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A Coin To Identify True And False PPR Tubing

- Nov 24, 2017 -

PPR Tube also called the three-type polypropylene tube, also is the hot and cold water pipe, is the necessary material for home decoration. Some businesses in order to reduce costs, in the production of PPR Tube, adding 2000 to 3000 yuan per meal of calcium carbonate, such poor quality products are easy to aging, short life. Here's the star tube industry to teach you how to use a coin to distinguish the PPR tube from True and false.

2004 years later, the standard weight of a dollar coin is 6 grams, and the PPR tube is intercepted for a short period of time, to ensure that the experimental PPR tube is 60 grams, is 10 times times the weight of the coin, and then cut a small mouth on the PPR tube, the coin card up, and then prepare a basin of water, the coin-stuck PPR tube in the water, If the PPR tube floats on the surface of the water, it means that it is true, and if it sinks in, the PPR tube is doped with calcium carbonate and other impurities.

Will someone ask if this is scientifically based? In fact, the principle is very simple: the proportion of water is 1, the real PPR tube proportion between 0.9-0.91, will not sink into the water. and the proportion of calcium carbonate is more than 2.7, once the PPR tube mixed with calcium carbonate, the proportion will be increased, PPR tube and coins weight ratio is 10:1, put on the water, the true PPR Tube will not sink.

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