This beautiful thing is the analog backup record of my father's cremation — indicating temperature as distance-from-center, and time of day as rotation. The funeral home is required to generate and keep these on file for regulator audits; but they were happy to give me a nice scan. Wild!

Also if anyone is curious this is the company that produces the blank charts: https://www.chartpool.com/

Posted by TenFresh

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9 Comments

  1. BadgerFan303 on

    We use these same charts in the dairy industry to prove proper pasteurization and CIP (clean in place) of the equipment. Some of them can contain multiple pens (different colors) to track multiple temperatures at once.

  2. kingtacticool on

    So, three and half hours at 1650.

    I’ll just write that down for…..reasons.

  3. Circ charts are also used in Oil and Gas when pressure testing equipment and wells.

  4. Can someone ELI5 why the chart is a spiral, instead of the “vertical” lines being straight?
    I’m sure there’s a good reasons for it, but I can’t seem to figure it out…

  5. Life-Jellyfish-5437 on

    It’s amazing that these are still used. There are so many low cost electronic recorders that don’t need paper or ink pens and are easier to calibrate.

  6. Check twice? To make sure you cremate the correct person, or make sure they’re not alive?

  7. Adrammelech10 on

    I’m impressed by how quickly it reaches temperature. I would have thought it would have taken longer to warm up.