Dear All, Thank you very much for your answers. It helped me a lot! Best Regards, Jan From: rietveld_l-requ...@ill.fr <rietveld_l-requ...@ill.fr> On Behalf Of Matthew Rowles Sent: Friday, August 16, 2024 4:28 AM To: Jan Rohlíček <rohli...@fzu.cz> Cc: rietveld_l@ill.fr Subject: Re: Alternative suppplier for QPA standards Hi Jan Independent Minerals Standards have a corundum certified at 99.04% crystalline. It was done* via external standard calibration by reference to NIST 676a. https://imstandards.com.au/independent-mineral-standards-releases-ims135/ *I was involved in the XRD measurements that were used in the certification. Matthew On Thu, 15 Aug 2024 at 18:36, Jan Rohlíček <rohli...@fzu.cz <mailto:rohli...@fzu.cz> > wrote: Dear All, SRM 676 (corundum for QPA) at NIST has been out of stock for some time. Is there an alternative supplier for some similar standard(s)? Thank you in advance, Jan Rohlicek Institute of Physics CAS Cukrovarnicka 10/112 162 00 Prague 6 Tel: (+420) 220 318 484 Email: rohli...@fzu.cz <mailto:rohli...@fzu.cz> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Please do NOT attach files to the whole list <alan.he...@neutronoptics.com <mailto:alan.he...@neutronoptics.com> > Send commands to <lists...@ill.fr <mailto:lists...@ill.fr> > eg: HELP as the subject with no body text The Rietveld_L list archive is on http://www.mail-archive.com/rietveld_l@ill.fr/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Please do NOT attach files to the whole list <alan.he...@neutronoptics.com> Send commands to <lists...@ill.fr> eg: HELP as the subject with no body text The Rietveld_L list archive is on http://www.mail-archive.com/rietveld_l@ill.fr/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
