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Uncertainty vs collaborative testing

Discussion in 'ISO 17025 - Calibration and Test Laboratories' started by John C. Abnet, Oct 18, 2018.

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  1. John C. Abnet

    John C. Abnet Well-Known Member

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    Good day all;
    In my past experiences with ISO 17025 accredited laboratories, we identified and documented measurement uncertainty for all measurements except those which participated in a collaborative lab program. My memory fails me as to why we were "allowed" to do this. Any thoughts?
     
    John C. Abnet, Oct 18, 2018
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  2. Andy Nichols

    Andy Nichols Moderator Staff Member

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    Are you thinking "round robin" type standards, John?
     
    Andy Nichols, Oct 18, 2018
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  3. John C. Abnet

    John C. Abnet Well-Known Member

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    Yep, like CTS, which provides a scatter graph result of where a given lab’s result fall compared to the other participants.
     
    John C. Abnet, Oct 19, 2018
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  4. Andy Nichols

    Andy Nichols Moderator Staff Member

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    Then the uncertainty should be pretty much the same in that case? Same artifact, method, conditions etc.
     
    Andy Nichols, Oct 19, 2018
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  5. John C. Abnet

    John C. Abnet Well-Known Member

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    One would think...
     
    John C. Abnet, Oct 19, 2018
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