Search results
Results from the WOW.Com Content Network
In plumbing a smoke test forces non-toxic, artificially created smoke through waste and drain pipes under a slight pressure to find leaks. [4] Plumes of smoke form where there are defects. This test can be performed when the plumbing is brand new, but more often it is used to find sewer gas leaks that may plague a building or an area. [4]
In a modern time, vacuum testing is performed to check integrity of manholes and identify for leaks. [32] Another common testing method is smoke testing. In this method, sandbags are used to seal a sewer section, then smoke is pumped into a manhole. Any leaks can be observed by visible smoke at the areas of the leaks. [33]
Smoke testing refers to various classes of tests of systems, usually intended to determine whether they are ready for more robust testing. The expression probably was first used in plumbing in referring to tests for the detection of cracks, leaks or breaks in closed systems of pipes. [1] By metaphorical extension the term is used in electronics.
Some significant leaks that do occur are caused by damage from nearby excavation, but most leaks are caused by corrosion and equipment failure and incorrect operation. [1] If a pipeline is not properly maintained, it can corrode, particularly at construction joints, low points where moisture collects, or locations with imperfections in the pipe.
An aspirating smoke detector (ASD) is a system used in active fire protection, consisting of a central detection unit which draws air through a network of pipes to detect smoke. [1] The sampling chamber is based on a nephelometer that detects the presence of smoke particles suspended in air by detecting the light scattered by them in the chamber.
Hydrostatic testing is the most common method employed for testing pipes and pressure vessels. Using this test helps maintain safety standards and durability of a vessel over time. Newly manufactured pieces are initially qualified using the hydrostatic test. They are then revalidated at regular intervals according to the relevant standard.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Smoke testing may refer to: Smoke testing (electrical) looking for smoke when powering electrical items for the first time; Smoke testing (mechanical) the practice of using smoke to test for leaks; Smoke testing (software) trying the major functions of software before carrying out formal testing; Smoke testing, with theatrical smoke and fog ...