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I'm fairly new to the GR&R process. I've ran two so far with not great results. I've ran a Digital Caliper and a Viscometer. My question is about the viscometer
We don't have many lots of product to choose from, so I figured if I can't have 10 samples and 3 trials I would do 3 samples and 10 trials.
Our product is solvent based, has a tolerance of +/- 30 mPa and it seems to change over the 20 minutes it takes to measure it, not much 2-3 units, but still changes.
I plug it into our GR&R spread sheet and I get numbers in the 40-50%.
I do not understand how the statistical date is working. I would think a 5% change could still be controlled with us knowing that it will change slightly over time.
Plus all the readings were well within Tolerance.
Is there a trick in running GR&R on a product that isn't 100% stable?
Thank you in advance.
We don't have many lots of product to choose from, so I figured if I can't have 10 samples and 3 trials I would do 3 samples and 10 trials.
Our product is solvent based, has a tolerance of +/- 30 mPa and it seems to change over the 20 minutes it takes to measure it, not much 2-3 units, but still changes.
I plug it into our GR&R spread sheet and I get numbers in the 40-50%.
I do not understand how the statistical date is working. I would think a 5% change could still be controlled with us knowing that it will change slightly over time.
Plus all the readings were well within Tolerance.
Is there a trick in running GR&R on a product that isn't 100% stable?
Thank you in advance.