Ross, The link to The Gem Dugout X-ray Diffraction Products is http://www.thegemdugout.com/products.html. The provide several reference specimens for affordable price, e.g. LaB6 - $10/g. And other diffraction products. Peter
Dr. Peter Y. Zavalij Director, X-ray Crystallographic Laboratory Department of Chemistry & Biochemistry 091 Chemistry Building University of Maryland College Park, MD 20742-4454 Phone: (301)405-1861 Fax: (301)314-9121 E-mail: [EMAIL PROTECTED] http://www.chem.umd.edu/facility/xray/ -----Original Message----- From: Ross Williams [mailto:[EMAIL PROTECTED] Sent: Thursday, November 15, 2007 9:51 PM To: rietveld_l@ill.fr Subject: Sources of standard reference materials Hi All, Does anyone know an appropriate source of standard reference materials for a line profile standard, like NIST SRM 660a (LaB6) - other than NIST, as they are out of stock and "...is expected to become available by November 2009." Thanks, Ross
