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°F·h·ft²/BtuITv3rev 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.

degree Fahrenheit hour square foot per British thermal unit (international table)

0112/2///62720#UAA043

unit of the thermal insulance according to the Imperial system of units

unit

All properties20#

IRDI
0112/2///62720#UAA043degree Fahrenheit hour square foot per British thermal unit (international table)
Version
3
Revision
1
Preferred name
degree Fahrenheit hour square foot per British thermal unit (international table)
Short name
°F·h·ft²/BtuIT
Definition
unit of the thermal insulance according to the Imperial system of units
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
kg⁻¹ s³ K¹
Unit in text
degree Fahrenheit hour square foot per British thermal unit (international table)
Unit in SGML/XML
Structured markup (math)(409 chars)
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> <!-- UAA043 --> <mrow> <mfrac> <mrow> <mi mathvariant="normal">&#176;F</mi> <mo>&#xB7;</mo> <mi mathvariant="normal">h</mi> <mo>&#xB7;</mo> <msup> <mi mathvariant="normal">ft</mi> <mn>2</mn> </msup> </mrow> <msub> <mrow> <mi mathvariant="normal">Btu</mi> </mrow> <mrow> <mi mathvariant="normal">IT</mi> </mrow> </msub> </mfrac> </mrow> </math>
UN/ECE code
J22
Unit conversion
Structured markup (UnitsML)(571 chars)
<UnitsML xmlns="https://schema.unitsml.org/unitsml/1.0"><Unit xml:id="0112/2///62720#UAA746"><Conversions><Float64ConversionFrom xml:id="UAA746_from_UAA043" initialUnit="0112/2///62720#UAA043" multiplicand="0.1761101590816032513913953382" divisor="1" /></Conversions></Unit><Unit xml:id="https://si-digital-framework.org/SI/units/second3.kelvin.kilogram-1"><Conversions><Float64ConversionFrom xml:id="SI::second3.kelvin.kilogram-1_from_UAA043" initialUnit="0112/2///62720#UAA043" multiplicand="0.1761101590816032513913953382" divisor="1" /></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