Procurement & Evidence

Reading order

The procurement guides follow a purchase from request to evidence to cost. Begin with a practical RFQ checklist, which turns capacity, environment, interfaces, evidence, service and acceptance needs into a clear request. Next, read the FAT and SAT guide to agree on protocols, test cases and sign-off before you place an order. When suppliers send documents, the guide to reading thermal packaging qualification reports helps you check what a report covers. Finally, use the packout cost worksheet to compare options on stated assumptions rather than on a single quoted price.

The order is flexible. Many teams read the cost worksheet early to see which inputs they lack, then return to the RFQ once those are filled in.

What to have on paper first

• Before writing an RFQ, gather the process description, the throughput you need, the site conditions, the interfaces to adjacent equipment and the records you must keep.
• Before agreeing on FAT and SAT, decide who writes the protocol, who witnesses it, how deviations are handled and what counts as acceptance.
• Before reviewing a qualification report, have your own payload, temperature profile, duration and acceptance criteria written down so you can compare them with the report.
• Before using the cost worksheet, collect your own figures for materials, labor, monitoring, return logistics and losses. The worksheet leaves cells blank for you to fill in, and any numbers shown elsewhere are labeled as illustrative.

Product temperature limits come from product documentation. These guides do not state what range any product needs.

Handing over from the other sections

This section depends on decisions made elsewhere. A packaging comparison such as active versus passive systems tells you what you are qualifying evidence for. Logger requirements from the data logger specification and the calibration certificate guide belong in the RFQ as documents to request. Station and line requirements from the packout station guide and the end-of-line guide supply the interfaces that most RFQs leave thin.

Mistakes these guides help avoid

• Sending an RFQ that describes a machine but not the interfaces around it, so quotes cannot be compared.
• Leaving acceptance tests to be defined after the purchase order, when the buyer has the least bargaining power.
• Reading a qualification report’s headline conclusion without checking the test object, payload, duration and stated limits.
• Comparing cost on unit price alone and ignoring labor, monitoring, returns and losses.
• Assuming a report produced under one set of conditions covers your conditions.

The guides supply checklists and field tables and imply no supplier ranking, price or test result. This publication has tested nothing. You remain responsible for your requirements, quotations and qualification decisions, and the guides help you write those decisions down and defend them.