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Thread: How to check the purity of Medical Oxygen?

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    How to check the purity of Medical Oxygen?

    Can you share the standards or metric to check the purity of Medical Oxygen?

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    Senior Member wdk450's Avatar
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    Re: How to check the purity of Medical Oxygen?

    Take the oxygen to your local hospital. Clinical Engineering or Biomedical Technology departments are responsible for seeing that ALL hospital equipment is properly calibrated, and should have access to O2 monitors. Respiratory therapy departments use O2 monitors a lot. If you are in a very rural area your paramedics should have an O2 meter. University chemistry/biology departments should have O2 meters, too.

    Final local calibration of these meters can be done with a Mass Spectrometer. Anesthesia gas monitors use a Mass Spec. Usually a 2 point calibration test with pure gas without oxygen for 0%, and room air for 21%. Known calibration gasses with specified % chemical compositions are also used.
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    Re: How to check the purity of Medical Oxygen?

    Thanks for sharing your valuable reply.

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    Re: How to check the purity of Medical Oxygen?

    All I know about medical oxygen is According to Oxygen Concentrator 5LPM - Ultra Light it generate Oxygen at purity for 93% + / - 3% at 5 Liter per minute.






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    Re: How to check the purity of Medical Oxygen?

    Medical oxygen must contain at least 99.5% pure oxygen in volume; it must be odourless, contain acetylene, oils, carbon monoxide, gaseous acids and bases, moisture and mechanical impurities.

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    Senior Member wdk450's Avatar
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    Re: How to check the purity of Medical Oxygen?

    Quote Originally Posted by souza13alex View Post
    medical oxygen must contain at least 99.5% pure oxygen in volume; it must be odourless, contain acetylene, oils, carbon monoxide, gaseous acids and bases, moisture and mechanical impurities.
    i think you left out a not: As in not​ contain acetylene, etc.
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    Re: How to check the purity of Medical Oxygen?

    Bill - I nuked this user today. Spammy posts and signup IP resolved to Ukraine.
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    Re: How to check the purity of Medical Oxygen?

    When I used to get cylinders filled for SCUBA purposes the "medical grade" cylinders were all in the same line with the welding gas cylinders. Only difference was med grade had chrome platted brass valves.
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