| Male pipe thread.
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| Material Safety Data Sheet.
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| Mine Safety and Health Administration.
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| Minimum Stable Signal Point; the best superheat setting which will provide constant, or little change in temperature, at the thermostatic expansion valve temperature sensing element while the system is running.
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| Manufacturers Standardization Society of the Valve Fittings Industry, Inc.
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| 1. Mud rich in humus. 2. Finely blasted rock, particularly from underground.
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| see Mortar Board.
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| The cracks that develop in an emulsion coating that has been applied too thickly.
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| Raising a sunken concrete slab by pumping a slurry under the slab through a hole in the slab.
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| A hand-held container for holding a small quantity of gypsumboard joint compound products; usually the size of a bread pan.
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| 1. A slang term for mortar. 2. A slang term for gypsumboard joint compound products. 3. Any soil containing enough water to make it soft. 4. In rotary drilling, a mixture of water with fine drill cuttings and added material which is pumped through the drill string to clean the hole and cool the bit.
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| sound absorber chamber in refrigeration system; used to rce sound of gas pulsations.
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| A mixture, as of leaves and compost, that covers or is mixed with the earth, often to help enrich the soil; bark, crushed stone or other material used to cover planting beds, retain moisture, rce weeds, and improve appearance.
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| Electrical heating element mounted in a door or window mullion; used to keep mullion from sweating or frosting.
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| A vertical or horizontal bar between adjacent window or door units; the member between the openings of a window frame to accommodate two or more windows.
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| see Porcelain Mullite.
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| A rare mineral of theoretical composition, a relatively stable phase in ceramics produced by the high temperature reaction of alumina and silica or by the thermal decomposition of alumina-silica minerals such as kyanite, sillimanite, andalusite, and various clay minerals.
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| spraying a surface with two or more different colors at one time from one gun. The multiple colors exist separately within the material and when sprayed create an interlacing color network with each color retaining its individuality.
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| A dwelling that will accommodate two or more families.
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| Two or more layers of gypsum board used in an assembly.
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| A carpeting texture or design created by different heights of tufts, either cut or uncut loop.
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| A type of surface or flush electrical raceway designed to hold conductors and attachment plug receptacles, assembled in the field or at the factory.
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| A condition in which a person is considered to be sensitive to a number of chemicals at very low concentrations.
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| A cooperative sales tool among brokers whereby they share their listings and, in the event of a sale, the listing broker and the selling broker share the commission.
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| see Compressor, Multiple Stage.
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| Refrigerating mechanism in which several evaporators are connected to one condensing unit.
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| 1. Filter control valve changing direction of water flow. 2. A valve for various pool filter operations, which combines in one unit the function of two or more single direct flow valves.
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| A wall composed of two or more wythes of masonry.
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| A system providing conditioned air similar to a single-zone system; the temperature and flow of the air supplying each zone is controlled separately; a constant supply of air is supplied to the various zones.
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| 1. A small vertical or horizontal bar between small lights of glass in a sash. 2. The vertical member between two panels of the same piece of panel work.
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