ICT is made up of information technology (storage tanks) and communications technology (pipes). Information (stored water) is stored using information technology (storage tanks) and a communication (flowing water) reaches the recipient through communications technology (pipes).
The Brinell hardness test is commonly used to determine the hardness of materials like metals and alloys. The test is achieved by applying a known load to the surface of the tested material through a hardened steel ball of known diameter. The diameter of the resulting permanent impression in the tested metal is measured and the Brinell Hardness Number is calculated as. BHN = 2 P / (Ï D (D - (D2 - d2)1/2)) (1). where.
The first step in properly sizing your softener is to calculate your daily softening requirement. This is simply a measure of how much hardness your softener will have to remove daily. Daily softening requirement is calculated using your water hardness info and your water consumption. Water Hardness. This is the measure of how much calcium and magnesium is dissolved in your water.