Many site investigations involve analyses for just a few specific targets, not the entire "list" of analytes. Wouldn't your project gain more benefit from custom QC or PT standards prepared only with the analytes of interest at just the right levels in your matrix of concern? With custom standards prepared to match your project-specific needs, you and your client will gain a level of confidence with tangible evidence that your laboratory is meeting all quality objectives. Download our Custom Standard Quotation/Order Form or call our customs group at 1-800-372-0122. You can also email us at