppm
Meter Max 100ppm
SO2 Alarm Levels
Low Alarm 2ppm
High Alarm 10ppm
Meter Max 20ppm
VOC Alarm Levels
Low Alarm 50ppm
High Alarm 100ppm
Meter Max 1,000ppm
O2 Alarm Levels
Low Alarm 19.5%
High Alarm 23.5%
Meter Max 30%
HCN Alarm Levels
Low Alarm 4.7ppm
High Alarm 25ppm
When metering for an unkown at what level radiation do we stop and switch to Radiological guidelines?
greater then 2mR/hr
What is the acceptable range for pH?
5-9
What is the alarms for the PRD Dose and Rate
Rate:
2mR/Hr & 10R/H
Dose:
2R & 5R
