Bio Concentration Factor: ratio between the concentration in an organism and the concentration in an environmental compartment (waterborne exposure only).
Found on http://www.eurochlor.org/mainglossary
Bulked continuous filament. Continuous strands of synthetic fiber formed into yarn bundles of a given number of filaments and texturized to increase bulk. Texturizing comprises changing the straight filaments into kinked or curled ones for added volume. Found on http://www.camelotcarpetmills.com/glossary_of_terms