Chapter 5 (Gases) Flashcards
Symbol for Carbon Monoxide?
CO
Weight of Carbon Monoxide?
0.97
Explosive Range of Carbon Monoxide?
12.5-74
Symbol of Oxygen?
02
Weight of Oxygen?
1.10
Explosive range of Oxygen?
Not explosive
Symbol of Hydrogen Sulphide?
H2S
Weight of Hydrogen Sulphide?
1.19
Explosive range of Hydrogen Sulphide?
4.3-45
Symbol of Carbon Dioxide?
CO2
Weight of Carbon Dioxide?
1.53
Explosive range of Carbon Dioxide?
Not explosive
Explosive range of Carbon Dioxide?
Not explosive
What is the symbol for Nitrogen Dioxide?
N02
What is the explosive range of Nitrogen Dioxide?
Non explosive.
What gases are produced while burning rubber?
Carbon Monoxide
Chlorine
Hydrogen Chloride
Phosgene
Sulphur Dioxide
Hydrogen Sulphide
Nitrogen Dioxide
Ammonia
Hydrogen Cyanide
Arsine
Phospine
During and following a fire, what are the two greatest hazards to life?
Carbon Monoxide Poisoning
Oxygen Deficiency
What is TLV?
Threshold Limit Value - concentration value employees can be exposed to over time without effect.
What is TWA?
Time weighted average - based on a 40 hour work week.
What is a concentration equivalent?
Formula used to determine the concentration beyond an 8 hour shift.
What is STEL?
Short Term Exposure Limit - 15 minute window that should never been exceeded, 60 min between and no more than 4 times a day.
What is Median Lethal Dose?
Dose of a substance to kill 50% of the general population
What is LEL AND UEL?
Lower explosive limit
Upper explosive limit
Concentration of the gas or vapour in air to will ignite
