| source | Ocean Scentific ... OSIL | |
| specification | The IAPSO Standard Seawater Service provides seawater standards of precisely known electrical conductivity ratio for the calibration of salinity measurement devices. It is the only salinity standard approved by all the major oceanographic bodies. For over 100 years, the comparability of salinity data world-wide has depended on the wide-spread use of this standard for calibrating laboratory and in-situ instruments. IAPSO Standard Seawater is available in high quality, crimp sealed glass bottles. The bottle label carries information on conductivity ratio (K15) and salinity according to the Practical Salinity Scale 1978 (PSS78). | |
| Composition and most important chemical species of some dissolved elements in sea water.Produced from data supplied in : Summerhayes, C. P., and Thorpe, S. A., 1996 : Oceanography An Illustrated Guide, Chapter 11, 165-181. | ||
| Element |
concentration |
concentration range |
| As |
1.7 µg/kg |
1.1-1.9 µg/kg |
| Al | 0.54 µg/kg | 0.01-1.2 µg/kg |
| B | 4.5 mg/kg | average |
| Ba | 14 µg/kg | 4-20 µg/kg |
| Br | 67 mg/kg | average |
| C_total |
27.6 mg/kg |
24-30 mg/kg |
| Ca | 412 mg/kg | average |
| Cd | 0.08 µg/kg | 0.0001-0.12 µg/kg |
| Cl | 19354 mg/kg | average |
| Cs | 0.29 µg/kg | average |
| Cu | 0.25 µg/kg | 0.03-0.4 µg/kg |
| F | 1.3 mg/kg | average |
| Fe | 0.055 µg/kg | 0.005-0.140 µg/kg |
| Hg | 0.001µg/kg | 0.0004-0.002 µg/kg |
| I | 50 µg/kg | 25-65 µg/kg |
| K | 399 mg/kg | average |
| Li | 0.174 mg/kg |
average |
| Mg | 1290 mg/kg | average |
| Mn | 0.014 µg/kg | 0.005-0.2 µg/kg |
| Na | 10770 mg/kg | average |
| N | 0.42 mg/kg | 1-0.63 mg/kg |
| Ni | 0.5 µg/kg | 0.1-0.7 µg/kg |
| P | 70 µg/kg | 0.1-110 µg/kg |
| Pb | 0.002 µg/kg | 0.001-0.035 µg/kg |
| Rb | 0.12 mg/kg | average |
| S_total | 904 mg/kg | 2712 mg/kg SO4 |
| Si | 2.8 mg/kg | 0.02-5 mg/kg |
| Sr | 7.9 mg/kg | average |
| U | 3.3 µg/kg | average |
| Zn | 0.4 µg/kg | < 0.01 - 0.6 µg/kg |