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s⁻¹v3rev 12026-03-17IEC 80000-13:2008 \ ISO 80000-12:2009 \ ISO 80000-3:2006 \ ISO 80000-7:2008 \ ISO 80000-8:2007

reciprocal second

0112/2///62720#UAA973

reciprocal of the SI base unit second

unit

All properties20#

Version
3
Revision
1
Preferred name
reciprocal second
Short name
s⁻¹
Definition
reciprocal of the SI base unit second
Definition source
IEC 80000-13:2008 \ ISO 80000-12:2009 \ ISO 80000-3:2006 \ ISO 80000-7:2008 \ ISO 80000-8:2007
Unit structure
s⁻¹
Unit in text
reciprocal second
Unit in SGML/XML
Structured markup (math)(149 chars)
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> <!-- UAA973 --> <msup> <mi mathvariant="normal">s</mi> <mn>-1 </mn> </msup> </math>
UN/ECE code
C97
Unit conversion
Structured markup (UnitsML)(505 chars)
<UnitsML xmlns="https://schema.unitsml.org/unitsml/1.0"><Unit xml:id="0112/2///62720#UAA973"><Conversions><Float64ConversionFrom xml:id="UAA973_from_UAA973" initialUnit="0112/2///62720#UAA973" multiplicand="1" divisor="1" exact="true" /></Conversions></Unit><Unit xml:id="https://si-digital-framework.org/SI/units/second-1"><Conversions><Float64ConversionFrom xml:id="SI::second-1_from_UAA973" initialUnit="0112/2///62720#UAA973" multiplicand="1" divisor="1" exact="true" /></Conversions></Unit></UnitsML>
Responsible committee
IEC/SC 3D
Publisher
IEC
Published in
IEC 62720
Status level
Standard
Version release date
2026-03-17
Revision release date
2026-03-17
Version initiation date
2026-03-17
Change request ID
C00192