Yes. You define your own traceability requirements based on type of product, customer requirements, and in general if it is a standard practice in your industry.
We design, manufacture, and install weighing scales to weigh trucks, trains etc. It is not an industry (weighing scale industry) practice to trace any of the materials, or components used in making the scales.
However we wrote our procedures like this
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We will provide traceability for Scales with serial numbers put on them. We do this merely to track the warranty status. If the customer calls us say 10 years from the day they were sold, we can check if it is still under warranty or not based on serial tag.
We will provide traceability for Load Cells – with serial numbers provided by our load cell sub-contractor. When we assemble the load cells into scales, we write down and keep track their serial numbers. Again we do this merely for warranty sake. A customer may have several scales, with several kinds of load cells, supplied by several kinds of load cell and scale manufacturers. If we do not keep track of the load cell serial numbers, we have no way to tell if the load cell in question was supplied by us or not.
Where it is a special customer requirement (as specified in the sales contract), steel used to make the scale will also be traced, by using a CERTIFICATE OF COMPLIANCE provided by the steel sub-contractor. This certificate is filed as a Quality Record in the Job Master File.
Where it is a customer requirement, a SCALE CALIBRATION CERTIFICATE is prepared after installation / service / calibration. This certificate which will be kept as a Quality Record, identifies the product, and the services performed. Test weights used to calibrate a scale are also traceable by referring to the WEIGHTS CERTIFICATE numbers listed on the Scale Calibration Certificate. Weights Certificate lists the identification and the calibration status of the test weights.
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Summary
Traceability is what your customer demands, or what makes business sense to you. We chose to trace our scales and load cells (that are in the scale) just to cover warranty costs. But, if a customer wants us to, we will even trace the raw steel (used in making the scale) or test weights (used to calibrate the scale).
Janie, it was not easy for me to write the above procedure. But, believe me, you, me and every body goes through the same questions. We are not certified yet, but I am willing to take it up with any auditor that might have a problem with it.
Tit Bit
After the Oklahoma bombing (using explosives made out of fertilizers) of the Federal Building, some experts suggested, that some kind of plastic particles be added to the fertilizers. These particles will remain in tact even after explosion, and provide traceability to who made it, who sold it, and when it was sold. I am not sure what happened to this idea. Talk about traceability……….ha!
Madhu