Concentration standard deviation of organic carbon {organic_C CAS 7440-44-0} per unit dry weight of sediment by acidification and elemental analysis SDOrgC The square root of the average of the squares of deviations about the mean of a set of values of the specified measurement. 2018-10-15 17:05:31.0 SDN:P01::OCSDCAXT SDN:P01::OCSDCAXT SDN:P01::OCSDCAXT 4 4 2018-10-15 17:05:31.0 accepted false