Is there an "official" table of NIST 640c Silicon cell axes (with ESD) for when NIST 640c is not exactly measured at 22.5 °C (say anywhere between 5°C to 40°C)
Using the certificate reference via: https://srmors.nist.gov/view_cert.cfm?srm=640C The certified lattice parameter for a temperature of 22.5 °C is 0.54311946 nm ± 0.00000092 nm The NIST certificate mentions the thermal expansion coefficient which was applied to the measured peaks. For those who like their XRD calibrations and/or wavelengths backed up all the way with a bit of NIST Onion Paper, it would be nice to have such a table (or the range in which the stated thermal expansion coefficient in the certificate (and certificate ESD) is valid). (Some labs have different air-conditioning temperatures / or lack of room temperature control). Lachlan -- ----------------------- Lachlan M. D. Cranswick Contact outside working hours / Coordonnees en dehors des heures de travail: E-mail / courriel: [EMAIL PROTECTED] Home Tel: (613) 584-4226 Mobile/Cell: 613 401 3433 WWW: http://lachlan.bluehaze.com.au/ P.O. Box 2057, Deep River, Ontario, Canada, K0J 1P0 (please use clear titles in any Email - otherwise messages might accidentally get put in the SPAM list due to large amount of junk Email being received. If you don't get an expected reply to any messages, please try again.) (Essayez d'utiliser des titres explicites - sans quoi vos messages pourraient aboutir dans un dossier de rebuts, du fait de la quantite tres importante de pourriels recue. Si vous n'obtenez pas la reponse attendue, merci de bien vouloir renvoyer un message.)
