Difference between revisions of "Total Dissolved Solids (TDS)"
(Created page with "How does OLI rigorously calculated TDS? See: ASTM D5907-03") |
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| + | OLI originally developed the TDS calculation according to parameters set forth in ASTM D5907-03 (American Society of Testing Methods, West Conshocken, PA, United States). Recently this technique was modified to follow the parameters in ASTM D5907-18. | ||
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| + | Both techniques heat a 1.0 L of solution of liquid to 180 <sup>o</sup>C which should remove all the volatile components. The mass remaining is the TDS in mg/L | ||
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| + | Occasionally this calculation will fail, especially with solutions that are dilute. In such cases an estimated TDS value is returned which is the sum of all liquid species minus water. | ||
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| + | [[category: Thermodynamics]] | ||
| + | [[Category:Technical Challenges]] | ||
Latest revision as of 09:41, 8 March 2019
How does OLI rigorously calculate TDS?
OLI originally developed the TDS calculation according to parameters set forth in ASTM D5907-03 (American Society of Testing Methods, West Conshocken, PA, United States). Recently this technique was modified to follow the parameters in ASTM D5907-18.
Both techniques heat a 1.0 L of solution of liquid to 180 oC which should remove all the volatile components. The mass remaining is the TDS in mg/L
Occasionally this calculation will fail, especially with solutions that are dilute. In such cases an estimated TDS value is returned which is the sum of all liquid species minus water.
