Highland Spring Boxed Still Spring Water, 10L

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National Institute of Standards and Technology (11 November 2000). "Appendix C: General tables of units of measurement". NIST Handbook 44: Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices. National Institute of Standards and Technology. Archived from the original on 10 December 2011 . Retrieved 9 October 2006.

In 1964, at the 12th CGPM conference, the original definition was reverted to, and thus the litre was once again defined in exact relation to the metre, as another name for the cubic decimetre, that is, exactly 1dm 3. [5] One litre is slightly larger than a US liquid quart and slightly less than an imperial quart or one US dry quart. A mnemonic for its volume relative to an imperial pint is "a litre of water's a pint and three-quarters"; this is very close, as a litre is about 1.7598pints. The abbreviation "cc" (for cubic centimetre, equal to a millilitre or mL) is a unit of the cgs system, which preceded the MKS system, which later evolved into the SI system. The abbreviation "cc" is still commonly used in many fields, including medical dosage and sizing for combustion engine displacement. Bureau International des Poids et Mesures (2006). "The International System of Units (SI)" (PDF) . Retrieved 18 August 2008.

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Burtis, Carl A.; Bruns, David E. (2014). Tietz Fundamentals of Clinical Chemistry and Molecular Diagnostics (7.ed.). Elsevier Health Sciences. p.114. ISBN 9780323292061. a b Bureau International des Poids et Mesures, 2006, p. 124. ("Days" and "hours" are examples of other non-SI units that SI accepts.) Free XGT 40V Max Brushless Blower (Battery & charger not included) or XGT 40V Max Kettle (Battery & charger not included) One litre of water has a mass of almost exactly one kilogram when measured at its maximal density, which occurs at about 4°C. It follows, therefore, that 1000th of a litre, known as one millilitre (1 mL), of water has a mass of about 1g; 1000litres of water has a mass of about 1000kg (1 tonne or megagram). This relationship holds because the gram was originally defined as the mass of 1mL of water; however, this definition was abandoned in 1799 because the density of water changes with temperature and, very slightly, with pressure.

a b International Bureau of Weights and Measures (2006), The International System of Units (SI) (PDF) (8thed.), p.124, ISBN 92-822-2213-6, archived (PDF) from the original on 4 June 2021 , retrieved 16 December 2021 . Not sure what product you need, Call Tom on 01843 842727 who will be able to help in your choice. Guarantee Terms From 1901 to 1964, the litre was defined as the volume of one kilogram of pure water at maximum density (+3.98°C) [ citation needed] and standard pressure. The kilogram was in turn specified as the mass of the International Prototype of the Kilogram (a specific platinum/iridium cylinder) and was intended to be of the same mass as the 1litre of water referred to above. It was subsequently discovered that the cylinder was around 28 parts per million too large and thus, during this time, a litre was about 1.000 028dm 3. Additionally, the mass–volume relationship of water (as with any fluid) depends on temperature, pressure, purity and isotopic uniformity. In 1964, the definition relating the litre to mass was superseded by the current one. Although the litre is not an SI unit, it is accepted by the CGPM (the standards body that defines the SI) for use with the SI. CGPM defines the litre and its acceptable symbols. It is now known that the density of water also depends on the isotopic ratios of the oxygen and hydrogen atoms in a particular sample. Modern measurements of Vienna Standard Mean Ocean Water, which is pure distilled water with an isotopic composition representative of the average of the world's oceans, show that it has a density of 0.999 975 ±0.000 001kg/L at its point of maximum density (3.984°C) under one standard atmosphere (101.325 kPa) of pressure. [6] SI prefixes applied to the litre [ edit ]Taylor, B.N. and Thompson, A. (2008b). Guide for the Use of the International System of Units (Special Publication 811). Gaithersburg, MD: National Institute of Standards and Technology. Retrieved 2008-08-23. The original decimetre length was 44.344 lignes, which was revised in 1798 to 44.3296 lignes. This made the original litre 1.000 974 of today's cubic decimetre. It was against this litre that the kilogram was constructed. The International System of Units (SI)" (PDF). 2006. p.124. Archived from the original (PDF) on 14 August 2017 . Retrieved 20 February 2021. Unicode Consortium (2019). "The Unicode Standard 12.0 – CJK Compatibility ❰ Range: 3300—33FF ❱" (PDF). Unicode.org . Retrieved 24 May 2019.

Isotopic composition and temperature per London South Bank University's "List of physicochemical data concerning water", density and uncertainty per NIST Standard Reference Database Number 69 (Retrieved: 2010-04-05). In 1979, at the 16th CGPM conference, the alternative symbol L (uppercase letter L) was adopted. It also expressed a preference that in the future only one of these two symbols should be retained, but in 1990 said it was still too early to do so. [11] Everyday usage [ edit ]The litre, though not an official SI unit, may be used with SI prefixes. The most commonly used derived unit is the millilitre, defined as one-thousandth of a litre, and also often referred to by the SI derived unit name "cubic centimetre". It is a commonly used measure, especially in medicine, cooking and automotive engineering. Other units may be found in the table below, where the more often used terms are in bold. However, some authorities advise against some of them; for example, in the United States, NIST advocates using the millilitre or litre instead of the centilitre. [7] There are two international standard symbols for the litre: L and l. In the United States the former is preferred because of the risk that (in some fonts) the letter l and the digit 1 may be confused. [8] Multiple The litre was introduced in France in 1795 as one of the new "republican units of measurement" and defined as one cubic decimetre. [14] In 1901, at the 3rd CGPM conference, the litre was redefined as the space occupied by 1kg of pure water at the temperature of its maximum density (3.98°C) under a pressure of 1 atm. This made the litre equal to about 1.000 028dm 3 (earlier reference works usually put it at 1.000 027dm 3).