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ASTM D7980-15
Standard Guide for Ion-Chromatographic Analysis of Anions in Grab Samples of Ultrapure Water (UPW) in the Semiconductor IndustryMore info
1.1 This guide applies to ultrapure water that is thought to contain low ppt (parts-per-trillion, weight/weight) levels of anionic contaminants (for example, bromide, chloride, fluoride, nitrate, nitrite, phosphate, and sulfate). To minimize carry-over problems between analyses, it is best to limit the concentration of any one contaminant to approximately 200 ppt (although this limit is only an approximation and may vary, depending on the user’s application).
| Author | ASTM |
|---|---|
| Editor | ASTM |
| Document type | Standard |
| Format | File |
| ICS | 71.060.01 : Inorganic chemicals in general |
| Number of pages | 3 |
| Set | ASTMVOL1101 |
| Year | 2015 |
| Document history | |
| Country | USA |
| Keyword | ASTM 7980;ASTM D7980;ASTM D7980;10.1520/D7980-15 |