Does registration or certification in ISO 17025 prove that the calibration company is competent to calibrate Test & Measurement Equipment. They are certified to a spec but can they provide proper handeling of electronic equipment. Does an ISO 17025 certificatre imply?
harveycr 7/15/2005
Look at the lower corner at the section called "links". The discussion boards are in the drop down menu. You might also wnat check out Elsmar.com
cdezutter 7/14/2005
Thanks a bunch for your reply, that was exactly the answer I was looking for. This was just the first time I have ever run into that terminology on the bench per se.
I'm glad to see that there is another good metrology forum out there though. I had just started using the ASQ metrology discusion forums, and then they updated the website. Since the update I haven't been able to find the old metrology forums. I'm not very good at teh interweb though........If someone has a link, that would be very helpful.
I would hate to think that ASQ got rid of the metrology discusion forums, If they did then we might have to sick Hershal on them, hehe.
harveycr 7/14/2005
Here is an explanation absolute and relative error - not sure if that is exactly what you were looking for:
Absolute error = difference between estimate and true figures e.g.
A student may expect to spend £10 per week in the Union bar, but actually spends £12.50. Absolute error = £2.50
Another student expects to spend £20 per week in the bar, but spends £22.50. Again absolute error = £2.50
But error in the first case = 25% of the original estimate; in the second case, error = 12.5%
For a comparative measure, relative error is used: Relative error is absolute error divided by estimate, often expressed as a percentage:
Relative error = (absolute error / estimated figure) x 100
As in above examples:
(2.50 / 10) x 100 = 25%
(2.50 / 20) x 100 = 12.5%