HOT - Papers: Cross-calibration of Standard Seawater Batches P114, P115, P118, P121, P123, P128 and P130 through the Hawaii Ocean Time-series

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Cross-calibration of Standard Seawater Batches P114, P115, P118, P121, P123, P128 and P130 through the Hawaii Ocean Time-series

Craig Nosse
Department of Oceanography
University of Hawai'i

Abstract:

Previous studies have quantified the amount of variation within and between IAPSO Standard Seawater (SSW) batches through electrical conductivity comparisons by using `Autosal' salinometers (Mantyla, 1980; Mantyla 1986). These studies have shown within-batch differences which are very small, on the order of 0.001. Between-batch differences can be larger and were seen as high as 0.009. This study, made possible by the Hawaii Ocean Time-series (HOT) program, serves to quantify the amount of variation involving some of the more recent SSW batches. In almost all cases, within-batch differences are small, as found earlier on order of 0.001. Between-batch differences exist in these newer batches with differences as large as 0.005.

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This material is based upon work supported by the National Science Foundation under Grant No. OCE 9303094, 9811921, 0117919, and 0327513. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF.