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Annex I Units of Measure: Code elements listed by quantities - UNECE

Annex I Units of Measure: Code elements listed by quantities - UNECE

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<strong>Code</strong>s for <strong>Units</strong> <strong>of</strong> <strong>Measure</strong> used in International Trade<br />

<strong>Units</strong> <strong>of</strong> <strong>Measure</strong>: <strong>Code</strong> <strong>elements</strong> <strong>listed</strong> <strong>by</strong> <strong>quantities</strong><br />

Quantity<br />

Level<br />

Cat.<br />

Use<br />

Id.<br />

Name<br />

Conversion factors to SI<br />

units<br />

(1 unit equals)<br />

Represen.<br />

Symbol<br />

Cross<br />

ref.<br />

capacitance 1 farad F 410<br />

frequency<br />

rotational frequency<br />

angular frequency<br />

1S millifarad mF 411<br />

1S micr<strong>of</strong>arad µF 412<br />

1S nan<strong>of</strong>arad nF 413<br />

1S pic<strong>of</strong>arad pF 414<br />

Note: see periodic and<br />

related phenomena<br />

permittivity, 1 farad per metre F/m 416<br />

permittivity <strong>of</strong> vacuum, 1S micr<strong>of</strong>arad per metre µF/m 417<br />

(electric constant) 1S nan<strong>of</strong>arad per metre nF/m 418<br />

1S pic<strong>of</strong>arad per metre pF/m 419<br />

relative permittivity 1 one 1 420<br />

electric susceptibility 1 one 1 421<br />

electric dipole moment 1 coulomb metre C . m 422<br />

current density 1 ampere per square metre A/m² 423<br />

linear electric current<br />

density,<br />

1S<br />

1S<br />

1S<br />

megaampere per square<br />

metre<br />

ampere per square<br />

millimetre<br />

ampere per square<br />

centimetre<br />

MA/m² 424<br />

A/mm² 425<br />

A/cm² 426<br />

1S kiloampere per square metre kA/m² 427<br />

1 ampere per metre A/m 428<br />

lineic electric current 1S kiloampere per metre 1 kA/m kA/m 429<br />

1S ampere per millimetre 1 kA/m A/mm 430<br />

magnetic field strength 1S ampere per centimetre A/cm 431<br />

magnetic flux density, 1 tesla T 432<br />

magnetic induction 1S millitesla mT 433<br />

1S microtesla µT 434<br />

magnetic polarization 1S nanotesla nT 435<br />

magnetic flux 1 weber Wb 436<br />

magnetic vector<br />

potential<br />

1S milliweber mWb 437<br />

1 weber per metre Wb/m 438<br />

1S kiloweber per metre kWb/m 439<br />

1S weber per millimetre Wb/mm 440<br />

self inductance 1 henry H 441<br />

mutual inductance 1S millihenry mH 442<br />

1S microhenry µH 443<br />

permeance 1S nanohenry nH 444<br />

1S picohenry pH 445<br />

Recommendation 20 159

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