iSixSigma

%Tolerance

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  • #39100

    ROSS
    Member

    Hi all,
      Pls see below R%R analysis, out tolerance is 6. So, we get %tolerance=35%, it is can not accept, but all our measurement are in our specification(17~23), and the data is random collected. Then what is the %tolerance meaning? Tks!

    Part
    Oper
    Measure

    1
    1
    20.27

    2
    1
    18.82

    3
    1
    21.9

    4
    1
    17.97

    5
    1
    18.49

    6
    1
    17.83

    1
    2
    19.93

    2
    2
    19.27

    3
    2
    21.44

    4
    2
    18.84

    5
    2
    17.86

    6
    2
    18.23

    1
    3
    19.46

    2
    3
    18.85

    3
    3
    22.26

    4
    3
    18.39

    5
    3
    17.92

    6
    3
    17.81

    1
    1
    19.89

    2
    1
    18.86

    3
    1
    21.1

    4
    1
    18.38

    5
    1
    17.78

    6
    1
    18.47

    1
    2
    19.18

    2
    2
    18.66

    3
    2
    22.34

    4
    2
    17.56

    5
    2
    17.78

    6
    2
    18.55

    1
    3
    19.81

    2
    3
    19.89

    3
    3
    22.26

    4
    3
    18.14

    5
    3
    17.8

    6
    3
    18.56

    0
    #118185

    AndyP
    Participant

    This tells you the % of your tolerance taken up by measurement error.
    Below 30% means the gauge is OK to accept or reject the product.

    0
    #118186

    ROSS
    Member

    AndyP   Tks! But my question is my %contribution is very low, but %tolerance is very high. and all my data is actually in my specification.
    BR!
    Tony

    0
    #118189

    Anonymous
    Guest

    Tony,
    We’ve recently sent an article for publication on this very subject. We wrote it because it seems to cause much confusion. Unfortuantely, I’ve handed the copyright over for a period of two months, so I can’t send you a copy. But you can contact me through my website I’ll give you some pointers. Just search Google for Andy Urquhart.
    Regards,
    Andy

    0
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