User Manual Q&AAnswer
Feb 23, 2025 - 08:28 PM
To perform a colorimetric test for silica using the MACHEREY-NAGEL Visocolor ECO Silica Test Kit, follow these steps:
1. Pour a 5 mL water sample into each of the measuring glasses using the plastic syringe provided.
2. Place one measuring glass on position A in the comparator.
3. Add 5 drops of SiO2-1 reagent to the measuring glass on position B. Seal the glass and mix. Wait for 3 minutes.
4. Add 5 drops of SiO2-2 reagent to the measuring glass on position B. Seal the glass and mix. Wait for 1 minute.
5. Add 5 drops of SiO2-3 reagent to the measuring glass on position B. Seal the glass and mix.
6. Open the glass after 15 minutes and place it on position B in the comparator.
7. Slide the comparator until the colors in the inspection hole on top match. Check the measurement reading in the recess on the comparator reed. Mid-values can be estimated.
8. After use, rinse out both measuring glasses thoroughly and seal them.
Note: The reagents provided in the kit are also suitable for photometric evaluation. The method can also be applied for the analysis of sea water.
For more detailed instructions and safety information, please refer to the instruction manual provided with the test kit. Additionally, information on safety and disposal can be found in the safety data sheet, which can be downloaded from www.mn-net.com/SDS.
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