Water Hardness Pack Test

Water Hardness Pack Test

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Product Details




Measuring range


Water hardness test tube


DSC_0148 (2)

Operation methods:

(1) Remove the line to   clear the aperture from the top of the tube.

(2) Press the sides of the tube to expel approximately half of volume. Maintain pressed.

(3) Immerse the tube in the sample. Release the sides to fill the tube up to the half. Shake the tube a few 


4) After the reaction time (see back of the page), put the tube on the color chart as shown and compare with the standard colors.

The reaction time must be respected to get a right measurement. It depends on the temperature of the sample. After the specified time, compare the color of the tube with the standard colors. The nearest color indicates the total hardness of the sample. A color between two standard colors indicates a value between the two standard values.



50pack tests/box 

Packing list

50 pack test

1 color chart

Other products:

Total hardness test strip 

Total hardness test kit

Total hardness test tube

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