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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.
A fire retardant is a substance that is used to slow down or stop the spread of fire or reduce its intensity. This is commonly accomplished by chemical reactions that reduce the flammability of fuels or delay their combustion. [1] [2] Fire retardants may also cool the fuel through physical action or endothermic chemical reactions.
A fire-resistance rating typically means the duration for which a passive fire protection system can withstand a standard fire resistance test. This can be quantified simply as a measure of time, or it may entail other criteria, involving evidence of functionality or fitness for purpose.
The reddish stems of this herbaceous perennial are usually simple, erect, smooth, 0.5–2 metres (1 + 1 ⁄ 2 – 6 + 1 ⁄ 2 feet) high with scattered alternate leaves. [2] The leaves are spirally arranged, entire, narrowly lanceolate, and pinnately veined, the secondary leaf veins anastomosing, joining together to form a continuous marginal vein just inside the leaf margins. [3]:
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Builder's tea refers to a strong cup of tea. Builder's tea, also known as a builder's brew or gaffer's tea, is a British English colloquial term for a strong cup of tea. [1] [2] It takes its name from the inexpensive tea commonly drunk by labourers taking a break.
A 16th-century brewery Brewing is the production of beer by steeping a starch source (commonly cereal grains, the most popular of which is barley) in water and fermenting the resulting sweet liquid with yeast. It may be done in a brewery by a commercial brewer, at home by a homebrewer, or communally. Brewing has taken place since around the 6th millennium BC, and archaeological evidence ...
People choose to brew their own beer for a variety of reasons. Many homebrew to avoid a higher cost of buying commercially equivalent beverages. [10] Brewing domestically also affords one the freedom to adjust recipes according to one's own preference, create beverages that are unavailable on the open market or beverages that may contain fewer calories, or less or more alcohol.