![]() However, on the other hand, some objects don't even allow light to pass through. Or there are objects that create an obstruction in the path of light and are not as clear reflector of light as clear glass does. Some objects allow light to pass through clear glass. Various objects that we see around exhibit some property. Some examples are oily paper, tissue, some plastics, etc. Any object, seen through a translucent material, appears fuzzy or blurred. A part of the incident light may get reflected or scattered as it passes through the interior of the material. Translucent materials allow partial transmission of light through them. As a result, light rays cannot pass through opaque materials. Opaque materials either reflect or absorb any incident light. One example of transparent material is pure glass. Any object can be seen through the transparent material. Materials, which allow complete transmission of light, are called transparent. Nuclear medicine technologist means an individual who holds a current certification with the American Registry of Radiological Technologists or the Nuclear Medicine Technology Certification Board.ĭiagnostic source assembly means the tube housing assembly with a beam-limiting device attached.Materials can be classified based on the amount of light they transmit. A thinner, necessary to reduce the viscosity, is not considered a component.Īutomotive Wax, Polish, Sealant or Glaze means a product designed to seal out moisture, increase gloss or otherwise enhance motor vehicle painted surfaces including, but not limited to, products designed for use in auto body repair shops and drive-through car washes, as well as products designed for the general public and excluding automotive rubbing or polishing compounds, automotive wash and wax products, surfactant-containing car wash products and products designed for use on unpainted surfaces such as bare metal, chrome, glass or plastic.įloor coating means an opaque coating that is labeled and designed for application to flooring, including but not limited to, decks, porches, steps, and other horizontal surfaces which may be subject to foot traffic. One-component coating means a coating that is ready for application as it comes out of its container to form an acceptable dry film. Pretreatment coating means a coating which contains no more than 12% solids by weight, and at least 0.5% acid by weight, is used to provide surface etching, and is applied directly to metal surfaces to provide corrosion resistance, adhesion, and ease of stripping. “Undercoating” includes, but is not limited to, rubberized, mastic, or asphaltic products. Undercoating means any aerosol product designed to impart a protective, non-paint layer to the undercarriage, trunk interior, and/or firewall of motor vehicles to prevent the formation of rust or to deaden sound. Polyolefin adhesive means an aerosol adhesive designed to bond polyolefins to substrates. The term does not include a medical device that is surgically implanted, or the replacement of that device. ![]() Such materials include, but are not limited to, paints, varnishes, sealers, and stains.Īssistive technology device means any item, piece of equipment or product system that is used to increase, maintain or improve the functional capabilities of a child with a disability. Roll coating means the application of a coating material to a substrate by means of hard rubber or steel rolls.Ĭoating means a material applied onto or impregnated into a substrate for protective, decorative, or functional purposes. Metal particles are pieces of a pure elemental metal or a combination of elemental metals.Ĭoil coating means the coating of any flat metal sheet or strip that comes in rolls or coils. Metallic coating means a coating which contains more than five grams of metal particles per liter of coating, as applied. Touch-up coating means a coating used to cover minor coating imperfections appearing after the main coating operation. Translucent means a substance that allows light to pass through, but does not allow an object or person to be seen through the substance.
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