## Our Weights and Measures: A Practical Treatise on the Standard Weights and Measures in Use in the British EmpireEyre and Spottiswoode, 1897 - Počet stran: 163 |

### Vyhledávání v knize

Výsledky 1-5 z 10

Strana vi

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**دو**Water . Comparisons of Standard Linear Measures . Balances of Precision . PART V. 14. The Metric System ( p . 96 ) . Description of new Standard Metre and Kilogram . Metric Equivalents . New Metric Equivalents . Denominations of ... Strana 62

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**دو**99 1 lb. and under . 8 ins . 1 oz . 6 99 In these beams the depth near to the centre should be about one - eighth of the length . This form of beam has open and continuous bearings , and is of such dimensions as to secure during the ... Strana 75

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**دو**" " " " RESISTANCE MEASURING INSTRUMENTS . Standard Ohm . Sub - standards up to 100,000 ohms , and below 1 ohm to Too ohm . The expression " meter " includes a large number of instruments which formerly were only regarded as ... Strana 86

... of a cubic foot of air , when the atmospheric pressure is B , expressed in inches , and the temperature t , in degrees Fahrenheit , may be taken 86 OUR WEIGHTS AND MEASURES : Gas Measuring Standards Weighing of

... of a cubic foot of air , when the atmospheric pressure is B , expressed in inches , and the temperature t , in degrees Fahrenheit , may be taken 86 OUR WEIGHTS AND MEASURES : Gas Measuring Standards Weighing of

**دو**Water. Strana 93

... du Bureau International des Poids et Mesures , " Tome III . THIESEN , Dr. M.- " Études sur la Balance , Travaux et ...

... du Bureau International des Poids et Mesures , " Tome III . THIESEN , Dr. M.- " Études sur la Balance , Travaux et ...

**دو**No. 7 . 10 0.0002 " " " " " " In accurate weighings it is desirable to be able to SCIENTIFIC MEASURING ...### Další vydání - Zobrazit všechny

Our Weights and Measures: A Practical Treatise on the Standard Weights and ... H. J Chaney Náhled není k dispozici. - 2017 |

Our Weights and Measures: A Practical Treatise on the Standard Weights and ... Henry James Chaney Náhled není k dispozici. - 2008 |

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12 ounces acres ancient Apothecaries appears Assay avoirdupois pound AVOIRDUPOIS WEIGHT balance beam Board of Trade brass bushel carat chain coin contained copies corn Counter Machine cubic foot cubic inches decimal decimetre denominations deposited derived diameter distilled water drachm Edinburgh English Exchequer Fahrenheit feet firlot fluid ounces gauge gill gold grains grams hydrometer Imperial Standards Imperial system Imperial Weights inspection of weights inspectors Ireland Irish Jersey pound Jewel Tower kilogram litre London maund Measures Act measures of capacity meter metre metric system metric weights mile Millilitre millimetre mutchkin origin pennyweights pint Pyx Chapel quart reference regulated Report Roman Royal sale of coal scale Scotland seer square stamped standard weights Standard Yard Standards Office Statute Survey system of weights Trade standards troy pound troy weights United verified Vict weighing instruments weighing machines weights and measures Winchester wine gallon دو

### Oblíbené pasáže

Strana 76 - That the standard of electrical resistance should be denominated the ohm, and should have the value 1,000,000,000 in terms of the centimetre and second. (4) " That the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14-4521 grammes in mass, of a constant cross sectional area, and of a length of 106'3 centimetres, may be adopted as one ohm.

Strana 77 - Ampere, which is one-tenth of the unit of current of the CGS system of electromagnetic units and which is represented sufficiently well for practical use by the unvarying current which, when passed through a solution of nitrate of silver in water, in accordance with a certain specification, deposits silver at the rate of 0.001118 of a gramme per second.

Strana 76 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 10" units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grams in mass, of a constant cross-sectional area and of the length of 106.3 centimetres.

Strana 77 - That an alternating current of one ampere shall mean a current such that the square root of the time average of the square of its strength at each instant in amperes is unity. 12. That instruments constructed on the principle of the balance, in which by the proper disposition of the conductors, forces of attraction and repulsion are produced, which depend upon the amount of current passing...

Strana 76 - That it is desirable that new denominations of standards for the measurement of electricity should be made and approved by Her Majesty in Council as Board of Trade standards. 2. That the magnitudes of these standards should be determined on the electro-magnetic system of measurement with reference to the centimetre as unit of length, the gramme as unit of mass, and the second as unit of time, and that by the terms centimetre and gramme are meant the standards of those denominations deposited with...

Strana 50 - Every person who uses or has in his possession for use for trade a weight or measure which is not of the denomination of some Board of Trade standard, shall be liable to a fine not exceeding five pounds, or in the case of a second offence ten pounds, and the weight or measure shall be liable to be forfeited.

Strana 55 - trade description " means any description, statement, or other indication, direct or indirect, (a.) as to the number, quantity, measure, gauge, or weight of any goods, or...

Strana 21 - Pendulum vibrating Seconds of Mean Time in the Latitude of London in a Vacuum at the Level of the Sea...

Strana 77 - ... (14) That the electrical pressure at a temperature of 15 centigrade between the poles or electrodes of the voltaic cell known as Clark's cell, prepared in accordance with the specification attached to this report, may be taken as not differing from a pressure of 1*434 volts, by more than one part in 1000.

Strana 77 - ... 15. That an alternating pressure of one volt shall mean a pressure such that the square root of the time average of the square of its value at each instant in volts is unity.