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  2. Gas leak - Wikipedia

    en.wikipedia.org/wiki/Gas_leak

    Examples of a Grade 1 leak are: Any leak which, in the judgment of operating personnel at the scene, is regarded as an immediate hazard. Escaping gas that has ignited. Any indication of gas which has migrated into or under a building, or into a foreign sub-structure.

  3. List of chemical warfare agents - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_warfare...

    Bromobenzyl cyanide (CA) [1] Bromomethyl ethyl ketone. Capsaicin (OC) Chloracetophenone (MACE; CN) Chloromethyl chloroformate. Dibenzoxazepine (CR) Ethyl iodoacetate. Ortho-chlorobenzylidene malononitrile (Super tear gas; CS) Trichloromethyl chloroformate.

  4. Octane rating - Wikipedia

    en.wikipedia.org/wiki/Octane_rating

    An octane rating, or octane number, is a standard measure of a fuel 's ability to withstand compression in an internal combustion engine without causing engine knocking. The higher the octane number, the more compression the fuel can withstand before detonating. Octane rating does not relate directly to the power output or the energy content of ...

  5. HAZMAT Class 3 Flammable liquids - Wikipedia

    en.wikipedia.org/wiki/HAZMAT_Class_3_Flammable...

    Divisions. Class 3: Flammable Liquids. A flammable liquid is a liquid having a flash point of not more than 60 °C (140 °F), or any material in a liquid phase with a flash point at or above 37.8 °C (100 °F) that is intentionally heated and offered for transportation or transported at or above its flash point in a bulk packaging.

  6. Gas - Wikipedia

    en.wikipedia.org/wiki/Gas

    Drifting smoke particles indicate the movement of the surrounding gas.. Gas is one of the four fundamental states of matter.The others are solid, liquid, and plasma. [1] A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide).

  7. Combustibility and flammability - Wikipedia

    en.wikipedia.org/wiki/Combustibility_and...

    Combustibility and flammability. A combustible material is a material that can burn (i.e., sustain a flame) in air under certain conditions. A material is flammable if it ignites easily at ambient temperatures. In other words, a combustible material ignites with some effort and a flammable material catches fire immediately on exposure to flame.

  8. List of gases - Wikipedia

    en.wikipedia.org/wiki/List_of_gases

    Near misses. This list includes substances that boil just above standard condition temperatures. Numbers are boiling temperatures in °C. 1,1,2,2,3-Pentafluoropropane 25–26 °C [151][3] Dimethoxyborane 25.9 °C. 1,4-Pentadiene 25.9 °C. 2-Bromo-1,1,1-trifluoroethane 26 °C. 1,2-Difluoroethane 26 °C. Hydrogen cyanide 26 °C.

  9. Charles's law - Wikipedia

    en.wikipedia.org/wiki/Charles's_law

    Continuum mechanics. Charles's law (also known as the law of volumes) is an experimental gas law that describes how gases tend to expand when heated. A modern statement of Charles's law is: When the pressure on a sample of a dry gas is held constant, the Kelvin temperature and the volume will be in direct proportion.