hydrostatic test


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hydrostatic test

A test to determine if an infant breathed prior to its death. The infant's lungs are put in water; if they float, prior breathing is proven.
See also: hydrostatic
References in periodicals archive ?
Pipeline operators can use the predictive software to make more effective decisions for repair and replacement and reduce the frequency of costly inline inspections or hydrostatic tests.
Systems such as Samson allow small- to medium-size construction companies to come on site with one piece of equipment and knock out the hydrostatic test just like the big boys.
According to assistant project manager Gary Zunkel, P.E., Lake Superior Consulting, "The expansion hydro-test project presented an extreme set of challenges from product displacement with approximately 640,000 bbls of water to conducting six hydrostatic tests simultaneously over a total of 110 miles."
The OnTest service complements handwritten logs and deadweight testers used on conventional hydrostatic tests. It works as a backup to standard methods and gives greater resolution by collecting information on a continuous basis from all instruments, local and remote.
The number of parties with direct involvement of conducting six hydrostatic tests simultaneously and doing this in a safe and coordinated manner further added to the complexity of the project.
20 accident directed the company to perform hydrostatic tests and perform both x-ray and ultrasonic examinations of the pipeline in the vicinity of the Pecos River where the accident occurred.
Under normal soil and climate conditions, when a hydrostatic test leak occurs, there is an immediate drop in pressure and water is released.
* Water disposal following the hydrostatic test program can be a major environment concern.
Another critical consideration is venting the air pocket out of the top of the valve body during the hydrostatic test and in liquids pipelines at start-up.
Because the air is compressible this can give inconsistencies and/or erroneous data in the hydrostatic test report.
The software incorporates important simulation elements such as user-defined hydrostatic tests, operating pressure profiles and attribute inputs (including pipe geometry, material properties and crack geometry) to provide more complete and accurate life prediction, compared to other software solutions.
Separately, the utility has plans to do 95 hydrostatic tests this year, covering 150 miles of its transmission pipe in HCA locations.