H2S Properties
When released to the atmosphere, H2S will seek to go to these areas. Why?
Low lying areas. Because H2S is heavier than Air.
Be cautious of ditches, cellars, pits, downhill areas, behind containment.
Air Vapor Density - 1
H2S Vapor Density - 1.19
The IDLH for H2S
100 ppm
My personal monitoring is alarming. What do I do
Evacuate
What is the first priority in rescuing a victim from an H2S environment
Protecting yourself
What year did Colorado become a state?
What is 1876? When is 1876? Huh?
H2S reacts with water to form this acid
What is Sulfuric acid or pyrophoric acid?
Car batteries contain 30-50 precent Sulfuric Acid.
Sulfuric Acid is corrosive to skin, eyes, teeth, and lung. Can also lead to death in severe exposures.
Also causes corrosion and pitting of steel.
The PEL for H2S
What is 10 ppm?
If downwind of an H2S release, you should move
Crosswind AND THEN Upwind
What is the main route of entry for H2S?
Inhalation - Is the main method.
H2S can also enter the body through:
Ingestion, Injection, and Skin Absorption.
What continent is Madagascar part of?
Africa
Mixed with air in correct proportions, H2S is
What is explosive?
At what concentration of H2S do you lose your sense of smell?
What is 25-100 ppm? IT DEPENDS!!
When should you calibrate your personal H2S monitor
Monthly (Unless you use the BW Clip Single Gas - No maintenance required).
Perform Daily Zero Calibrations...
What must you have to wear a respirator
Medical evaluation and a fit test
Name 5 Colorado counties
Adams County514,969Alamosa County16,377Arapahoe County651,621Archuleta County13,267Baca County3,519Bent County5,861Boulder County328,713Broomfield County72,697Chaffee County19,436Cheyenne County1,691Clear Creek County9,427Conejos County7,579Costilla County3,517Crowley County6,018Custer County4,720Delta County31,133Denver County706,799Dolores County2,288Douglas County351,929Eagle County55,693El Paso County722,736Elbert County25,897Fremont County49,007Garfield County61,221Gilpin County5,812Grand County15,629Gunnison County16,851Hinsdale County858Huerfano County6,787Jackson County1,375Jefferson County580,130Kiowa County1,414Kit Carson County7,071La Plata County55,673Lake County7,417Larimer County354,670Las Animas County14,531Lincoln County5,630Logan County21,765Mesa County154,685Mineral County794Moffat County13,240Montezuma County25,916Montrose County42,328Morgan County28,868Otero County18,665Ouray County4,850Park County17,384Phillips County4,497Pitkin County17,471Prowers County11,966Pueblo County167,453Rio Blanco County6,495Rio Grande County11,476Routt County24,899Saguache County6,369San Juan County698San Miguel County8,084Sedgwick County2,459Summit County31,042Teller County24,607Washington County4,834Weld County322,424Yuma County9,944
This is a by-product of burning H2S
What is Sulfur dioxide (SO2)
-Highly Toxic, Colorless, Smell - burned match, heavier than air (2.6 VD).
-At high concentrations, S02 can cause the lungs to fill up with fluid, asphyxiating the exposed person.
-Can also cause chemical pneumonia.
How many ppm are in 1%
10,000 ppm
True or False: The nose is a reliable source for indicating H2S.
Why?
False. The nose is not a reliable source.
H2S causes olfactory fatigue, paralyzing (deadening) the sense of smell.
What are the two types of breathing apparatuses approved for H2S
SCBA and SABA
Who is the current quarterback for the Denver Broncos?
Bo Nix
Formed when H2S reacts with steel
What is Iron Sulfide?
Iron Sulfide is pyrophoric and can spontaneously ignite upon contact with air.
The H2S auto ignition temperature is:
What is 500 degrees F?
-A cigarette burns at 1400 degrees F.
Your personal monitor should be worn in this area 6" to 12" from your face.
Breathing Zone
ANSI recommends that the monitor be worn on the chest.
At what H2S concentration should you don a respirator
10 ppm
What does OSHA stand for?
What is the Occupational Safety & Health Administration?
H2S is soluble in many what?
What are liquids?
Oil, water, eyeballs, etc.
The LEL and UEL of H2S
What are 4.3% and 43%?
Your personal monitor will alarm at what H2S concentrations
10 ppm Low Alarm and 15 ppm High Alarm
Low Alarm: Indicated by slower set of flashing lights and sound.
High Alarm: Rapidly flashing lights and sound. Also accompanied by vibration.
What is the action limit for H2S?
10 ppm
Who played Edward Scissorhands in the classic movie from 1990?
Johnny Depp
Briefly describe how H2S affects the body.
It will suffocate you by paralyzing the respiratory control center in the brain.
You will cease to breath and cardiac arrest may follow.
Alcohol or drugs can quicken this process.
Instant death typically occurs at what concentration?
What is 700+ ppm?
What is a bump test?
The distance surrounding an H2S release where the concentration of H2S will remain at a constant level level for a 24-hour period by way of continuous emission
Radius of Exposure (ROE)
Who is the lead singer of the rock band Nine Inch Nails?
I have no idea. Lets ask him.