Please note that element concentrations may vary in between lots. Thus, the matrices listed in the following catalogues may not state the current values. Moreover, the standards listed in the overviews may have been sold out in the meantime. Please let us know about your needs. We verify the currently available lot and are happy to look for alternative standards in case the required lot might have been sold out.
HRT Labortechnik GmbH represents BRAMMER STANDARD Co., Inc., Houston, TX, USA, in Europe. Please find below various catalogues of our partner BRAMMER STANDARD with certified reference materials from all over the world.