Measure 3 times, for calibration report? Customer Owned Reference Standard

G

greif

Involved In Discussions
#1
#1
When measuring a linear dimension customer part for calibration, is it standard practice to measure each designated point three times and report the average?
I see that Webber does this for gauge blocks and notes it on the report. I wonder if others do it as part of their procedure, but may not mention it on the report.

It seems like a good practice.
 
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Marc

Marc

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#2
#2
greif said:
linear dimension customer part for calibration
Click to expand...
Problem...
  • Linear Dimension - Measurement of a customer part is not "for calibration".
  • Gauge blocks are not "customer parts". They are "reference standards".
Experts - What am I missing in this?
 
G

greif

Involved In Discussions
#3
#3
Being a bit of a stickler? Where it says "customer part", please read "customer owned Reference Standard".
If a Calibration Report is to be issued, to job is to calibrate the customer Item.
 
D

dwperron

Trusted Information Resource
#5
#5
You need to define what you are doing, so the customer can interpret the results.

I've seen an average given for pin gauges, measuring each end and the center. Personally I feel that would be useless to a customer, but if that is OK with the customer then there is no problem.
Magic phrase - is it OK with the customer? Is that what they expect?

Go back to my pin gauge example. If I report the average, but the customer thinks I am reporting the worst case of the three measurements, then there is a problem.
 
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