Hazardous Materials Information System (HMIS)

blue

apical

health

red

second

flammability

yellow

third

reactivity

white

basal

personal protective index

4

severe hazard

Life-threatening, major or permanent damage may occur from a single or repeated exposure.

3

serious hazard

Material can cause major injury unless prompt action is taken and medical treatment administered.

2

moderate hazard

Material may cause temporary or minor injury.

1

slight hazard

Material may cause irritation or minor reversible injury.

0

minimal hazard

Material poses no significant risk to health.

4

severe hazard

Includes very flammable gases or very volatile, flammable liquids.

3

serious hazard

Material capable of ignition under almost all normal temperature conditions.

2

moderate hazard

Material must be moderately heated before ignition will occur.

1

slight hazard

Material must be preheated for ignition to occur.

0

minimal hazard

Material normally stable and will not burn unless heated.

4

severe hazard

Readily capable of detonation or explosive decomposition at normal temperatures and pressures.

3

serious hazard

Material capable of detonation or explosive reaction, but requires a strong initiating source, or must be heated under confinement before ignition. Reacts explosively with water.

2

moderate hazard

Material normally unstable and may detonate. May react violently with water.

1

slight hazard

Material normally stable but can become unstable at high temperatures and pressures. May react with water but not with a violent release of energy.

0

minimal hazard

Material normally stable even under fire conditions and will not react with water.

Key

Safety Glass-es

Face Shield

Splash Gog-gles

Airline Hood or Mask

Glove

Syn-thetic Apron

Dust Respi-rator

Vapor Respi-rator

Dust & Vapor Respi-rator

Full Suit

Boots

A

x