Blaine test
A test for determining the fineness of cement, or other fine material, on the basis of the permeability to air […]
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Blaine fineness
The fineness of a powdered material, such as cement, as determined by the Blaine apparatus; usually expressed as a surface
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Blaine apparatus
An apparatus for measuring the surface area of a finely ground cement, or the like, on the basis of its
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blade frequency
The number of times fan blades pass a given point per second; equals the number of blades in the fan
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blacksmith shop
A shop where iron bars are forged into objects such as tools, and where horses are fitted with horseshoes.
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black plate
Uncoated cold-rolled steel in sheets, usually 12 in. (30.5 cm) to 32 in. (81.3 cm) in width.