2 star yield topics

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) 704-M HAZARD IDENTIFICATION SYSTEM

• This symbol is used to inform firefighters of the hazards that they may encounter with fires in a particular area.

• A diamond-shaped, color-coded symbol with 4 categories graded on a scale of 0 to 4 based on the extent of concern.

• These symbols are placed on doors, cabinets, containers, and in boxes during transport or shipping.

What does blue quadrant represent?

Health Hazard (3rd quadrant)

What does red quadrant represent?

Fire Hazard (2nd quadrant)

What does yellow quadrant represent?

Reactivity (1st quadrant)

What does white quadrant represent?

Specific hazard

Health Hazard grade on a scale of 0 - 4

0 Normal Material

1 Slightly Hazardous

2 Hazardous

3 Extreme Danger

4 Deadly

Fire Hazard grade on a scale of 0 - 4

0 Will Not Burn

1 Above 200°F

2 Below 200°F

3 Below 100°F

4 Below 73°F

Reactivity grade on a scale of 0 - 4

0 Stable

1 Unstable if heated

2 Violent chemical change

3 Shock and heat may deteriorate

4 May deteriorate

Specific hazard study these symbols

OXY - OXIDIZER
ACID - Acid
ALK - Alkali
COR - Corrosive

✪ - Radiation
W - use no water
W - Water reactive

skull and Crossbones

• Acute Toxicity (fatal or toxic)

Environment (non-mandatory)

• Aquatic Toxicity

Flame Over Circle

• Oxidizers

Exploding Bomb

• Explosives

• Self-Reactives

• Organic Peroxides

Corrosion

• Skin Corrosion/Burns

• Eye Damage

• Corrosive to Metals

Gas Cylinder

• Gases Under Pressure

• Chemicals Under Pressure

Exclamation Mark

• Irritant (skin and eye)

• Skin Sensitizer

• Acute Toxicity (harmful)

• Narcotic Effects

• Respiratory Tract Irritant

• Hazard Not Otherwise Classified (non-mandatory)

• Hazardous to Ozone Layer (non-mandatory)

Flame

• Flammables

• Pyrophorics

• Self-Heating

• Emits Flammable Gas

• Self-Reactives

• Organic Peroxides

• Desensitized Explosives

Health Hazard

• Carcinogen

• Mutagenicity

• Reproductive Toxicity

• Respiratory Sensitizer

• Target Organ Toxicity

• Aspiration Toxicity

When a fire is discovered one should follow:

RACE

When handlinga fire extinguisher one should follow:

PASS

What does Acronym RACE stands for?

R - Rescue

A - Alarm

C - Contain

E - Extinguish/Evacuate

What does Acronym PASS stands for?

P - Pull pinn

A - Aim at the base of the fire

S - Squeeze handles

S - Sweep nozzle side to side

Acids are incompatible with?

Bases

Acids (Acetic acid & Sulfuric Acid) are incompatible with?

Oxidizing agents (halogens, nitrate/nitric acid)

Alkali metals (sodium & potassium) are incompatible with?

Carbon dioxide, Chlorinated Hydrocarbons, water

Bromine and Chlorine are incompatible with?

Acetylene, Ammonia

Halogens are incompatible with?

Acetylene, Ammonia, Hydrocarbons

Flammable liquids are incompatible with?

Flammable solids

Mineral acids are incompatible with?

Organic acids

Caustics are incompatible with?

Oxidizers

Perchloric acid are incompatible with?

water-reactive substances

What type of hazard is Fire type A?

Ordinary combustibles: paper, cloth, rubbish, plastic, wood

What type of hazard is Fire type B?

Flammable liquids: grease, gasoline, paints, oils

What type of hazard is Fire type C?

Electrical equipment and motor switches

What type of hazard is Fire type D?

Flammable metals: mercury, magnesium, sodium, lithium

What type of hazard is Fire type E?

Detonation, Explosives (Arsenal Fire)

What type of hazard is Fire type K?

Cooking media: grease, oils, fats

What type of extinguisher is used for Fire type A?

Water, Dry Chemical, Loaded Steam

What type of extinguisher is used for Fire type B?

Dry Chemical, Carbon Dioxide, foam, or halon

What type of extinguisher is used for Fire type C?

Dry Chemical, Carbon Dioxide, halon

What type of extinguisher is used for Fire type D?

Metal X, Sand, Dry Powder, fought by fire fighters only

What type of extinguisher is used for Fire type E?

Allowed to burn out and nearby materials protected

What type of extinguisher is used for Fire type K?

Liquid designed to prevent splashing and cool the fire

accetapble tolerance (standard error) SG

=+/- 0.001

Distilled/Deionized Water

1.00

NaCl 3% SG

1.015

NaCl 5% SG

1.022

NaCl 7% SG

1.035

Sucrose 9% SG

1.034