Ch. 5 - Estimating Potential Harm and Planning a Response

Question 1

what is the number one predictor of a hazmat incident?

Answer 1

location and occupancy

Question 2

TLV/STEL

Answer 2

threshold limit value/short term exposure limit; max concentration a person can be exposed to in 15-min intervals up to 4 times per day

Question 3

TLV/TWA

Answer 3

threshold limit value/time-weighted average; max airborne concentration a worker could be exposed to for 8 hours a day, 40 hours a week

Question 4

TLV/C

Answer 4

threshold limit value/ceiling; max amount a worker could be exposed to, even for an instant

Question 5

REL

Answer 5

recommended exposure level; establised by NIOSH; similar to OSHA’s PEL

Question 6

PEL

Answer 6

permissible exposure limit; OSHA; established standard limit of exposure to a hazardous material

Question 7

TLV

Answer 7

threshold limit value; the point at which a haz material begins to affect a person

Question 8

IDLH

Answer 8

immediately dangerous to life and health

Question 9

3 types of IDLH environments

Answer 9

toxic, flammable, oxygen deficient

Question 10

What is a small spill?

Answer 10

less than 52 gallons or less than 661 pounds of a solid

Question 11

penetration

Answer 11

movement of a haz material through closures, seams, porous materials

Question 12

permeation

Answer 12

process by which a substance moves through a material at the molecular level

Question 13

degradation

Answer 13

physical destruction of a material through chemical exposure or ambient conditions

Question 14

NFPA 1994

Answer 14

covers performance of protective ensembles

Question 15

NFPA 1994 classes

Answer 15

Class 2=liquid-splash with SCBA; Class 3=liquid-splash with APR; Class4=particles and liquid-borne viral protection