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February 1999

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Subject:
Re: Cpk Question
From:
Adil Nasir <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 24 Jan 1980 14:11:54 -0800
Content-Type:
text/plain
Parts/Attachments:
text/plain (31 lines) 
Hi:

Process capability ratio= (USL-LSL)/ 6 sigma
where USL= upper specification limit
          LSL= lower specification limit
          sigma= process standard deviation

Process capability refers to the uniformity of the process. ( measure of the
uniformity
of the output).

Basically the process capability ratio is a measure of the ability of the
process to
manufacture product that meets specifications.

Adil Nasir
Process Engineer
Pycon Inc.

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