An autoantibody is an antibody (a type of protein) produced by the immune system that is directed against one or more of the individual's own proteins. Many autoimmune diseases (notably lupus erythematosus) are caused by such autoantibodies.
Perfluorooctanoic acid (PFOA), also known as C8 and perfluorooctanoate, is a synthetic perfluorinated carboxylic acid and fluorosurfactant.FOA has widespread applications. In 1976, PFOA was reported as a water and oil repellent in fabrics and leather and in the production of floor waxes and waxed papers ; however, it is believed that paper is no longer treated with perfluorinated compounds, but with fluorotelomers with less than 0.1% PFOA.
Forane Â® 408A refrigerant (R-408A) is a low-ozone depleting, near-azeotropic HCFC-containing blend of R-22, R-125, and R-143a, designed to match the performance of R-502.Forane Â® 408A is a retrofit solution for medium and low temperature refrigeration systems that are currently using R-502.R-408A should not be mixed with R-502 or used to top off the charge of an existing system operating on R-502.R-408A is not intended for use in new equipment.R-408A contains an HCFC and, as an ozone depleting refrigerant, is subject to phase out according to the Montreal Protocol international treaty and the Clean Air Act in the United States.-408A is not intended for use in new equipment. R-408A contains an HCFC and, as an ozone depleting refrigerant, is subject to phase out according to the Montreal Protocol international treaty and the Clean Air Act in the United States.