For determination of oxygen scavengers by the iron reduction method. Hach method 8140 determines carbohydrazide, diethylhydroxylamine (DEHA), hydroquinone, iso-ascorbic acid (erythorbic acid) and methylethylketoxime. 100 mL
| Method Name | Iron Reduction |
| Method Number | 8140 |
| Number of tests | 100 |
| Parameter | Oxygen Scavengers |
| Platform | Solution |
| Range | Varies |

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