1078 Каталог FACOM 2013 Профессиональный ручной инструмент и оборудование Стр.1052

Каталог FACOM 2013 Инструмент Оборудование Стр. 1052 1078 ENG Lab2u

CONVERSION OF MEASURING UNITS The table below gives the SI unit conversion factors of a certain number of units that do not belong to the SI system. Some of these are still in use in France or abroad in general or specialised applications others belong to old systems of measurement that are now obsolete. Units that are specific to the United States or the United Kingdom are indicated respectively by US or UK in brackets. II Symbols and abbreviations UNITS SYMBOL OR ABBREVIATION SI UNIT CONVERSION FACTOR PHYSICAL QUANTITY COMMENT Ampere-hour Ah 36 x 103c (exact) Quantity of electricity Used for storage batteries Angstrom A 10"1m (exact) Length Wavelength atomic distance Bar bar 105Pa (exact) Pressure Fluids Barrel (US) bbl 0158 987 3 m3 volume 1 barrel (US) 42 gallons (US). Calorie I.T cal I.T 4186 8 J (exact) Energy Quantity of heat Candela cd Basic SI unit Luminous intensity Cheval vapeur (horsepower) ch 735498 75 W (exact) Power 1ch 75 kgm s (exact). Degree 1.745 329 x 102 rad (2 360 rad) Angle Degree Celsius C Tk 0C+27315 (exact) Temperature The origin of the Celsius scale is set by convention at 273.15 K. Degree Fahrenheit F Tk 5 9 (0F+45967) (exact) Temperature 0C 5 9 (0F-32) (exact) Electronvolt eV 1602 177 33 x 10-19 J Energy Atomic and nuclear physics Farad F Derived SI unit 1F 1C V Electric capacitance Faraday 9648 70 x 10-4 C Quantity of electricity Based on carbon 12. Fluid ounce (UK) fl oz (UK) 2841 30 x 10-5 m3 volume Fluid ounce (US) fl oz (US) 2957 35 x 10"5 m3 volume Liquids Foot ft 3048 cm (exact) Length The symbol is also used Gallon (UK) gal (UK) 4546 09 x 103 m3 volume Gallon (US) gal (US) 3785 41 x 103 m3 volume Liquids Hertz Hz Derived SI unit 1Hz 1s"1 Frequency Horsepower (UK) hp 745700 W Power The US value of horse power varies according to the field. Inch in 254 cm (exact) Length The symbol is also used. Joule J Derived SI unit 1J 1N.m Energy Work quantity of heat Kelvin K Basic SI unit Temperature Thermodynamics Kilogram-meter kgm 9806 65 J (exact) Work Kilogram-force kgf 9806 65 N (exact) Force Kilowatt-hour kWh 36 x 10-6 J (exact) Energy Electrical energy consumption Liquid pint (US) liq pt (US) 4731 76 x 10-4 m3 volume Liquids Liquid quart (US) liq qt 9463 529 x 10-4 m3 volume Liquids Litre l L 10-3 m3 (exact) volume C.G.P.M. 1964. Lux lx Derived SI unit 1lx 1lm m2 Illumination Micron V 10-6 m (exact) Length Replaced by micrometer Mile mile 1609 344 x 103 m (exact) Length Also called statute mile International nautical mile 1852 x 103 m (exact) Length Sea and air navigation Millimetre of mercury (conventional) mmHg 133322 4 Pa Pressure Equal to 13..595 1 mmH2O. (exact). Nautical mile (UK) 1852 x 103 m (exact) Length Since 1970 the UK nautical mile is equal to the international nautical mile. Newton N Derived SI unit 1 N 1 kg.m.s-2 Force Ohm Q Derived SI unit 1 Q 1 V A Electrical resistance Ounce oz 28349 5 g Mass 16 oz 1 lb Pascal Pa Derived SI unit 1 Pa 1 N m2 Pressure stress Pound lb 0453 592 37 kg (exact) Mass Pound-force lbf 4448 22 N Force Psi psi 6894 757 x 103 Pa Pressure Abbreviation of poundforce per square inch. Radian rad Derived SI unit 1 m m Angle (plane) The symbol rd has also been used in France Second s Basic SI unit Time Torr torr 133322 4 Pa Pressure 1 760 normal atmosphere (exact). Volt V Derived SI unit 1 V 1 W A Electric potential Voltampere VA 1 W (exact) Apparent power Electricity. Watt W Derived SI unit 1 W 1 J s Power Watthour Wh 3600 J (exact) Energy Electrical energy consumption Weber Wb Derived SI unit 1 Wb 1 V.s Magnetic induction Yard yd 0914 4 m (exact) Length 1052 j Facom