Sample water: how to get the right results?
Through the correct sampling, the final consequence of the analyzes is quite subject. It is impossible to simply dial a liquid from a pipe or a tap and transfer it to the appropriate institution. Excellent, if the staff of the Sanitary and Epidemiological Station will inquire how you recruited water, and will send you with advice due to the newest portion. However, it may happen that your container will be accepted without any questions and will perform a full decomposition on the basis of this. Not enough that he does not quite meet reality, for no reason you will start to fight again with non-existent problems of pollution. Although the main issue is the wrong sampling. In order to avoid similar incidents, follow the following rules of water intake:
It is impossible to take iron flasks for the sake of tare. Only glass and food plastic are allowed.
Bottles can exist in the household, but only through the mineral water. From the drinks, the packaging will not work, because they are used by stable dyes and preservatives that can be planted for internal walls and not washed off even after rinsing with boiling water.
The highest tare value is less than 1.5 liters.
The bottle is rinsed a couple of times with hot water (glass-boiling water), and the final one is rinsed with water from the tap, which you will take for the sake of analysis. At the same time, it is forbidden to use any chemical cleaners, even soda, as they may not be washed and change the total of the samples.
Before taking the sample, you must let the water drain for 20 minutes. Thus, you will pluck probable stagnation in the pipes and together get rid of the metal particles (if you have a pipeline of iron).
In order to get water into the bottle did not get oxygen deprived, a daring side chemical reaction, turn on the tap very weakly. Let the fluid flow down like a slow, narrow stream.
The container is filled"under the throat". If you cover the cork, it is necessary that the water even poured out a little. That way you get rid of the air left inside.
The prepared bottle is tightly wrapped in a dark part for the sake of light and is taken for the release of 3 coming hours. If you are for a dacha, and now it's a day off, then in the same package you need to put the container in the fridge and own it before surrender, but less than 2 days.
This is the decomposition of the water by the owners of the freshly dug well, which is delivered in an indefinite order, and those that already use the source - once in 2 g. However, if you saw that the hole has started to offer muddy water or foreign tastes have appeared - always send liquid for decomposition , without cause, whether two years have passed or not. Sewage run-off or industrial emissions penetrating groundwater can be initiated by poisoning. In circulating osmosis, a number of filtering parts come in, any of which relieves certain impurities, and a membrane that holds out continuously, which has a magnitude larger than the water molecule
Only if your water discharge supplies water with an overestimated content of salts or nitrates, then reverse osmosis is an unprecedented method to solve this problem.
Proudly! Some experts do not recommend swallowing water, purified by reverse osmosis, daily, because it is deprived of not only harmful, but all necessary substances, i.e. sterile. They advise to solve the difficulties of water point-by-point, installing filters that neutralize the specific contamination: bacteria, iron, salts, etc. Such systems are purposely filtered, not"matching the path"and useful microelements. Continuous cleaning of the well itself contributes to the maintenance of water properties. Do not allow it to wash with sand and silt, also try to match the ability to accurately update the water in the pipes. If you live to give summer in summer, then at least one day in a month come to lower the stagnant liquid.
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