Do Calibration Suppliers need to be included in the list of Approved Suppliers?

[BradM]

thank you everyone for your input, it seems that I am going to do some extra work....another question.... what if you have a new instrument, like a thermometer, and it does not have a certificate of calibration from the manufacturer, should I have to send it out for calibration?... it is new and I compared it against other thermometers and it is working perfectly; to me it is just a waste of money and time to send it out just because of the certificate, and I am actually planning to send only one thermometer to an external lab and use that one to check my other thermometers.... will that work?

thanks again.

Like Helmut said, yes you can calibrate in-house. I assume it is OK to do within 16949. You need to assure that you have the appropriate calibration equipment (of sufficient stability/uniformity), procedures in-place, and that the instrument you are going to use is sufficiently more accurate (4 times more accurate is a good rule of thumb).

I know what you are saying about the certificate. However, if sent to a competent lab, that certificate has value. That value being that you can confidence in its accuracy. Also, having all the needed in-house equipment to do the calibration can get expensive.

 

[somashekar]

thank you everyone for your input, it seems that I am going to do some extra work....another question.... what if you have a new instrument, like a thermometer, and it does not have a certificate of calibration from the manufacturer, should I have to send it out for calibration?... it is new and I compared it against other thermometers and it is working perfectly; to me it is just a waste of money and time to send it out just because of the certificate, and I am actually planning to send only one thermometer to an external lab and use that one to check my other thermometers.... will that work?

thanks again.

That an instrument is new does not get it an automatic status of calibration waiver. Your approach for internal calibration is right. Good to have a simple procedure how you will execute it and generate a valid traceability to the master that you have, which is calibrated externally. Also decide on the periodicity of calibration depending upon its handling and use. Please approach this from the aspect of requirement rather that time and money.

 

[qusys]

I did not undestrand if you have the competence and resources to calibrate this tool in house. Apparently it seems not, based upon the previous email in thread.
Based upon this consideration , you woukld like to use one outside calibrated thermometer as "primary" to compare the funcionality of the others.
IMHO, it couldn't be possibile given that it should be assured the funcionality of each gage.
Then did you consider to have them " for reference only"?? What is the purpose of these tools? Are they used to release processes with precise value ?
As to new tool, you should require the certificate to the manufacturer: they should send how long time it required calibration from the beginning

thank you everyone for your input, it seems that I am going to do some extra work....another question.... what if you have a new instrument, like a thermometer, and it does not have a certificate of calibration from the manufacturer, should I have to send it out for calibration?... it is new and I compared it against other thermometers and it is working perfectly; to me it is just a waste of money and time to send it out just because of the certificate, and I am actually planning to send only one thermometer to an external lab and use that one to check my other thermometers.... will that work?

thanks again.