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.
1 When PEX tubing is placed in soil and is used in potable water systems intended to supply drinking water to fixtures or appliances, the tubing or piping shall be sleeved with a material approved for potable water use in soil or other material that is impermeable to solvents or petroleum products. Several studies and articles comparing potable water pipe materials, including variants of PEX, polybutylene, polypropylene, CPVC, copper and steel, have found that PEX, at least initially, displayed the strongest biofilm formation and the strongest promotion of the growth of Legionella bacteria.