HACH LANGE Pocket Colorimeter II Single Manuel D'utilisation page 22

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Figure 8 Install the instrument cap over the cell holder
Sample collection
• Collect samples in clean glass or plastic bottles.
• Rinse the sample bottle several times with the sample to be
collected.
• Analyze the samples as soon as possible for best results.
• Homogenize samples that contain solids to get a representative
sample.
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