Chemical Classification and Physical Hazards

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Explosives (Letupan)

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May explode if exposed to fire, heat, shock, or friction. Avoid ignition sources (sparks, flames, heat). Keep your distance and wear protective clothing.

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Flammable Gases

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A gas or gas mixture having a flammable range with air at 20°C and a standard pressure of 101.3 kPa.

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Flammable Aerosols

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Aerosol dispensers are non-refillable receptacles made of metal, glass, or plastics containing a gas under pressure, allowing contents to be ejected as solid or liquid particles.

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Flammable Liquids

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A liquid having a flash point of not more than 60°C.

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Flammable Solids

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Readily combustible solids that can be easily ignited by brief contact with an ignition source, with flames spreading rapidly.

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Oxidizing Gases

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Any gas or gas mixture which may provide oxygen, causing or contributing to the combustion of other materials more than air does.

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Oxidizing Liquids

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A liquid substance or mixture which may yield oxygen, causing or contributing to the combustion of other materials.

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Oxidizing Solids

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A solid substance or mixture which may yield oxygen, causing or contributing to the combustion of other materials.

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Gases under Pressure

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Gases contained in a receptacle at a pressure of 200 kPa (gauge) or more, or which are liquefied or refrigerated.

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Self-Reactive Chemicals

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A thermally unstable liquid or solid substance or mixture liable to undergo strongly exothermic decomposition without oxygen.