2. "Smell"
Are unscented. PP-R pipe main material is polypropylene, a good pipe does not smell bad there funny smell, it is willing to be a blending of the polyethylene, polypropylene instead.

3. "Pinch"
PP-R pipe has a considerable hardness, as can be easily deformed shape into the tube, definitely not the PP-R pipe.

4. "Crushed"
A good PP-R pipe, "elasticity" Well, of course, not too easy to smash a good PP-R pipe. However, hardness does not equal good elasticity, about how things are not smashed to pieces PP-R pipes, consumer should be left uncertain. Because some unscrupulous manufacturers by adding excess calcium carbonate and other impurities to improve the hardness of tubes, such tubes for a long time prone to brittle fracture.

5. "Burning"
Ignition a burn, it is also very useful and intuitive. In a mixture of raw materials and other impurities of recycled plastic PP-R pipe will be black smoke, with pungent odor; good material combustion not only not black smoke, odor, burning after the melt out of the liquid is still very clean.

PP-R pipe true and false identification:

1. Product Name: PP-R product name should be "hot and cold water pipes with polypropylene or" PP-R cold and hot water pipe "where the labeled ultra-fine particles modified polypropylene tubes (PP-R) or PP -R cold-water pipes, PP-R hot water pipes, PP-E tubes, etc., are non-formal name of the pseudo-PP-R pipe.

2. Product Testing Unit is a non-professional units, test items content and PP-R pipe does not match the standard set out in the content, products, or products recommended departmental promotion department, for PP-R product standards do not understand or without PP-R standard departments Certificates are issued by pseudo-PP-R.

3. Pseudo-density of PP-R slightly larger than the PP-R.

4.PP-R pipe matte white or other colors of the matte, pseudo-PP-R pipe shiny bright or vibrant color.

5.PP-R pipe completely opaque, pseudo-PP-R pipe slightly translucent or semi-translucent.

6.PP-R pipe soft touch, pseudo-PP-R pipe feel smooth.

7.PP-R pipe landing sound more boring, PPR pipe landed a more crisp sound