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View larger ASTM D6238-98(2017)
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ASTM D6238-98(2017)
Standard Test Method for Total Oxygen Demand in WaterMore info
1.1 This test method covers the determination of total oxygen demand in the range from 100 to 100 000 mg/L, in water and wastewater including brackish waters and brines (see 6.5). Larger concentrations, or samples with high suspended solids, or both, may be determined by suitable dilution of the sample.
1.1.1 Since the analysis is based on the change in oxygen reading of the carrier gas compared to that when a sample is introduced (see 4.1), the measurement range is a function of the amount of oxygen in the carrier gas. The higher the desired concentration range, the more oxygen required in the carrier gas. Under recommended conditions, the carrier gas concentration should be between two to four times the maximum desired oxygen demand.
| Author | ASTM |
|---|---|
| Editor | ASTM |
| Document type | Standard |
| Format | File |
| Confirmation date | 2017-12-15 |
| ICS | 13.060.50 : Examination of water for chemical substances |
| Number of pages | 7 |
| Replace | ASTM D6238-98(2011) |
| Set | ASTMVOL1102 |
| Year | 1990 |
| Document history | ASTM D6238-98(2011) |
| Country | USA |
| Keyword | ASTM 6238;ASTM D6238;ASTM D6238;10.1520/D6238-98R17 |