National/International Standard For Calibration "As Found" Readings

[CLaurenceH]

So this may seem like a dumb question but it was brought up when someone made an update to one of our main department procedures. But this is the statement that was added to the procedure which makes sense.

Collecting As Found Data: Unless otherwise noted, prior to and during the collection of As Found data, the UUT should not be cleaned or adjusted.

The concern that I brought up was that we have procedures for Laser Mics that in the procedure we are asked to clean the lens before taking "As Found" readings. I personally think that we should not be cleaning the lens before taking readings. From what I have learned is that you want to record the as found readings just as the end user would be using the equipment. The reason being that it could be possible that the equipment they are using is out of tolerance because it is dirty. This would also inform the end user that they should be performing routine PM's on the equipment to prevent OOT conditions.

Of course if the unit was found OOT then we would clean the equipment and record As Left data to see if the debris may be the cause of the OOT.

I've been asked to...
Please look to determine if there is a national/international standard on this topic. How does ASME, ANSI, ISO, GIDEP, etc. handle these calibrations? What do other companies do?

Any information people can provide would greatly be appreciated. This is my first post and hopefully it makes sense.

Thanks