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  2. Water testing - Wikipedia

    en.wikipedia.org/wiki/Water_testing

    Water testing is a broad description for various procedures used to ... The program was originally called "World Water Monitoring Day" and later "World Water ...

  3. Hydrometer - Wikipedia

    en.wikipedia.org/wiki/Hydrometer

    It has notches in a perpendicular line, by means of which we are able to test the weight of the waters. A cone forms a lid at one of the extremities, closely fitted to the tube. The cone and the tube have one base only. This is called the baryllium. Whenever you place the tube in water, it remains erect.

  4. Hydrostatic test - Wikipedia

    en.wikipedia.org/wiki/Hydrostatic_test

    The test involves filling the vessel or pipe system with a liquid, usually water, which may be dyed to aid in visual leak detection, and pressurization of the vessel to the specified test pressure. Pressure tightness can be tested by shutting off the supply valve and observing whether there is a pressure loss.

  5. Water metering - Wikipedia

    en.wikipedia.org/wiki/Water_metering

    Water metering is the practice of measuring water use. Water meters measure the volume of water used by residential and commercial building units that are supplied with water by a public water supply system. They are also used to determine flow through a particular portion of the system.

  6. Moisture meter - Wikipedia

    en.wikipedia.org/wiki/Moisture_meter

    Measuring water leakage in exterior wall with Trotec T660 Moisture Measuring Device, using dielectric measurement method (indicative). Moisture meters are measuring instruments used to measure the percentage of water in a given substance, as physical properties are strongly affected by moisture content and high moisture content for a period of time may progressively degrade a material.

  7. Water flow test - Wikipedia

    en.wikipedia.org/wiki/Water_flow_test

    One hydrant is known as the residual hydrant or test hydrant and is located on or near the water main where a new water connection is desired. From this test hydrant, a static pressure and a residual pressure will be measured. The other hydrant, known as the flow hydrant, is usually the nearest hydrant away from the test hydrant.

  8. Water quality - Wikipedia

    en.wikipedia.org/wiki/Water_quality

    Environmental water quality, also called ambient water quality, relates to water bodies such as lakes, ... as far as water quality testing is concerned, ...

  9. pH meter - Wikipedia

    en.wikipedia.org/wiki/PH_meter

    Beckman Model M pH Meter, 1937 [1] Beckman model 72 pH meter, 1960 781 pH/Ion Meter pH meter by Metrohm. A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH. [2]