HP TextEngineer Technical Writing Guide Manuel d'utilisateur télécharger pdf (Page 19)

Company Writer's Guide

[For Illustration Only] B-4

Symbols for Units in General Use

Unit Symbol Notes

ampere A SI unit of electric current.

ampere (turn) A SI unit of magnetomotive force.

ampere-hour Ah Also A•h

ampere per meter A/m SI unit of magnetic field strength.

angstrom

1 Δ = 10

-10

m (deprecated, see ANSI Z210.1-1976)

atmosphere, standard atm

1 atm = 101 325 Pa (deprecated, see ANSI Z210.1-

1976)

atmosphere, technical at

1 at = 1 kgf/cm

(deprecated,

see ANSI Z210.1-1976)

atomic mass unit (unified) u

The (unified) atomic mass unit is defined as one

twelfth of the mass of an atom of the

C nuclide.

Use of the old atomic mass (amu), defined by

reference to oxygen, is deprecated.

atto a SI prefix for 10

-18

attoampere aA

bar bar

1 bar = 100 kPa. Use of the bar is strongly

discouraged (see ANSI Z210.1-1976), except for

limited use in meteorology.

barn b 1 b = 10

-28

barrel bbl 1 bbl = 42 gal

= 158.99 L

barrel per day bbl/d

This is the standard barrel used for petroleum,

etc. A different standard barrel is used for fruits,

vegetables, and dry commodities.

baud Bd

In telecommunications, a unit of signaling speed

equal to one element per second. The signaling

speed in bauds is equal to the reciprocal of the

signal element length in seconds.

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 31 32

Commentaires sur ces manuels

Pas de commentaire

HP TextEngineer Technical Writing Guide Manuel d'utilisateur Page 19

Commentaires sur ces manuels

Produits connexes et manuels pour Non HP TextEngineer Technical Writing Guide