## Circular of the Bureau of Standards, Issue 570U.S. Government Printing Office, 1956 |

### From inside the book

Results 1-5 of 6

Page 9

...

...

**milligram**of mercury of atomic weight 198. The lamp is excited in a radiofrequency field ( left foreground ) . The interference pattern portrayed in the background enables researchers to make accurate length measurements . The NBS ... Page 13

...

...

**milligrams**per cubic centimeter and temperature of 20 ° C. The corrections to be used with precise analytical weights are ordinarily given only in terms of apparent mass against normal brass standards . c . Tests of Standards of Mass ... Page 21

...

...

**milligrams**. 1 gram ( g ) = 1 000**milligrams**. 1 dekagram ( dkg ) . 1 hectogram ( hg ) = 100 grams . = 1 kilogram ( kg ) = 1 000 grams . = 1 metric ton ( t ) . - The liter is defined as the volume occupied , under standard conditions ... Page 24

...

...

**milligram**= 0.015 432 356 1 gram = 15.432 356 1 kilogram = 15 432.356 1.139 323 2.5 18.229 17 20 240 291.6667 0.000 643 014 8 0.643 014 85 643.014 85 1 0.455 729 2 2.194 286 1 0.0625 0.137 142 9 16 7.291 67 1 17.554 28 210.6514 256 8 96 ... Page 25

...

...

**Milligrams**Grams Kilograms Units 0.000 173 611 1 0.003 472 222 0.004 166 667 0.004 747 178 8 0.010 416 667 0.911 458 ...**milligram**= 1 gram = 1 kilogram THAN AVOIRDUPOIS OUNCES Long tons Kilograms Metric tons 0.000 027 901 79 0.000 446 ...### Common terms and phrases

000 cubic centimeters apoth apothecaries apothecaries weight avdp avoirdupois pound Britain British Imperial Bureau of Standards Bureau of Weights bushel calibration Circular cubic centimeter cubic decimeter cubic feet cubic foot cubic inches cubic meter decimal defined dekaliter dry quarts equivalent fluid drams fluid ounces fluid scruple grains grams gross or long hectare hundredweight Imperial gallon inch exactly International Bureau length and mass liquid pint liquid quarts liter long ton mass standard metric system milligrams milliliters millimeters National Bureau number system pint or quart primary standard Prototype Kilogram short ton square centimeter square inch square meter square yard standards of capacity standards of length standards of mass struck measure subdivisions system of weights tonnage troy pound U. S. fluid ounce U. S. gallon U. S. Government Printing unit of weight United States Prototype units and standards Units and Systems UNITS OF CAPACITY volume weights and measures

### Popular passages

Page 18 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30£ square yards = 1 square rod (sq.

Page 18 - Cubic Measure 1728 cubic inches (cu. in.) =1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...

Page 29 - Used in assaying. The assay ton bears the same relation to the milligram that a ton of 2,000 pounds avoirdupois bears to the ounce troy; hence the weight in milligrams of precious metal obtained from one assay ton of ore gives directly the number of troy ounces to the net ton.

Page 4 - The essential features of the system were embodied in a report made to the French National Assembly by the Academy of Sciences in 1791. A number of other nations were invited to cooperate with France in establishing the new system, and Holland, Denmark...

Page 12 - When an equal-arm balance is used to compare an object with standards of mass ("weights"), the effects of variations in the acceleration of gravity are self-eliminating and need not be taken into account, but the apparent mass of the object is slightly different from the true mass because of the buoyant effects of the surrounding air. Mass can then be computed from apparent mass by applying a correction for air buoyancy. When a spring balance is used, an additional correction accounting for the local...

Page 20 - Dry Measure. — 2 pints = 1 quart; 8 quarts = 1 peck; 4 pecks = 1 bushel.

Page 14 - The mean solar day is divided into 24 hours, each hour into 60 minutes, and each minute into 60 seconds.

Page 4 - The liter is defined as the volume occupied, under standard conditions, by a quantity of pure water having a mass of 1 kilogram. This volume is very nearly equal to 1 000 cubic centimeters or 1 cubic decimeter; the actual metric equivalent iĦ.

Page 20 - The meter bars, however, continue in use as a standard for most types of measurements. In the metric system, designations of multiples and subdivisions of any unit may be arrived at by combining with the name of the unit the prefixes deka, hecto, and kilo, meaning, respectively, 10, 100, and 1,000, and deci, centi, and mill!, meaning, respectively, one-tenth, onehundredth, and one-thousandth.