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Difference between Calibration, Testing and Inspection Laboratories?


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inspection methods and plans, testing laboratories, calibration (metrology) laboratories
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  Post Number #1  
Old 3rd September 2008, 09:58 AM
Daniel Walker - 2011

 
 
Total Posts: 88
Please Help! Difference between Calibration, Testing and Inspection Laboratories?

I am trying to come up with an easy explanation of the differences between Calibration, Testing and Inspection labs. I know what calibration labs do, but am not too sure of the exact definition of testing or inspection.

I did stumble across this:

"Calibration labs perform tolerance testing and adjustments of measuring equipment or standards. Testing labs perform tests on certain materials to make sure they meet specifications. Inspection labs generate layouts or drawings of customer supplied products."


Is this correct? Any ideas?
Thanks for any input!

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  Post Number #2  
Old 3rd September 2008, 10:20 AM
dcorbett's Avatar
dcorbett

 
 
Total Posts: 24
Re: Difference between Calibration, Testing and Inspection Labs?

I think the deffinition you supplied will "fit the bill". All three will probably offer a multitude of services and there will undoubtedly be some overlapping.
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  Post Number #3  
Old 3rd September 2008, 11:12 AM
zancky's Avatar
zancky

 
 
Total Posts: 174
Re: Difference between Calibration, Testing and Inspection Labs?

Quote:
In Reply to Parent Post by Daniel Walker View Post

"Calibration labs perform tolerance testing and adjustments of measuring equipment or standards. Testing labs perform tests on certain materials to make sure they meet specifications. Inspection labs generate layouts or drawings of customer supplied products."
Some ideas
Inspection lab. Some companies ask to external lab to perform visual inspection, visual sorting etc
Testing labs may be a lab that make an analysis (e.g. university laboratory) or endurance test not necessary related to a specification/requirement
Thanks to zancky for your informative Post and/or Attachment!
  Post Number #4  
Old 3rd September 2008, 04:39 PM
Hershal's Avatar
Hershal

 
 
Total Posts: 2,464
Re: Difference between Calibration, Testing and Inspection Labs?

It is a decent working definition.....

Test labs may test materials, bio things or whatever in order to see if the item complies with some specification (e.g., ASTM E 1886 and E1996 for window impact resistance).....accreditation standard is ISO/IEC 17025:2005

Inspection organizations may be reviewing prints or looking at widgets or doing source inspections up the supply chain.....accreditation standard usually is ISO/IEC 17020.....

Hope this helps.
Thanks to Hershal for your informative Post and/or Attachment!
  Post Number #5  
Old 3rd September 2008, 04:49 PM
Hondo812

 
 
Total Posts: 23
Re: Difference between Calibration, Testing and Inspection Labs?

A testing lab would test materials/product to measure performance. In other words what is the widget supposed to do? If it's a seatbelt what load does it break at? How many uses until failure? They would measure the product performance specification.

An inspection lab will determine the thread count per inch of the seatbelt, denier of the fiber, the thickness and width of the belt, etc. They are usually inspecting to a drawing.
Thanks to Hondo812 for your informative Post and/or Attachment!
  Post Number #6  
Old 18th March 2009, 09:42 AM
jennyhicks

 
 
Total Posts: 1
Re: Difference between Calibration, Testing and Inspection Labs?

It is imperitive to use a lab with a ISO/IEC 17025:2005 accreditation.
  Post Number #7  
Old 18th March 2009, 09:46 AM
AndyN's Avatar
AndyN

 
 
Total Posts: 8,459
Question Re: Difference between Calibration, Testing and Inspection Labs?

Quote:
In Reply to Parent Post by jennyhicks View Post

It is imperitive to use a lab with a ISO/IEC 17025:2005 accreditation.
Welcome, Jenny!

Why do you say this? Can you shed some light for other readers here?
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