The reliability of any NOEL derived from this study should be considered questionable, owing to the presence of infection in all groups. Dogs of undetermined breed or source were given xylazine orally in gelatin capsules for 14-16 weeks at dose levels of 25, 50 or 100 mg/kg bw per day, 5 days/week. The low-dose group consisted of one male and one female, the mid-dose group of two males and the high-dose group of two males and two females.
POLYESTER FIBERS. Polyester fiber is a  manufactured fiber in which the fiber forming substance is any long chain synthetic polymer composed at least 85% by weight of an ester of a dihydric alcohol (HOROH) and terephthalic acid (p-HOOC-C6H4COOH) [3].dditional current U.S. Polyester Fiber Producers are: Acordis Industrial Fibers, Inc.; AlliedSignal Inc; Cookson Fibers, Inc.; KoSa; Intercontinental Polymers, Inc., Martin Color-Fi. Nan Ya Plastics Corp., Wellman, Inc. [24] Dramatic growth in PET fiber production is foreseen in Asia in the near future [22].
Almost all carbon fiber is made from a common industrial fiber called polyacrylanitrile fiber, also known as PAN. Most PAN fiber is used to make acrylic fiber. It is also used to make carbon fiber with a pyrolizing process, which means it is heated to ultra high temperatures to remove all elements except the carbon.Most carbon fiber is sold at this point and it has a tensile modulus of 33 million pounds per square inch (MSI).(Tensile modulus is a measurement of stiffness.) This 33 MSI fiber, if seen up close, looks like a a redwood tree trunk, with deep fissured bark.ost carbon fiber is sold at this point and it has a tensile modulus of 33 million pounds per square inch (MSI). (Tensile modulus is a measurement of stiffness.) This 33 MSI fiber, if seen up close, looks like a a redwood tree trunk, with deep fissured bark.