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2. List of unusual units of measurement - Wikipedia

   en.wikipedia.org/wiki/List_of_unusual_units_of...

   [citation needed] In the concrete and petroleum industry, however, a bag of cement is defined as 94 lb (43 kg) because it has an apparent volume close to 1 cubic foot (28 litres). [61] When ready-mix concrete is specified, a "bag mix" unit is used as if the batching company mixes 5 literal bags of cement per cubic yard (or cubic metre) when a ...

3. List of conversion factors - Wikipedia

   en.wikipedia.org/wiki/List_of_conversion_factors

   ≡ 1 ⁄ 2 gal (imp) = 80 fl oz ... bag (Portland cement) ≡ 94 lb av = 42.637 682 78 kg: ... ≡ 1 lb⋅ft 2 /s 2 = 4.214 011 009 380 48 ...

4. Cement - Wikipedia

   en.wikipedia.org/wiki/Cement

   Cement powder in a bag, ready to be mixed with aggregates and water. [1] Cement block construction examples from the Multiplex Manufacturing Company of Toledo, Ohio, in 1905. A cement is a binder, a chemical substance used for construction that sets, hardens, and adheres to other materials to bind them together.

5. Polystyrene - Wikipedia

   en.wikipedia.org/wiki/Polystyrene

   Sheets of EPS are commonly packaged as rigid panels (common in Europe is a size of 100 cm x 50 cm, usually depending on an intended type of connection and glue techniques, it is, in fact, 99.5 cm x 49.5 cm or 98 cm x 48 cm; less common is 120 x 60 cm; size 4 by 8 ft (1.2 by 2.4 m) or 2 by 8 ft (0.61 by 2.44 m) in the United States). Common ...

6. Polycarbonate - Wikipedia

   en.wikipedia.org/wiki/Polycarbonate

   1–2 g·mm/(m 2 ·day) @ 85%–0% RH gradient: Economics; Price: ... Polycarbonate recycling code PC on the bottom of a 5 gallon water jug made by Greif, Inc.

7. Plasterwork - Wikipedia

   en.wikipedia.org/wiki/Plasterwork

   The first coat or rendering is from 1 ⁄ 2 to 3 ⁄ 4 inches thick, and is mixed in the proportions of from one part of cement to two of sand to one part to five of sand. The finishing or setting coat is about 3 ⁄ 16 inches thick, and is worked with a hand float on the surface of the rendering, which must first be well wetted.

8. Airport security - Wikipedia

   en.wikipedia.org/wiki/Airport_security

   X-ray machines, CTX machines, high-resolution x-rays and ETDs are also used to scan checked bags. All checked baggage is always x-rayed at all major commercial airports. CATSA launched its Restricted Area Identity Card (RAIC) program in January 2007. RAIC is the world's first dual biometric access control system for airports. [31]

9. List of incidents at Disneyland Resort - Wikipedia

   en.wikipedia.org/wiki/List_of_incidents_at...

   This is a summary of notable incidents that have taken place at Disneyland Resort in Anaheim, California.While the Division of Occupational Safety and Health (DOSH, better known as Cal/OSHA) of the California Department of Industrial Relations has ruled that some guest-related incidents are Disney's fault, the majority of fatal incidents were the result of wrongdoing on the guests' part.