When recording results of a Temperature Uniformity Survey (TUS), it's important to know what information is required. In fact, the list is so long the AMS2750 spec needed to employ the entire...
Section 3.1.7.1 of AMS2750 revision F says: "During the reuse of non-expendable type E or K thermocouples when used above 500.0 °F or 260.0 °C, the depth of insertion shall be equal to or greater...