This is a list of ASTM International standards.Standard designations usually consist of a letter prefix and a sequentially assigned number. This may optionally be followed by a dash and the last two digits of the year in which the standard was adopted.
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Incorporation of General Industry Safety and Health ...
Jun 30, 1993· (xvii) "Velocity pressure (vp)." The kinetic pressure in the direction of flow necessary to cause a fluid at rest to flow at a given velocity. It is usually expressed in inches of water gauge. (xviii) "Vertical spindle disc grinder." A grinding machine having a vertical, rotatable power-driven spindle carrying a horizontal abrasive disc wheel.
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5. Heat exchangers made of or protected by "materials resistant to corrosion by UF6", and designed for a leakage pressure rate of less than 10 Pa per hour under a pressure differential of 100 kPa; 6. Bellows-sealed valves, manual or automated, shut-off or control, made of or protected by "materials resistant to corrosion by UF6"; b
Employment of minors under 18 years of age on power-driven food-chopping, meat-grinding, slicing or processing machines is prohibited, except for apprentices, student learners and graduates of an approved vocational, technical or industrial education curriculum which prepared them for employment in the specific occupation.
Heading 6804: Millstones, grindstones, grinding wheels and the like, without frameworks, for grinding, sharpening, polishing, trueing or cutting, hand sharpening or polishing stones, and parts thereof, of natural stone, of agglomerated natural or artificial abrasi
This is a list of prices of chemical elements.Listed here are mainly average market prices for bulk trade of commodities. Data on elements'' abundance in Earth''s crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume.