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Bqv2rev 12026-03-17NIST Guide for the Use of the International System of Units (SI). NIST Special Publication 811, 2008 Edition. NIST (National Institute of Standards and Technology), Gaithersburg, MD.

becquerel

0112/2///62720#UAA111

SI derived unit with special name, for which the following relation applies: 1 Bq = 1 s⁻¹

unit

All properties20#

Version
2
Revision
1
Preferred name
becquerel
Short name
Bq
Definition
SI derived unit with special name, for which the following relation applies: 1 Bq = 1 s⁻¹
Definition source

NIST Guide for the Use of the International System of Units (SI). NIST Special Publication 811, 2008 Edition. NIST (National Institute of Standards and Technology), Gaithersburg, MD.

Unit structure
s⁻¹
Unit in text
becquerel
Unit in SGML/XML
Structured markup (math)(152 chars)
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> <!-- UAA111 --> <mrow> <mrow> <mi mathvariant="normal">Bq</mi> </mrow> </mrow> </math>
UN/ECE code
BQL
Unit conversion
Structured markup (UnitsML)(505 chars)
<UnitsML xmlns="https://schema.unitsml.org/unitsml/1.0"><Unit xml:id="0112/2///62720#UAA111"><Conversions><Float64ConversionFrom xml:id="UAA111_from_UAA111" initialUnit="0112/2///62720#UAA111" 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_UAA111" initialUnit="0112/2///62720#UAA111" 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