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  1. #1
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    R740 Refrigerant



    Hi Guys,

    Hope you can help me.

    Can anyone tell me the purity of R740 Argon refrigerant, I have brought Argon N-6 grade which is 99.999995% pure and is bloody expensive. which by all accounts is pretty pure.

    Does anybody know if R740 is purer than N-6 grade.

    Kind regard's

    Graham



  2. #2
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    Re: R740 Refrigerant

    Argon N-6 is 99.9999 pure.
    They are the same.

  3. #3
    Brian_UK's Avatar
    Brian_UK is offline Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
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    Re: R740 Refrigerant

    The number refers to the purity.

    The Linde booklet shows the different grades if you want it in writing, see the Argon page.

    https://www.google.co.uk/url?sa=t&so...jP__ym5fMtpCwO
    Brian - Newton Abbot, Devon, UK
    Retired March 2015
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  4. #4
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    Re: R740 Refrigerant

    Because I still lay with refrigerant, so I do not know more details about R470. While I personally always use [advert removed] for my home cooling
    Last edited by Brian_UK; 05-02-2018 at 11:44 AM. Reason: Advert removed.

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