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Older mothballs consisted primarily of naphthalene, but due to naphthalene's flammability, many modern mothball formulations instead use 1,4-dichlorobenzene. The latter formulation may be somewhat less flammable, although both chemicals have the same NFPA 704 rating for flammability. The latter chemical is also variously labeled as para ...
Fire-retardant materials should not be confused with fire-resistant materials. A fire resistant material is one which is designed to resist burning and withstand heat. An example of a fire-resistant material is one which is used in bunker gear worn by firefighters to protect them from the flames of a burning building.
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Forewing uniformly black, without markings, hindwing greyish brown, abdomen black, lutea Anel is a light form in which the central bands are interrupted; the red colour of the abdomen is equally deep almost to the thorax, flavoabdominalis Schultz has the abdomen yellow instead of red; subfusca Schultz female is distinguished by everything which ...
Aircraft carriers stored at the NISMF in Bremerton, 2012.From left to right: Independence, Kitty Hawk, Constellation and Ranger. A Naval Inactive Ship Maintenance Facility (NISMF) is a facility owned by the United States Navy as a holding facility for decommissioned naval vessels, pending determination of their final fate.
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Damp is the collective name given to all gases (other than air) found in coal mines in Great Britain and North America. [1]As well as firedamp, other damps include blackdamp (nonbreathable mixture of carbon dioxide, water vapour and other gases); whitedamp (carbon monoxide and other gases produced by combustion); poisonous, explosive stinkdamp (hydrogen sulfide), with its characteristic rotten ...