U

For U, source document is ANSI and IEC Color Codes, verified against its source on 2026-08-19.

Type letter: U verified
Source document: ANSI and IEC Color Codes verified

Sourceassets.omega.com

Verified2026-08-19

Review by2028-08-18

DatasetThermocouple type letter to alloy pair, ANSI/IEC color code and tolerance class

What the source says

Extension Grade + + + U U NONE COPPER-LOW Connecting Wire for ESTABLISHED – COPPER R & S Thermocouples, – – Cu NICKEL Also Known as RX & SX Cu-Ni Extension Wire.

— assets.omega.com, retrieved 2026-08-19

Source

assets.omega.comhttps://assets.omega.com/pdf/test-and-measurement-equipment/temperature/sensors/thermocouple-probes/tc_colorcodes.pdf

Last verified against source: 2026-08-19. Due for re-check by 2028-08-18. This page as Markdown · OKF bundle · full dataset as JSON.