Issue link: https://iconnect007.uberflip.com/i/1471044
82 PCB007 MAGAZINE I JUNE 2022 fications are called (55110 and 50884) that the appropriate revision and amendment (if appli- cable) are specified. e reason for this is that older revisions did not allow certain types of test methodology available today to be used as they were not available when the older revi- sion was created. For example, the use of indi- rect test by signature comparison, sometimes stated as discharge test on a flying probe, was not allowed in earlier revisions of the specifica- tions. It has only been in recent years that this practice is allowed and only in certain revi- sions of the specifications. Now, when talking about MIL-PRF-31032 and electrical test, it's a new ballgame. Just stating, "Test to MIL-PRF-31032," will not work. You see, with MIL-PRF-31032, you also have the build supplements, usually referred to as "slash sheets." ere are slash sheets one to eight. ey specifically address the type of product manufactured and requirements above the standard 31032 specification. If that isn't enough, the slash sheets all have a revi- sion level and likely an amendment. So, when your customers request builds compliant to MIL-PRF-31032 you need to push for the slash sheet, revision, and amendment to be used. As of June 2022, the specification sheet is MIL- PRF-31032/1D with Amendment 3. If this is documented on the production traveler or document, it will remove all con- fusion at the time of electrical test. is doc- ument contains all relevant information as to what test methodologies are allowed and what documentation is required for traceability. If the "slash," revision, and amendment are not given, there is a chance that the product could be tested outside the requirements the cus- tomer intended. Working with the DLA over the years, this is one of the most common audit nonconfor- mances I've found regarding electrical test ser- vice centers and in-house ET departments. ese specifics need to be on the Certificate of Compliance (CoC) for all military products. If you receive product calling out MIL- PRF-31032 that does not specify the specific revision, slash sheet/revision, and amend- ment, the appropriate action is to stop and query your customer or sales team to gather this information before proceeding. Failure to do so may result in an audit nonconformance and incorrect traceability of the product tested. We all know it is taxing enough to go through these periodic audits so having these ducks in a row will stop an almost sure nonconfor- mance and corrective action. Plus, it will make the electrical test department or service center confident they are providing the service(s) the customer intended. PCB007 Todd Kolmodin is VP of quality for Gardien Services USA and an expert in electrical test and reliability issues. To read past columns or contact Kolmodin, click here.