Haldane's decompression model is a decompression table for diving at sea level that was proposed in 1908 by the eminent Scottish physiologist, John Scott Haldane (2 May 1860 – 14/15 March 1936), who was famous for intrepid self-experimentation. Haldane experimented on goats and prepared the first recognized decompression table for the British Admiralty in 1908 based on extensive experiments on goats and other animals using a clinical endpoint of symptomatic DCS.

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  • Haldane's decompression model is a decompression table for diving at sea level that was proposed in 1908 by the eminent Scottish physiologist, John Scott Haldane (2 May 1860 – 14/15 March 1936), who was famous for intrepid self-experimentation. Haldane experimented on goats and prepared the first recognized decompression table for the British Admiralty in 1908 based on extensive experiments on goats and other animals using a clinical endpoint of symptomatic DCS. Haldane observed that goats, saturated to depths of 165 feet (50 m) of sea water, did not develop decompression sickness (DCS) if subsequent decompression was limited to half the ambient pressure. Haldane constructed schedules which limited the critical supersaturation ratio to "2", in five hypothetical body tissue compartments characterized by their halftime. Halftime is also termed Half-life when linked to exponential processes such as radioactive decay. Haldane's five compartments (halftimes: 5, 10, 20, 40, 75 minutes) were employed in decompression calculations and staged procedures for fifty years. Previous theories to Haldane worked on "uniform compression", as Paul Bert pointed in 1878 that very slow decompression could avoid the caisson disease, then Hermann von Schrötter defined in 1895 the safe "uniform decompression" rate to be of "one atmosphere per 20 minutes". Haldane in 1907 worked on "staged Decompression" and proved it to be safer than "uniform decompression" and produced his decompression tables on that basis. (en)
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  • Haldane 1911
  • Haldane 1920
  • Hermann von Schrötter.
  • Paul Bert
  • Table I
  • Table II
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  • John Scott Haldane in 1910
  • Paul Bert.
  • J. S. Haldane at his laboratory in Oxford, May 1920. Portrait Collection, Boston Medical Library in the Francis A. Countway Library of Medicine.
  • Decompression table-I in ft and psi. "Stoppages during the ascent of a diver after ordinary limits of time from surface."
  • Hermann von Schrötter. (drawn by Hans von Schrötter . B. Mader).
  • Decompression table-II in ft and psi. "Stoppages during the ascent of a diver after delay beyond the ordinary limits of time from surface."
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  • Haldane's Decompression Tables I and II
  • John Scott Haldane
  • Previous work to John Scott Haldane
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  • Austrian_physiologist_Anton_Hermann_Victor_Thomas_Schrötter.jpg
  • Haldane's_Decompression_table-II_in_ft_and_psi.jpg
  • Haldane's_Decompression_table-I_in_ft_and_psi.jpg
  • Haldane_in_his_laboratory_at_Oxford,_1911.jpg
  • John_Scott_Haldane_1910.jpg
  • Paul_Bert2.jpg
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http://purl.org/linguistics/gold/hypernym
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  • Haldane's decompression model is a decompression table for diving at sea level that was proposed in 1908 by the eminent Scottish physiologist, John Scott Haldane (2 May 1860 – 14/15 March 1936), who was famous for intrepid self-experimentation. Haldane experimented on goats and prepared the first recognized decompression table for the British Admiralty in 1908 based on extensive experiments on goats and other animals using a clinical endpoint of symptomatic DCS. (en)
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  • Haldane's decompression model (en)
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