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  2. Purified water - Wikipedia

    en.wikipedia.org/wiki/Purified_water

    The conductivity of water is measured in Siemens per meter (S/m). Sea-water is typically 5 S/m, [5] drinking water is typically in the range of 5-50 mS/m, while highly purified water can be as low as 5.5 μS/m (0.055 μS/cm), a ratio of about 1,000,000:1,000:1. Purified water is used in the pharmaceutical industry.

  3. Ultrapure water - Wikipedia

    en.wikipedia.org/wiki/Ultrapure_water

    Ultrapure water (UPW), high-purity water or highly purified water (HPW) is water that has been purified to uncommonly stringent specifications. Ultrapure water is a term commonly used in manufacturing to emphasize the fact that the water is treated to the highest levels of purity for all contaminant types, including: organic and inorganic compounds; dissolved and particulate matter; volatile ...

  4. Drinking water quality standards - Wikipedia

    en.wikipedia.org/wiki/Drinking_water_quality...

    For countries without a legislative or administrative framework for such standards, the World Health Organization publishes guidelines on the standards that should be achieved. [ 3 ] Where drinking water quality standards do exist, most are expressed as guidelines or targets rather than requirements, and very few water standards have any legal ...

  5. Drinking Water Directive 2020 - Wikipedia

    en.wikipedia.org/wiki/Drinking_Water_Directive_2020

    EU drinking water standards and cases where these standards are temporarily exceeded by a small margin should be interpreted in this context. Articles 8 to 13 set out requirements on member states to regularly monitor the quality of water intended for human consumption by using the methods of analysis specified in the directive, or equivalent ...

  6. Water quality - Wikipedia

    en.wikipedia.org/wiki/Water_quality

    The most common standards used to monitor and assess water quality convey the health of ecosystems, safety of human contact, extent of water pollution and condition of drinking water. Water quality has a significant impact on water supply and often determines supply options.

  7. Water (data page) - Wikipedia

    en.wikipedia.org/wiki/Water_(data_page)

    The saturated vapor pressure over water in the temperature range of −100 °C to −50 °C is only extrapolated [Translator's note: Supercooled liquid water is not known to exist below −42 °C]. The values have various units (Pa, hPa or bar), which must be considered when reading them.

  8. Ice Mountain (water) - Wikipedia

    en.wikipedia.org/wiki/Ice_Mountain_(water)

    Ice Mountain is a brand of bottled water from BlueTriton Brands, produced and marketed primarily in the Midwest region of the United States, first introduced to the public in 2002. [2] Ice Mountain sources their water from two groundwater wells at Sanctuary Spring in Mecosta County, Michigan and/or Evart Spring in Evart, Michigan .

  9. Distilled water - Wikipedia

    en.wikipedia.org/wiki/Distilled_water

    Bottle for distilled water in the Real Farmacia in Madrid. Distilled water is water that has been boiled into vapor and condensed back into liquid in a separate container. Impurities in the original water that do not boil below or near the boiling point of water remain in the original container. Thus, distilled water is a type of purified water.

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