Hazards: May explode from heat, shock, friction, or contamination. May react violently or explosively in contact with air, water, or foam. It may be ignited by heat, sparks, or flames. Vapors may travel to the source of ignition and flashback. Containers may explode when heated. Ruptured cylinders may rocket.

It'll determine the level of PPE that they might have to use as well as how far they would have to be. In this case, it is a leak area, it would be 100 meters, and if it's a tank, rail car, or highway tank involved in a fire, then it is 800 meters.

Hazards: May explode from heat, shock, friction, or contamination. May react violently or explosively in contact with air, water, or foam. It may be ignited by heat, sparks, or flames. Vapors may travel to the source of ignition and flashback. Containers may explode when heated. Ruptured cylinders may rocket.

Hazards: Maty be ignited by heat, sparks, or flames. May form explosive mixtures with air. Vapors from liquefied gas are initially heavier than air and spread along the ground. Vapor may travel to source of ignition and flash back. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release flammable gas through pressure relief devices. Containers may explode when heater. Ruptured cylinders may rocket.

It'll determine if we wear just SCBA for chemicals without fires or thermal protection.

Hazards: May explode from heat, shock, friction, or contamination. May react violently or explosively in contact with air, water, or foam. It may be ignited by heat, sparks, or flames. Vapors may travel to the source of ignition and flashback. Containers may explode when heated. Ruptured cylinders may rocket.

Health Hazards: Vapors may cause dizziness or asphyxiation without warning, especially when in closed or confined areas. Vapors, when liquefied gas, are initially heavier than air and spread along the ground. Contact with gas, liquefied gas, or cryogenic liquids may cause burns, severe injury, and/or frostbite.

Fire/Explosive Hazards: Containers may explode when heated. Ruptured cylinders may rocket.

Always wear SCBA and your thermal protective clothing.

Hazards: May explode from heat, shock, friction, or contamination. May react violently or explosively in contact with air, water, or foam. It may be ignited by heat, sparks, or flames. Vapors may travel to the source of ignition and flashback. Containers may explode when heated. Ruptured cylinders may rocket.

Health Hazards: Vapors may cause dizziness or asphyxiation without warning, especially when in closed or confined areas. Vapors, when liquefied gas, are initially heavier than air and spread along the ground. Contact with gas, liquefied gas, or cryogenic liquids may cause burns, severe injury, and/or frostbite.

Fire/Explosive Hazards: Containers may explode when heated. Ruptured cylinders may rocket.

Always wear SCBA and your thermal protective clothing.

Hazards: Substance does not burn but will support combustion. Some may react explosively with fuels. May ignite combustibles (wood, paper, oil, clothing, etc). Vapors from liquefied gas are initially heavier than air and spread along the ground. Runoff may create fire or explosion hazards. Containers may explode when heated. Ruptured cylinders may rocket.

Wear SCBA and chemical protective clothing when there is no risk of fire.

Hazards: Vapors may be irritating and/or corrosive. Contact with gas or liquefied gas may cause burns, sever injury and/or frostbite. Fire with produce irritating, corrosive, and/or toxic gases. Runoff from fire control or dilution water may cause environmental contamination.

Wear your SCBA, chemical protective clothing if no fire, and thermal protection if there is a fire.

Hazards: Some may burn, but none ignite readily. Containers may explode when heated. Some may be transported hot. For UN3508, the Capacitor is asymmetric; be aware of possible short-circuiting, as this product is transported in a charged state. Polymetric beads, expandable (UN 2211) may evolve flammable vapours.

You want to wear positive pressure SCBA and structural firefighters' protective clothing, but it'll provide minimal chemical protection. It will determine how far we need to evacuate from.

Hazards: Flammable/combustible material. It may be ignited by heat, sparks, or flames. Vapors may form explosive mixtures with air. Vapors may travel to the source of ignition and flashback. Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas (sewers, basements, tanks, etc.)

Vapor explosion hazard indoors, outdoors, or in sewers. Those substances designated with a (p) may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazards. Containers may explode when heated. Many liquids will float on water.

Wear positive pressure SCBA. Wear chemical protective clothing.

Depending on what it is, like liquid or fire, you want to be 150 feet away.

Hazards: Toxic and/or corrosive; inhalation, ingestion, or skin contact with material may cause severe injury or death. Contract with molten substances may cause severe burns to the skin and eyes. Avoid skin contact. Fire may produce irritating, corrosive, and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental contamination.

Wear chemical protective clothing or structural firefighters clothing for thermal protection.

For liquids you want to be 150 feet away and for solids 75 feet away.

Hazards: Vapors may form explosive mixtures with air. Vapors may travel to the source of ignition and flash back. Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas (sewers, basements, tanks, etc.) Vapor explosion hazard indoors, outdoors, or in sewers. Those substances designed with a (P) may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazards. Containers may explode when heated. Many liquids will coat on water. The substance may be transported hot. For hybrid vehicles, (Lithium-ion or sodium ion batteries) or (Sodium batteries) should also be consulted. If molten aluminum is involved, refer to guide 169.

Wear positive pressure SCBA and structural firefighters' protective clothing. If you isolate the spill or leak area, be 50 ft away in all directions. Large spill, 1000 feet. and if a fire is 800 meters away.