Determining Sample Size and Method

Mike S.

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I wonder if there is something new and novel here or if ISO just thought ASQ was making too much money from Squeglia's book?
 

rmyjq

Starting to get Involved
For ISO 28593: 2017, just a simply calculation, based on consistent quality, input the data in yellow unit.
 

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  • ISO C=0 Sample size determination.xlsx
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Vetty007

Involved In Discussions
For ISO 28593: 2017, just a simply calculation, based on consistent quality, input the data in yellow unit.

Thank you for sharing this sheet and its very interesting - Before spending money for ISO 28539 - Could you give me your Opinion, if it will provide enought information to define such a testing amount as can be calculated from your document? According to your excel document the sample size is very nice, esp. if its just a very simple class I device produced since over 15 years but unluckily without a proper sampling size ( OOQ, PPQ was done with mostly Cpk at minimum of 2, most often over 3). Thus a huge sample size is disliked and I would be happy, to proof/cite that such a low sample size as given by you, is possible. If this is comprehensively possible with ISO 28593 would be great and I would be happy, if you could confirm that it includes enought information for this. Thank you very much für your feedback in advance :)
 
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