1988 Compilation of Elemental Concentration Data for CCRMP Reference Rock Samples SY‐2, SY‐3 and MRG‐1

Abstract
Concentration data on 80 individual constituents in Canadian Certified Reference Materials Project rock reference materials SY‐2, SY‐3, and MRG‐I have been collected from 382 journal articles and technical reports. These data are summarized as consensus (mean) values with uncertainties expressed as one standard deviation. Mean values are also calculated as a function of analytical procedure and all raw data are given in the tables. Recommended values are proposed based upon data criteria used by NIST (National Institute of Standards and Technology, formerly the National Bureau of Standards or NBS).