| Capable of being penetrated; having pores or openings that permit liquids or gases to pass through.
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| A materials resistance to water vapor transmission; the ratio of the rate of water vapor transmission through a material or assembly between its two parallel surfaces to the vapor pressure differential between the surfaces; see Water Vapor Transmission (WVT).
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| An ordered arrangement or grouping of a set of numbers or things; any one of the range of possible groupings.
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| In masonry, a header brick or large stone extending through a wall so that one end appears on each side of the wall and acts as a binder.
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| standing at right angles to the plane of the horizon; vertical.
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| The vertical joints in the face of a wall with all joints directly over one another.
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| Lasting forever.
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| An air sample taken with a sampling pump directly attached to the worker with the collecting filter and cassette placed in the workers breathing zone; these samples are required by the OSHA asbestos standards and the EPA Worker Protection Rule.
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| The ownership of the business by one person; sole ownership or sole proprietor.
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| Any property that is not real property; also called Chattel.
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| An elevator for use by persons at a job site, a building, or structure.
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| The body of people employed in a business or on a project.
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| A drawing on a plane surface that represents an object as it appears to the eye; it cannot be scaled as the lines are foreshortened.
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| Program Evaluation Review Technique.
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| The act or process of the placement of devices or spraying of chemicals or powders to control the spread of insects and pests.
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| A small valve for draining or letting out air.
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| A fund of cash that is established to make minor disbursements and avoid writing checks for small amounts.
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| Bench-like seating in a church.
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| Measure of acidity or alkalinity; pH 7 is neutral; the pH values of acids are less than 7 and of alkalis (bases) greater than 7.
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| Measurement of the free hydrogen ion concentration in an aqueous solution.
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| A room or building devoted to the sale and dispensing of drugs, medical supplies, and related goods.
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| Distinct functional operation during a cycle.
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| The system of applying the felt plies of a built-up roofing membrane in two or more steps, separated by a delay normally of at least one day.
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| A caustic poisonous derivative of benzene present in coal tar and wood tar used in dilute form as an antiseptic and disinfectant.
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| Resins produced from phenols and formaldehyde.
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| Resin based essentially on reaction between phenol and formaldehyde.
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| Finish well suited for fir and other softwoods, which penetrates into pores of wood, dries and equalizes density of hard and soft grains.
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| A dye which is yellow at a pH of 6.8 and turns a progressively deeper red color as the pH increases to 8.4. This is the most commonly used test reagent for pH in swimming pools.
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| The sensing element on a thermostatic expansion valve.
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| A cross-tipped screwdriver for installing screws.
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