Nederland

2021.03.11

 
Place TDS
ppm
pH

Chlorine Residual

ppm

Hard Water
ppm

Turbidity

NTU

Water Pressure Date
RAI Exhibition Hall Amsterdam 300 7.23 0 66 0   Nov,20,2023
Amsterdam,Giethoorn 197 7.1 0 112 0.69   Nov,20,2023
Amsterdam Airport Schiphol 294 7.18 0 102 0   Nov,20,2023
Heineken Experience Amsterdam  290 6.98 0 109 0   Nov,20,2023
Station Amsterdam Centraal 300 7.22 0 138 0   Nov,20,2023
Cheese Farm Catharina Hoeve Zaandam,Nederland 296 7.08 0 119 0   Nov,20,2023
ibis budget Amsterdam City South 270 8.05 0.1 135 5.92 4kg/cm2 Jan 7, 2018
Ferdinand Bolstraat 32  020-2614864 297 8.02 0.1 145 0   Jan 7, 2018
Ada Restaurant 343 7.79 0.04   1.41   Nov 14, 2015
Centraal Station 344 7.89 0.04   1.95   Nov 14, 2015
Dam Aquare 341 7.77 0.04   1.79   Nov 14, 2015
Amsterdam Airport Schiphol 294 7.98 0.01 100↑ 0 2.5kg/cm2 Mar 5, 2015
Mercure Hotel 245 7.8 0   0   Nov 10, 2011


 
Place TDS
ppm
pH

Chlorine Residual

ppm

Hard Water
ppm

Turbidity

NTU

Date
Bg Alblasser Dam Holland 266 8.2 0.06   1.21 Feb 18,2017

 



TDS
(Total dissolved solids)


Total dissolved solid (TDS) is a measure of the combined total of organic and inorganic substances contained in a liquid. This includes anything present in the water other than the pure H20 molecules. These solids are primarily minerals, salts and organic matter that can be a general indicator of water quality. Therefore, High TDS means many substances in the water.

Unitparts per million (ppm).
 

 
pH
hydrogen ion concentration


In chemistry, pH is a measure of the acidity or basicity of an aqueous solution.

 

Chlorine Residual 

That portion of the total available chlorine residual remaining in water or wastewater at the end of a specified contact period. Chlorine residual will react chemically and biologically as hypochlorous acid (HOCl) or hypochlorite ion (OCl–). This does not include chlorine that has combined with ammonia, nitrogen, or other compounds.

1. At 30 minutes after the addition of sodium hypochlorite there should be no more than 2.0 mg/L of free chlorine residua l present (this ensures the water does not have an unpleasant taste or odor).

2. At 24 hours after the addition of sodium hypochlorite to containers that are used by families to store water there should be a minimum of 0.2 mg/L of free chlorine residual present (this ensures microbiologically clean water).

Hard Water

Hardness is caused by compounds of calcium and magnesium, and by a variety of other metals. Water is an excellent solvent and readily dissolves minerals it comes in contact with. As water moves through soil and rock, it dissolves very small amounts of minerals and holds them in solution. Calcium and magnesium dissolved in water are the two most common minerals that make water "hard."

Turbidity

Turbidity is the measure of relative clarity of a liquid. It means the cloudiness or haziness of a fluid caused by large numbers of individual particles. It is an optical characteristic of water and is an expression of the amount of light that is scattered by material in the water when a light is shined through the water sample. The higher the intensity of scattered light, the higher the turbidity. That measurement of turbidity is important test of water quality.