Brick House older drivers tell you the is no TDS penest role
Many online selling pure water, pure water or install old drivers often take TDS pen to test the water quality. Typically, several hundreds of the value of TDS of tap water, pure water was filtered into a 10 or less, the effect is immediate. Here, they say TDS decreased, indicating that the water has been purified, the water quality changed for the better.
a lot of online selling pure water, pure water or install old driver,
often take TDS pen to test the water quality.
Typically, several hundreds of water TDS value, pure water was filtered into a 10 or less, the effect is immediate.
At this time, they will say
TDS decreased, indicating that the water has been purified, the water quality changed for the better.
is it really?
First of all, lets see, TDS is what the hell.
TDS is an acronym for total dissolved solids, and
is translated into Chinese
Total Dissolved Solids
word is translated adults :
is capable of dissolving the various total solid matter in the water.
while the older device drivers Gurley --TDS pen force
is used to measure the three kinds of equipment than the total amount of solid matter in water.
We all know that pure water is not electrically conductive.
those students who do not remember, please go back to school after junior high school chemistry textbook consciously review.
However, once the pure water put salt, can be electrically conductive.
TDS test pen principle is
Measurement of water conductivity, so that the conversion value of TDS in water.
TDS definition outlines a universal law of development of human society 5,000 years since:
a glass of water is not just a glass of water, not just as marriageTwo things.
state regulations, TDS is an indicator of water quality reflects the good and bad.
drinking water must meet the
TDS 鈮?1000 mg / L
Since TDS is not too high, it is not as low as possible?
Of course not.
At present, the water industry there is a consensus,
TDS will affect the taste.
Here, signing a very well-known products, non-home water purification Navy ageekbon, for everyone to do a TDS with taste tasting table.
[Note] taste index represents the personal views only
In summary, just from the taste, the [123 ]
TDS if too low, the taste is very Guadan, drinking is not what taste;
TDS if too high, think much salt in the soup, but also very difficult to drink.
the ideal state is not too much, / between L 100 mg / L to 400 mg.
The question then comes:
What kind of water is good water safe to drink?
like what kind of person to be successful, this is a function with multiple variables.
TDS only affect a particular indicator of water quality, state regulations, indicators such as TDS, a total of 106 kinds.
single standard indicators do not represent the overall compliance.
In fact, as a means for detecting the water quality, the TDS has four defective test:
1, the TDS alone, does not reflect the status of the water contamination of pathogenic microorganisms. This is the most dangerous of drinking water contamination factor.
2 alone TDS, does not reflect the health risks of toxic heavy metals.
3, the TDS alone, does not reflect the level of contamination in water by harmful organisms. Shenma pesticide residues, algae toxins, disinfection by-products are not allowed to TDS pen test.
4, the TDS alone, does not reflect the situation of nitrate water pollution.
there is spare capacity of students, after-school can study
"drinking water health standards" (GB5749-2006), be able to learn more.
those who believe that only a TDS will be able to determine the water quality is good or bad students,
So, TDS pen is there no practical effect yet?
as a home water purifier to absorb a very deep internal forces 20-year-old seniors, ageekbon concluded that:
have a role!
we can take advantage of TDS pen test filter effect.
either ultrafiltration, microfiltration, nanofiltration, RO membrane, the membrane or the membrane
If purify tap water TDS does not change,
but even becomes higher ,
it is likely that
your filter that changed.
World Health Organization (WHO) announced beneficial to human health has six water standards. Wherein the second criterion is "water containing an appropriate proportion of minerals and trace elements, and the presence of ionic state"; The third criterion is "pH value of the weakly basic." Pure water is neutral, free of minerals and trace elements. TDS is too low or even zero, it does not mean that it is beneficial to human health of water.
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