Harmful micro organisms present in blood or other potentially infectious materials, which could cause disease or death in humans. Included among these micro organisms are hepatitis B virus (HBV) and human immunodeficiency virus (HIV).
1. A positive displacement vacuum pump. 2. A high-speed drying unit. see _air mover_
A type of acoustic plaster applied by a spray process.
A white or cloudy cast on high-gloss paint or transparent finish. May be caused by improper preparation, entrapped moisture, high humidity or heat.
The temporary installation of barriers to secure roofs, windows, doors and other penetrations against intrusion or weather.
A device that can be inserted at an access point to focus on and view inaccessible surfaces, such as interior walls of ductwork. A monitor or camera can be attached to pictorially document internal surface conditions.
Also sole plate. A horizontal timber which serves as a base for the studs in a stud wall or partition.
Water or _saps_ contained within the cell walls of structural wood materials. Bound moisture is given off gradually as the wood dries and it has a marked effect on how the wood will stain.
The layered air mass separating the surface of a material from ambient air. A saturated boundary layer at the surface of a wet material will inhibit additional evaporation from that surface unless it is _swept_ away continuously by air movers.
A metal or wood member which is used to stiffen or support an assembly or structure; a strut which supports or fixes another member in position.