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Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...
Fisher Engineering is an American manufacturer of snowplows and other professional snow removal equipment, located in Rockland, Maine. Fisher Engineering is a subsidiary of Douglas Dynamics ( NYSE : PLOW ), which also owns Western Products , Blizzard, and TrynEx International, each producing their own snowplow brands.
Water meters are frequently installed in environments where they are exposed to rain, flooding, and dust, necessitating robust protection to maintain accurate and reliable operation. An IP68 rating indicates that a device is completely dust-tight and can withstand continuous immersion in water beyond 1 meter depth, as specified by the manufacturer.
The half-angle (between the taper surface and the axis of the pipe) is arctan(1 ⁄ 32) ≈ 1.7899° ≈ 1° 47′. The standard for Nominal Pipe Size (often abbreviated NPS, which should not be confused with the abbreviation NPS for the straight thread form standard) is loosely related to the inside diameter of Schedule 40 series of sizes.
In 1925, the company purchased Montreal-based Scientific Supplies, Ltd. [3] The same year, the company was renamed Fisher Scientific. In 1940, Fisher Scientific acquired the New York supply company Eimer & Amend, which was founded in 1851 by Bernard G. Amend. [2] Aiken Fisher, Chester's oldest son, became president of the company in 1949.
The white van speaker scam is a scam sales technique in which a con artist makes a buyer believe they are getting a good price on home entertainment products. Often a con artist will buy inexpensive, generic speakers [1] and convince potential buyers that they are premium products worth hundreds or thousands of dollars, offering them for sale at a price that the buyer thinks is heavily ...
The Méker burner heating power can be around 3.6 kW using liquefied petroleum gas. [2] Flame temperatures of up to 1,100–1,200 °C (2,000–2,200 °F) are achievable. Compared with a Bunsen burner, the lower part of its tube has more openings with larger total cross-section, admitting more air and facilitating better mixing of air and ...
For example, in order to obtain an accuracy of 1% using a scale with the typical accuracy of 0.2 mg, the sample must contain 20 mg water, which is e.g. 200 mg for a sample with 10% water. For coulometers , the measuring range is from 1–5 ppm to about 5%.
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