ANSWERS SURE A+
✔✔lab chemicals - ✔✔material with health, flammability, or instability hazard of 2, 3 or 4
✔✔Class 0 reactivity hazard - ✔✔normally stable, even in fire conditions.
✔✔class 1 reactivity hazard - ✔✔normally stable but can become unstable at elevated
temperatures and pressures
✔✔class 2 reactivity hazard - ✔✔readily undergo violent chemical change at elevated
temps and press
✔✔class 3 reactivity hazard - ✔✔capable of detonation or explosion but require a strong
initiation source
✔✔Class 4 reactivity hazard - ✔✔readily capable of detonation at normal temperatures
and pressures
✔✔When is fire dept permit required - ✔✔operate a nonproduction lab with
more than 1gal of flammable/combustible
or 70SCF of flammable gas
✔✔where should hazard signs be placed - ✔✔conspicuously fixed on stationary
containers, and entrances that store chemicals
✔✔combustible liquid - ✔✔any liquid with flash point above 100F
✔✔Lab type 1:
Fire Rating
Fire protection
Flammable liquids - ✔✔2
, sprinklered
30 gal
✔✔Lab type 2:
Fire Rating
Fire protection
Flammable liquids - ✔✔1
sprinklered
25gal
✔✔Lab type 3:
Fire Rating
Fire protection
Flammable liquids - ✔✔2
not sprinklered
20gal
✔✔Lab type 4:
Fire Rating
Fire protection
Flammable liquids - ✔✔1
not sprinklered
15 gal
✔✔Schools K-12:
Fire Rating
Fire protection
Flammable liquids - ✔✔1 or 2
sprinklered or non
20 gal (5 gal combustible liquids)
✔✔hazard rating - ✔✔0 - 4 = lowest to highest
I - V = highest to lowest
✔✔Class 0 Health Hazard - ✔✔no hazards
✔✔Class 1 Health Hazard - ✔✔can cause significant irritation
✔✔class 2 Health Hazard - ✔✔can cause temporary incapacitation, residual injury
✔✔Class 3 Health Hazard - ✔✔can cause serious or permanent injury
✔✔Class 4 Health Hazard - ✔✔can be lethal