A material or substance one or more properties of which are sufficiently well established to be used for the calibration of apparatus the assessment of a measurement method or for assigning values to materials. Ferrous metals nonferrous metals high-purity materials inorganics microanalysis geological materials and ores ceramics and glasses. A complete Certificate of Analysis is provided free of charge with each order.
None is intended for nor suitable for cosmetic drug food agricultural or household use.
We must have written confirmation in the form of a purchase order before shipment is made.