Hanna Instruments HI3812 Hardness Test Kit - Range (0.0-30.0 mg/L) (0-300 mg/L)
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Average Customer Review
2 voted
| MFG Part # | HANNA INSTRUMENTS HI3812 |
| Condition | New |
| Our price | $23.00 |
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Hardness in water is mainly due to the presence of Calcium and Magnesium ions and each contributes to the amount of total hardness. Monitoring and controlling hardness is instrumental in order to prevent scaling and corrosion.
Water is categorized as very soft (0-70 mg/L), soft (70-150 mg/L), slightly hard (150-250 mg/L), moderately hard (250-320 mg/L), hard (320-420 mg/L) and very hard (420 mg/L and above), according to the hardness scale. HANNA®' kits cover all of these ranges.
HANNA® offers the HI 3840-S, HI 3841-S and HI 3842-S chemical test kits packed in sachets offering a low cost alternative.
(5 of 5)
"It does exactly what I wanted: to test the softening effects of my system."
Application: Testing my home water supply after installing a $7K water softening system and reverse osmosis system.
Frisco, TX - 07/09/2009
(4 of 5)
"Very easy to use."
Application: Testing home water.
Santa Barbara, CA - 06/05/2009
