(1) Product Name: The product name of PP-R shall be "PP pipe for hot and cold water or "PP-R pipe for hot and cold water" and "PP-R" or ultra-fine particle modified polypropylene pipe (PP-R). PP-R cold water pipes, PP-R hot water pipes, PP-E pipes, etc. All of the informal names are pseudo PP-R pipes.
(2) The product testing unit is a non-professional unit. The content of the test item does not conform to the content listed in the standard of the PP-R pipe. The product recommendation department or the product promotion department does not understand the PP-R product standard or the department without the PP-R standard. All issued certificates are pseudo-PP-R.
(3) The density of pseudo PP-R is slightly larger than that of PP-R.
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