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Author Topic:   Standards
Dawn
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Posts: 245
From:St. Marys, PA
Registered: Sep 98

posted 29 July 1999 05:08 PM     Click Here to See the Profile for Dawn   Click Here to Email Dawn     Edit/Delete Message   Reply w/Quote
I am looking for info on standards stating what makes for a valid sampling plan. Does ANSI have this, and if so can you tell me how to get it?
Thanks!

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Lassitude
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posted 30 July 1999 05:53 AM     Click Here to See the Profile for Lassitude   Click Here to Email Lassitude     Edit/Delete Message   Reply w/Quote
I don't know about any such ANSI standard. Maybe you should post a copy of this in the Statistics forum. Sorry - can't help you.

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Roger Eastin
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From:Greenville, SC
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posted 30 July 1999 07:53 AM     Click Here to See the Profile for Roger Eastin   Click Here to Email Roger Eastin     Edit/Delete Message   Reply w/Quote
There are several sampling "standards" that you can get. I guess it depends on what you are looking for. MIL-STD-105 E was a standard for years (I don't know if it has been superseded or not). If this is still available, ANSI would have it. You can check its availability at //global.ihs.com. At any rate, ASQ has several publications that will give you valid sampling plans. What is your application?

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Dawn
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From:St. Marys, PA
Registered: Sep 98

posted 01 August 1999 09:17 AM     Click Here to See the Profile for Dawn   Click Here to Email Dawn     Edit/Delete Message   Reply w/Quote
I need to prove to a QS auditor that a 3 pc. check is a statistcally valid sampling plan. I also need to prove to him that a six pierce final for any amount of pieces is a valid sampling plan. I'm not sure I can do this. He told me to get the standard from Ansi. They have it all figured out for you. I can't seem to find anything. Thanks!!!

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TheOtherMe
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Posts: 64
From:West Chester, OH USA
Registered: Jul 1999

posted 01 August 1999 09:42 AM     Click Here to See the Profile for TheOtherMe   Click Here to Email TheOtherMe     Edit/Delete Message   Reply w/Quote
I'm sure others will have some direct stuff, but here are some threads on sampling:

There is https://elsmar.com/ubb/Forum27/HTML/000008.html and there is https://elsmar.com/ubb/Forum10/HTML/000002.html and there is https://elsmar.com/ubb/Forum10/HTML/000006.html and there is https://elsmar.com/ubb/Forum10/HTML/000009.html

This a 'meaty' one: https://elsmar.com/ubb/Forum10/HTML/000027.html
To finish off, there is https://elsmar.com/ubb/Forum10/HTML/000038.html and there is
and last, but not least, is: and there is https://elsmar.com/ubb/Forum27/HTML/000004.html

[This message has been edited by TheOtherMe (edited 01 August 1999).]

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Roger Eastin
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From:Greenville, SC
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posted 02 August 1999 07:52 AM     Click Here to See the Profile for Roger Eastin   Click Here to Email Roger Eastin     Edit/Delete Message   Reply w/Quote
Marc has given you some good threads here. For what you want, you could even use a "plug and chug" formula to determine validity, but you need some basic information like alpha and beta risks, fraction defective, etc. It would be helpful (and this may be in one of the threads that Marc has given you) to have a brief description of what type of plan you need (attribute, variable, acceptance number - sounds like c=0 for you, risk you are willing to accept) and see which plan "fits" you. For instance, there are several c=0 plans depending on the type of process you are taking your samples from. Then you can order the appropriate plan from the website that I listed above.

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