Examples of EDTV sources are: 1  DVD players featuring DVI / HDMI outputs (with built-in HDTV scalars) 2  Video image processors (scalers) 3  Digital cable Set Top Boxes (STB) that offer EDTV service. 4  Digital satellite receivers that offer EDTV service (i.e.
All PEX pipe must meet the same. qualification requirements as specified in the PEX. Standards. Continuous use temperature ratings as high. as 200Â°F (93Â°C) are required as well as standardized. chlorine resistance testing to ensure that the piping will. withstand the most aggressive drinking water conditions.
PEX and water quality by Anonymous. http://www.healthyheating.com/Page%2055/Presentations/How%20Pex%20is%20m... PEX pipe has been around for several decades and has been tested for compliance with NSF/ANSI Standard 61 Toxicological Evaluation for materials in contact with drinking water; health effects.EX, on the other hand, is resistant to acids, better at resisting freezing damage, and doesn't scale or corrode. It's been used in Europe since the 1960s, and even plastic-phobic California embraced PEX.