WK90227 - New Specification for Compacted Mineral-Insulated, Metal-Sheathed, High Temperature Irradiation Resistant Thermocouples

Work Item

ASTM WK90227

New Specification for Compacted Mineral-Insulated, Metal-Sheathed, High Temperature Irradiation Resistant Thermocouples

1. Scope

This specification establishes dimensional and material requirements for compacted, mineral-insulated, metal-sheathed (MIMS), high temperature irradiation resistant thermocouples (HTIR-TC) with one HTIR-TC thermoelement pair. These types of thermocouples are suitable for high neutron fluence, up to 1022 n/cm2, and a high temperature, up to 2912 ? [1600 ?].

Keywords

Irradiation-resistant; Thermocouple; High-Temperature; Nuclear; Transmutation

Rationale

The standard defines the build and calibration of a high-temperature, irradiation-resistant thermocouple (HTIR-TC) for use in nuclear environments up to 1600?. The standard will guide purchasers and providers with repeatable steps to produce consistent HTIR-TCs.

Details

Developed by Subcommittee: E20.12

Committee: E20

Staff Manager: Krista Robbins

Work Item Status

Date Initiated: 04-08-2024

Technical Contact: Richard Skifton

Item: 001

Ballot: E20.12 (24-02)

Status: Will Reballot Item