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* Haldane introduced decompression tables based on five tissue compartments with half times of 5, 10, 20, 40 and 75 minutes.
* The [[US Navy]] refined Haldane's tables and introduced a model with nine tissues. They also introduced calculations for half-times starting from 5 minutes and reaching up to 240 minutes.
* [[Albert A. Bühlmann|Professor A AAlbert Bühlmann]] established [[Bühlmann decompression algorithm|decompression tables]] for diving in high altitude in mountain lakes. His model is based on Haldanian principles but his ZHL-16 tables considered 16 tissues with half-times up to 635 minutes and introduced factors that attempted to model the variation of supersaturation limit with depth.
==Haldane's related work and research==
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Haldane had many other related researches:
* He has established the Established '''The Journal of Hygiene'''<ref>[https://www.ncbi.nlm.nih.gov/pmc/journals/336/ Archive of "The Journal of Hygiene".]</ref>
* Haldane manufacturedManufactured a decompression device to facilitate assistance to deep divers.
* Also, he establishedEstablished decompression procedures for scuba diving to 200 feet or 65 meters for the Royal Navy in 1907, after many experiments animal. experiments
* TheDescribed the '''[[Haldane effect]]''' is, a property of hemoglobin first described by John Scott Haldane.
* Haldane proposedProposed a formula to determine the coefficients of saturation of different tissues in the body, his Equationequation is based on [[Henry's law]]:
::'''TN2 = To + (Tf – To) (1–0.5^{(t/to)})'''
::where,
:::T: Tensiontension (pressure) of gas in tissues,
:::To: Initialinitial Tension,tension
:::TN2: Currentcurrent Tension,tension
:::Tf: Finalfinal Tension,tension
:::to: Chamberchamber Period,period
:::t: Currentcurrent Timetime
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==Contradicting work==
Although Haldane's model remains the basis for [[Decompression practice|modern decompression tables]], Haldane's first decompression tables proved to be far from ideal. Haldane's Equationequation is used by many dive tables and dive computers today, even though, a growing number of decompression models contradict its assumptions such as the
::* Asymmetry of saturation phenomenasphenomena of inert Gasesgases (Uptakeuptake and Eliminationelimination),
::* Desaturation according to Hempleman's Memorandummemorandum and those of Thalmann , taking into account of circulating bubbles, VPM, [[Reduced gradient bubble model|Reduced gradient bubble model (RGBM)]], ...)
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== External links ==
* [http://www.ecy.wa.gov/programs/wq/tmdl/deschutes/technical_reports/deschutes_tmdl_qr6.pdf Chris '''Hempleman's Memorandum''', October 29, 2004]
* [http://www.us.elsevierhealth.com/media/us/samplechapters/9780702025716/9780702025716.pdf '''Decompression Practice''', Robert W Hamilton and Ed Thalmann]
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