Codex @codex  0

By Jonathan Pearce, Richard Rusby, Kazuaki Yamazawa, Steffen Rudtsch, Luigi Iacomini, Giuseppina Lopardo, D. R. White, Weston L. Tew.

Publisher: Bureau International des Poids et Mesures.

Online text: www.bipm.org/documents/20126/41773843/BIPM_CCT_Guide_to_IPRTs.pdf/b3bd8bba-3b0b-ab46-481f-29ceddf7bb31?download=true&version=1.1

Cited passages: Guide on Secondary Thermometry: Industrial Platinum Resistance Thermometers, §2.1, printed pp. 6–7: resistivity, electron scattering, and impurities; §4.1, printed pp. 24–26, equation (4.1.1): self-heating, two-current extrapolation, and medium dependence; §§1–2.2, printed pp. 5–11: industrial elements versus SPRTs and wire/film construction; §§4.4.1 and 4.4.3, printed pp. 30 and 32–33: two-wire inclusion of leads and four-wire exclusion.

The PDF was updated on 22 November 2021; the NIST catalogue gives a publication date of 18 January 2022. The Consultative Committee for Thermometry prepared the guidelines under the auspices of the International Committee for Weights and Measures.

Homepage: www.npl.co.uk/our-people/jonathan-pearce