hydrostatic head


Also found in: Dictionary, Thesaurus, Wikipedia.

hydrostatic head

The pressure in a fluid at a given point expressed in terms of the vertical height of the liquid column above that point which would produce the same pressure.
References in periodicals archive ?
Doran, technical support engineer with Foxboro, says the electronic hydrostatic head sensors have a high degree of accuracy in measuring the fluid level in a tank as long as the density of the liquid does not change dramatically due to temperature or compositional changes.
For example, while AAMI level two protection requires a spray impact of less than one gram and a statistically significant minimum of 20 cm of hydrostatic head, AAMI level three requires these fabrics to have a Spray Impact Test result of less than one grains and a minimum 50 cm hydrostatic head based on multiple samples from three different lots for statistical purposes.
These advantages include hydrostatic head, alcohol repellency, static decay and spray impact performance, Goldman adds.
Testing equipment manufacturer Textest, Zurich, Switzerland, has introduced the FX 3000-III automatic hydrostatic head tester hydrotester.
The membrane also features a hydrostatic head of greater than 12cm, a Gurley Hill porosity of greater than 10 seconds, a moisture vapor transmission rate, measured by the LYSSY method of 25g/m2/day.
This fine denier spunbond fabric of 17 gsm reaches 100-140 mmH2O hydrostatic head, which complies with most of the market requirements for barrier leg cuffs with no melt blown layer between two spunbond layers.
It also has a hydrostatic head of at least 60 cm and has a moisture vapor transmission rate, according to the desiccant method, of at least 2800 grams per [meter.