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Standard
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DIN 38409-20:1989-07
German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of substances that react with disulfine blue (H 20)
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Summary
The standard describes a method for the determination of the disulfine blue active substances (softeners) in water. The cationic surfactants are isolated and enriched and the extinction is to measure at 628 mm.
Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 07/01/1989 |
| Cancellation Date | 12/01/2015 |
| Page Count | 12 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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