HazMat Tech

LC50

the lethal concentration of an inhaled substance that kills 50 percent of the test population during a set exposure time

LCt50

the concentration of a vapor or aerosol chemical agent that incapacitates 50 percent of an exposed population

NFPA 30

flammable and combustible liquids code

NFPA 58

liquefied petroleum gas code

NFPA 70

national electrical code

NFPA 400

hazardous materials code

NFPA 470

hazardous materials/WMD standard for responders

NFPA 475

recommended practice for organizing, managing, and sustaining a hazmat/WMD response program

NFPA 1072

standard for hazmat/WMD emergency response personnel professional qualifications

NFPA 1620

standard for pre-incident planning

NFPA 1990

standard for protective ensembles for hazmat and CBRN operations

NFPA 1991

standard on vapor protective ensembles for hazmat emergencies and CBRN terrorism incidents

NFPA 1992

standard on liquid splash protective ensembles and clothing for hazmat emergencies

NFPA 1994

standard on protective ensembles for first responders to hazmat emergencies and CBRN terrorism incidents

OSHA 29 CFR 1910.120

federal regulation for hazardous waste operations and emergency response (HAZWOPER)

Types of radiation

alpha, beta, gamma, neutron

Hazard Class 1

explosives

Hazard Class 2

gases

Hazard Class 3

flammable and combustible liquid

Hazard Class 4

flammable solids, spontaneously combustible, and dangerous when wet

Hazard Class 5

oxidizers and organic peroxides

Hazard Class 6

toxic (poison) and infectious substances

Hazard Class 7

radioactive materials

Hazardous Class 8

corrosive substances

Hazard Class 9

miscellaneous dangerous goods

toxicology

the study of a chemical or physical agents that harm the biological systems which they interact

toxicity

material’s ability to harm biological tissue

exposure

when a person comes in contact with the hazmat

dose

concentration or amount of material

acute exposure

single and immediate exposure