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Here is a quick hard water ppm chart that gives you a spectrum of water hardness in parts per million (ppm): Scale Of Water Hardness (From Soft To Very Hard Water) The internationally recognized water hardness scale recognizes 4 water hardness classes; from soft, moderately hard, hard, to very hard.
- PPM to GPG
ppm To gpg Water Hardness Chart. We have converted 1 to 1000...
- PPM to GPG
Hardness and Scale Factsheet. Hard water is water that contains calcium and magnesium salts. Water taken from underground boreholes in limestone or chalk rocks tends to be hard, because the naturally occurring calcium and magnesium rock minerals have dissolved into the water.
The average of the water hardness for your area will be shown in the ‘Supply Zone’ report. The hardness of the water is measured as mg/l Ca (milligrams per litre, or parts per million, of calcium). Total hardness can also be expressed in other units of measurement and these may be specified by dishwasher manufacturers.
Water Hardness Description. Grains Per Gallon (GPG) Parts Per Million (PPM) Soft Water. Less than 1.0. Less than 17.1. Slightly Hard.
Water Hardness Scale Table: Classification: Hardness in mg/L; Hardness in ppm. Soft. 0–60. less than 60: Moderately hard 61–120: 60-120 Hard: 121–180 121-180: Author: Jacquelyn Tiffany Created Date:
Hard water is rich in minerals such as calcium and magnesium, which is the cause of “scale” in kettles. Water hardness is usually expressed as the number of parts per million (ppm) of calcium carbonate present in the water (see Table 19).
Hard water is formed when water passes through or over limestone or chalk areas and calcium and magnesium ions dissolve into the water. The hardness is made up of two parts: temporary (carbonate) and permanent (non carbonate) hardness. When water is boiled, calcium carbonate scale can form, which can deposit on things like kettle elements.
