Materials, Appliances, Systems and Equipment. Characteristics of Materials, Appliances, Systems and Equipment. Absorption trench means an excavation in soil , as defined in Part 8 of Division B, or in leaching bed fill , being part of a leaching bed , in which a distribution pipe or leaching chamber is laid that allows infiltration of the effluent into the soil , as defined in Part 8 of Division B, or leaching bed fill. Acceptable solution means a requirement stated in Parts 3 to 12 of Division B.
Accessible means, when applied to a fixture , connection, plumbing appliance , valve, cleanout or equipment, to be accessible with or without having to first remove an access panel, door or similar obstruction, but a fixture , connection, plumbing appliance , valve, cleanout or equipment is not accessible if access can be gained only by cutting or breaking materials.
Access to exit means that part of a means of egress within a floor area that provides access to an exit serving the floor area. Adaptable seating means a fixed seat or seats designed to facilitate a side transfer from a wheelchair. Additional circuit vent means a vent pipe that is installed between a circuit vent and a relief vent to provide additional air circulation. Adfreezing means the adhesion of soil to a foundation unit resulting from the freezing of soil water. Air admittance valve means a one-way valve designed to allow air to enter the drainage system when the pressure in the plumbing system is less than the atmospheric pressure.
Air barrier system means an assembly installed to provide a continuous barrier to the movement of air. Air break means the unobstructed vertical distance between the lowest point of an indirectly connected waste pipe and the flood level rim of the fixture into which it discharges. Air-conditioning is the process of treating air in a space to control simultaneously its temperature, humidity, cleanliness, and distribution to meet the comfort requirements of the occupants of the space.
Air gap means the unobstructed vertical distance through air between the lowest point of a water supply outlet and the flood level rim of the fixture or device into which the outlet discharges.
