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 The New Elsmar Cove Forums
 ISO 9001/4:2000
 Control of monitoring and measuring devices
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| Author | Topic: Control of monitoring and measuring devices |
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Cristina unregistered |
posted 06 June 2001 07:19 AM
 
The ISO 9001:2001 refers that the organization shall identify the processes needeed for the quality management and determine the sequence and interaction of these processes. The question is: Shall we have to establish a different Calibration Plan (Control of monitoring and measuring devices) for each process or we can maintain one with all? Thanks IP: Logged |
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Graeme Forum Contributor Posts: 30 |
posted 06 June 2001 03:36 PM
 
In my opinion, the answer to your question is that one calibration plan is sufficient for all production processes. Except for very special cases, the calibration requirements of a measuring instrument are not dependent on the process it it used in. The person doing the calibration often does not know or care what the process is -- they only know about the tool he or she just picked up to work on. Also, if a common measuring instrument is issued at random from a central toolroom, it is likely to be used on a different process every time. Calibration verifies the performance of a measuring instrument against its own specification, by comparing it to a known standard of lower uncertainty. In most cases, the process the instrument is used in has no effect on the instrument's own specifications or, therefore, the calibration requirements. There are some exceptions, but they are (in my experience) rare. Differences between different types of instruments are handled by the calibration activity. Micrometers, theodolites and voltmeters each require different calibration processes, but that is because they are different types of instruments. It has nothing to do with the processes they are used in, though. ------------------ [This message has been edited by Graeme (edited 06 June 2001).] IP: Logged |
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