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Range of samples for gage R&R?

Discussion in 'Gage R&R and MSA - Measurement Systems Analysis' started by MikeS, Aug 13, 2018.

  1. MikeS

    MikeS New Member

    Aug 13, 2018
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    We are planning on doing a Gage R&R on Din cup 4 viscosity measurement. We usually use the method for our different products that vary in range from approx 30sec to 120sec. The specification range is normally +- 5, e.g 40-50 sec for one of our products.
    This product can come in at 60 or maybe 80 from production but is adjusted within spec (40-50 in this case).
    We plan to measure 5 different samples.
    In what range should we select samples? How will it affect the result if we pick samples in the range of 40-50 compared to 35-55?
  2. Miner

    Miner Moderator Staff Member

    Jul 30, 2015
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    Greater Milwaukee USA
    See my Resources post for Gage R&R under Part Selection. First determine how the gage will be used. Inspection only? SPC only? Both? This will drive how the samples must be selected and how it will affect the result.
    MikeS and Andy Nichols like this.