Dear All,
Thank you very much for your answers. It helped me a lot!
Best Regards,
Jan
From: rietveld_l-requ...@ill.fr On Behalf Of
Matthew Rowles
Sent: Friday, August 16, 2024 4:28 AM
To: Jan Rohlíček
Cc: rietveld_l@ill.fr
Subject: Re: Alternative suppplier for QPA standards
Hi Jan
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 th
