CorrosionThe destruction of a material or its properties because of a reaction with its (environment) surroundings. index established by the American Water Works Association (AWWAAmerican Water Works Association) Standard C-400; established as a criterion for determining the corrosive tendency of the water relative to asbestos-cement pipe; calculated from the pHA measure of the acidity or alkalinity of a solution. A value of seven is neutral; low numbers., calcium hardness (H), and total alkalinity (A) by the formula AI = pH + log (A * H).
The written agreement between the owner and the contractor covering the work to be performed; the contract documents are attached to and made a part of the agreements. Also designated as the contract.
The capacity of a water to neutralize acids; a measure of the buffer capacity of a water. The major portion of alkalinity in natural waters is caused by (1) hydroxide, (2) carbonates, and (3) bicarbonates.
An oxide of aluminum present in clay.
Asset Management Plan; a structured approach for utilities to achieve long term defined service standards – or – an external bearing used to isolate the final drive from the thrusting force of the machine.
