1.1Â This test method covers the determination of trace sodium in high purity water. The method range of concentration is 1 to 40 ÎĽg/L sodium. The analyst may extend the range once its applicability has been ascertained.
1.2Â This test method is a graphite furnace atomic absorption spectrophotometric method for the determination of trace sodium impurities in ultra high purity water.
5.1Â Small quantities of sodium, 1 to 10 ÎĽg/L, can be significant in high pressure boiler systems and in nuclear power systems. Steam condensate from such systems must have less than 10 ÎĽg/L. In addition, condensate polishing system effluents should have less than 1 ÎĽg/L. Graphite furnace atomic absorption spectroscopy (GFAAS) represents technique for determining low concentrations of sodium.
| SDO | ASTM: ASTM International |
| Document Number | D6071 |
| Publication Date | Jan. 1, 2013 |
| Language | en - English |
| Page Count | 5 |
| Revision Level | 13 |
| Supercedes | |
| Committee | D19.03 |