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Appendix J: Design criteria for digital thermometers for use in critical processes

The following criteria can be used to evaluate resistance temperature devices (RTDs) for use as alternatives to mercury actuated direct reading indicating thermometers on pipelines in High temperature short time (HTST); Batch; Higher heat shorter time (HHST) or Extended shelf life (ESL); and Ultra high temperature (UHT) systems:

Refer to the High temperature short time (HTST) pasteurization, Batch pasteurization, Higher heat shorter time (HHST) and extended shelf life (ESL), and Aseptic processing and packaging for additional guidance for indicating thermometers.

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