Equipment calibration standard traceability - The basis used for calibration

[darkafar]

According to iso9001:2000 clause 7.6 a)
"measuring equipment shall be calibrated or verified at specified intervals, or prior to use, against measurement standards traceable to international or national measurement standards."
My problems is, the equipment engineers only wrote down how to calibrate the equipment, when to do it, without pointing out where their methods come from. They told me verbally that the methods are corporate standard.
I don't know if this comforms to the statement "where no such standards exist, the basis used for calibration to verification shall be redorded."

[samer]

hi freind

what I suggest is to ask the engineers about the standard , they should defined it for you, this is yr right ,there should be a defined reference for that calibration, where not applicable!!! , you can yr inhouse defined calibation system with yr own criterias and references

if you specify yr case then this will make it easy to understand

samer

[Jim Wynne]

In Reply to Parent Post by darkafar

According to iso9001:2000 clause 7.6 a)
"measuring equipment shall be calibrated or verified at specified intervals, or prior to use, against measurement standards traceable to international or national measurement standards."
My problems is, the equipment engineers only wrote down how to calibrate the equipment, when to do it, without pointing out where their methods come from. They told me verbally that the methods are corporate standard.
I don't know if this comforms to the statement "where no such standards exist, the basis used for calibration to verification shall be redorded."

The "standards" referred to are the measurement standards, not the calibration documentation. That is, the things that you measure (gage blocks, e.g.) in order to verify a device need to be traceable to a national standard. The techniques or procedures used to calibrate devices do not need to be traceable (although they do need to make sense).

[samer]

In Reply to Parent Post by Jim Wynne

The techniques or procedures used to calibrate devices do not need to be traceable (although they do need to make sense).

I would say that in too many cases we should have tracing for the calibration standard procedure too, that may not be declared in the standard but there is always international standard procedures for calbration of certain devices (like Psychometric humidity measuring device as example .........)

Samer

[Jim Wynne]

In Reply to Parent Post by samer

I would say that in too many cases we should have tracing for the calibration standard procedure too, that may not be declared in the standard but there is always international standard procedures for calbration of certain devices (like Psychometric humidity measuring device as example .........)

Samer

"Standards" are a matter of agreement between two parties. I agree that there are generally accepted methods of doing things wrt calibration, and that those methods generally make good sense, but in the end it's a matter of agreement between customer and supplier, and insofar as standard measuring devices are concerned, traceability of methods is not an issue.

[Hershal]

I moved the thread because it appears to be addressing traceability much more than with 9K.

Hershal