| Sulfur dioxide emissions combining with water in the atmosphere and falling to the earth.
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| Brick suitable for use in contact with chemicals, usually in conjunction with acid-resistant mortars.
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| A sour substance, one which liberates hydrogen ions in water and is sour and corrosive; will turn litmus red and has a pH of less than 7; acids are generally divided into two classes. (1) strong mineral or inorganic acids such as sulfamic, sulfuric, phosphoric, hydrochloric, or nitric, (2) weak organic or natural acids such as acetic (vinegar), citric (citrus fruit juices), oxalic, and fatty acids (oleic) such as palmitic and stearic.
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| A general term applying to substances on the acid side of neutral.
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| A horizontal work surface resistant to acid spills.
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| A grout that resists the effect of prolonged contact with acids.
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| A calculation of a firms liquidity position; that is the ratio of its quick assets (readily convertible to cash) to current liabilities.
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| Asbestos-Containing Material.
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| A form of insurance certificate issued by Agency Company Organization for Research and Development which has replaced the AIA standard form.
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| Paint which absorbs or deadens sound.
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| 1. Relating to sound or the sense of hearing. 2. The properties of a room or auditorium in transmitting sound.
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| 205 W. Touhy Avenue, Park Ridge, Illinois 60068, (312) 692-5178.
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| A masonry block used for its sound-absorbing qualities.
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| Those capable of absorbing sound waves.
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| Ceiling and wall mounted modular units composed of sound absorbing materials.
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| Sound absorbing finishing materials mill-formulated for application in areas where a rction in sound reverberation or noise intensity is desired; these materials usually are applied to a minimum thickness of 1/2 inch and generally provide a noise rction coefficient of at least .45 decibels.
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| Ceiling panels in board form used for its sound absorbing properties, sometimes used on walls.
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| The act or process of applying acoustical materials to walls and ceilings.
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| Relating to sound or to the sense of hearing.
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| The science of sound including its production, transmission, and effects.
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| Tubing used in air conditioning and refrigeration; ends are sealed to keep tubing clean and dry.
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| 1. A piece of land measuring 43,560 square feet. 2. Unit for measuring land, equal to 43,560 square feet or 4840 square yards or 160 square rods.
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| A volume unit for measuring large quantities of water as in reservoirs and lakes; the amount of water that would cover one acre one foot deep, equal to 43,560 cubic feet.
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| One twelfth of an acre-foot.
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| Air-Conditioning & Refrigeration Institute.
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| The application of gypsum board where the long dimension is applied at right angles to the framing.
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| A carpet made from acrylic fiber composed of synthetic polymers.
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| Plastics based on resins made by the polymerization of acrylic monomers, such as ethyl acrylate and methecrylate.
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| Family of synthetic resins made by polymerizing esters of acrylic acid; synthetic resins of excellent color and clarity used in both emulsion and solvent-based paints.
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| 1. A general class of resinous polymers derived from esters, amides or other acrylic aid derivatives. 2. A transparent plastic material used in sheet form for window glass and skylights.
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