Munurin millum rættingarnar hjá "Millumtjóða eindarskipanin"
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|style="background:#F5F5F5" rowspan=3|'''[[sekund]]'''
|'''m<span style="font-size:88%">iðøld</span style>'''||{{sfrac|86 400}} av einum døgni.
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|'''1956'''||<!--{{sfrac|{{val|31556925.9747}}}} of the [[tropical year]] for 1900 January 0 at 12 hours [[ephemeris time]]. -->
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|'''1881'''||<!-- A tenth of the electromagnetic CGS unit of current. The [CGS] electromagnetic unit of current is that current, flowing in an arc 1 cm long of a circle 1 cm in radius creates a field of one [[oersted]] at the centre. -->
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|'''1946'''||style="line-height:
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|style="background:#F5F5F5" rowspan=3|'''[[kelvin]]'''
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|style="background:#F5F5F5" rowspan=2|'''[[candela]]'''
|'''1946'''||luminansurin frá einum likami við smeltitemperaturin hjá platin er 60 cd/cm<sup>2</sup>.
<!-- The value of the new candle is such that the brightness of the full radiator at the temperature of solidification of [[platinum]] is 60 new candles per square centimetre. -->
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|'''1979'''||style="line-height:5pt"|ljósstyrkin í ein rætning frá eini ljóskeldu, sum sendir út monokromatiskt ljós við frekvensinum 540 THz og strálingsstyrkini {{sfrac|683}} W/sr í henda rætningin.<br>
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