Unit: degree Fahrenheit second per British thermal unit (th)

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Identifier: UN1044
Name: degree Fahrenheit second per British thermal unit (th)
Symbol: °F.s.Btu_{th}-1
Reference: https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8#D