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| The colour intensity of filtered water, measured at 455 nm, is compared to the intensity of a diluted solution of cobalt(II) chloride and potassium hexachloroplatinate and is a measure for the colour intensity. The natural colour comes among other things from humic compounds, iron salts and manganese salts. |
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| Matrices qualified by the Dutch RvA: | Drinking water, Surface water |
| Reporting limit: | 5 mg Pt-Co/l, matrix dependent |
| Measurement uncertainty: | 30% |
| Sustainability: | 5 days
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| Sampling bottle: | Glass
, brown
, 100 ml
(fill up to cap)
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