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Dialysis tubing, also known as Visking tubing, is an artificial semi-permeable membrane tubing [1] used in separation techniques, that facilitates the flow of tiny molecules in solution based on differential diffusion.
A tube and pipe may be specified by standard pipe size designations, e.g., nominal pipe size, or by nominal outside or inside diameter and/or wall thickness. The actual dimensions of pipe are usually not the nominal dimensions: A 1-inch pipe will not actually measure 1 inch in either outside or inside diameter, whereas many types of tubing are ...
Dialysis tubing is used in hemodialysis to purify blood in the case of kidney failure. The tubing uses a semipermeable membrane to remove waste before returning the purified blood to the patient. [15] Differences in the semipermeable membrane, such as size of pores, change the rate and identity of removed molecules.
An antitrust ruling forced the sale of the polyethylene business of Visking to Ethyl Corporation in 1963. Ethyl, known best for its tetra ethyl lead gasoline additive, renamed the division VisQueen. In 1989, Ethyl Corporation, desiring to concentrate on chemical manufacture, spun off VisQueen as a new company, Tredegar Film Products Corporation.
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Piping or tubing is usually inserted into fittings to make connections. Connectors are assigned a gender, abbreviated M or F. An example of this is a " 3 ⁄ 4 -inch female adapter NPT ", which would have a corresponding male connection of the same size and thread standard (in this case also NPT).
Dated: Jung 2-; 2011 Respectfully submitted, S & RICH SON omas M. M Isheimer Texas State Bar No. 13922550 M. Brett Johnson Texas State Bar No. 00790978
Tygon Fuel and Lubricant Tubing F-4040-A is translucent yellow for positive identification and flow monitoring. It is used in small engine fuel lines, recreational vehicles, and lubrication lines. Tygon LP1100 is a low permeation EPA and CARB certified fuel line [4] also used in small engines. Tygon R-3400 UV Resistant Tubing is