, In 1979, at the 16th CGPM conference, the alternative symbol L (uppercase letter L) was adopted. … When they are preceded by a figure, t… Inspiration. A cubic decimetre (or litre) occupies a volume of 10 cm × 10 cm × 10 cm (see figure) and is thus equal to one-thousandth of a cubic metre. One milliliter is 0.001 liter. Examples: meter, liter, and deka, NOT metre, litre, and deca. It is equal to 1 cubic decimetre (dm3), 1000 cubic centimetres (cm3) or 0.001 cubic metre (m3). Base Units of Metric Measurement Three base units are commonly used for metric measurement of medications to indicate weight (or mass), volume, and length: gram (), liter (), and meter ().. Memorize these base units of measurement. 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 0.999975±0.000001 kg/L at its point of maximum density (3.984 °C) under one standard atmosphere (760 Torr = 101.325 kPa) of pressure. Start studying Quiz 1 - Metric System and Conversions. A good number of scientific papers use mL as well as Joint Commission on Accreditation of Healthcare Organizations. Capitalization When Defining Abbreviations Although an abbreviation is composed of capital letters, the full words that define the abbreviation are not always capitalized. Use of a plural sis acceptable for units that are unabbreviated, such as acre or rad. The word is much less common in American English than elsewhere because Americans generally use U.S. customary units rather than the metric … Measures of mass or weight of types of tons are usually capitalized when abbreviated. An early definition of the kilogram was set as the mass of one litre of water. Both "l" and "L" are internationally accepted. 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. Hence 'mL' which stands for millilitre is a derived SI unit. 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". At standard pressure, one litre of water has a mass of 0.999975 kg at 4 °C, and 0.997 kg at 25 °C. Additionally, the mass–volume relationship of water (as with any fluid) depends on temperature, pressure, purity and isotopic uniformity. In 1901, at the 3rd CGPM conference, the litre was redefined as the space occupied by 1 kg of pure water at the temperature of its maximum density (3.98 °C) under a pressure of 1 atm. (2008a). 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 1 litre of water referred to above. There is only one common abbreviations of liter: “L”. In these countries, the symbol L is also used with prefixes, as in mL and μL, instead of the traditional ml and μl used in Europe. Fonts covering the CJK characters usually include not only the script small ℓ but also four precomposed characters: ㎕, ㎖, ㎗ and ㎘ for the microlitre, millilitre, decilitre and kilolitre. The plural forms are liters or litres, the accepted abbreviation is L, capitalized … Capitalization (North American English) or capitalisation (British English) is writing a word with its first letter as a capital letter (uppercase letter) and the remaining letters in lower case, in writing systems with a case distinction.The term also may refer to the choice of the casing applied to text. a cubic metre, which is the SI unit for volume) is exactly 1000 L. From 1901 to 1964, the litre was defined as the volume of one kilogram of pure water at maximum density (+4 °C) and standard pressure. In countries where the metric system was adopted as the official measuring system after the SI standard was established, common usage eschews prefixes that are not powers of 1000. Bureau International des Poids et Mesures. Lower-case letters are preferable because they are quicker and easier to read and do not interrupt the word-flow by making the eyes move up and down. Liter is the preferred spelling in the United States, the preferred spelling in British English is litre. Litres are most commonly used for items (such as fluids and solids that can be poured) which are measured by the capacity or size of their container, whereas cubic metres (and derived units) are most commonly used for items measured either by their dimensions or their displacements. Wellbeing or Well-Being – Which is Correct? The exception is liter, which IN THE UNITED STATES they recommend L to avoid confusion between the letter "l" and the number "1." In 1879, the CIPM adopted the definition of the litre, with the symbol l (lowercase letter L). The unit is spelled liter in the U.S. and litre in Britain; there are many other spellings in various languages (see Spelling of Metric Units). Turner, J. You might abbreviate the word liter to L on any written measurement directions or on a bottle of soda. CGPM defines the litre and its acceptable symbols. How do you abbreviate liter? The word liter is derived from the French word litron, which is an archaic measurement for grain. A cubic decimeter is a cube that has a special name, the liter (L): 1 dm 3 = 1 L A cubic decimeter contains 1000 cubic centimeters: 1 dm 3 - 1000 cm 3 A cubic centimeter equals a milliliter: 1 cm 3 - 1 mL. Taylor, B.N. This can potentially cause confusion with some other measurement words such as: However the context is usually sufficient hint — "mL" is a unit of volume; whereas the others are units of linear or angular measurement. Kenneth Butcher, Linda Crown, Elizabeth J. Gentry (2006), International Bureau of Weights and Measures, National Institute of Standards and Technology, International Committee for Weights and Measures, Bureau International des Poids et Mesures, Bureau International des Poids et Mesures, 2006, "Décret relatif aux poids et aux mesures du 18 germinal an 3 (7 avril 1795)", "List of physicochemical data concerning water", NIST Standard Reference Database Number 69, The International System of Units (SI) – Conversion Factors for General Use, "Table 6. , The litre, though not an official SI unit, may be used with SI prefixes. Americans do not really “think” in terms of metric measurements, but often will see the measurement liter related to purchasing beverages, etc. This caused some concern, especially in the medical community. 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.. Units are improperly capitalized if they are named after people. and for measuring the size of the catch and quotas for fishing boats; decilitres are common in Croatia, Switzerland and Scandinavia and often found in cookbooks, and restaurant and café menus; centilitres indicate the capacity of drinking glasses and of small bottles. Water providers are required to sample for lead in drinking water, and the most recent samples taken by the Little Thompson district came back with 11 that exceeded 15 micrograms per liter. mL is used as capital L avoids confusion with the number 1. By international standards, liter should be abbreviated simply as “l” or “L”, with no period following. The symbol for litre or liter is l, but is often written as L to prevent it from looking like the digit 1. What Does Quart Mean? 1. Most English abbreviations use periods as part of the abbreviated form. Therefore, for example, you’d write “an MD after her name,” rather than “a MD after her name,” because the first letter in that abbreviation is pronounced “em” and should therefore be preceded by an. and Thompson, A. There is one commonly used way to abbreviate liter. In the UK and Ireland, as well as the rest of Europe, lowercase l is used with prefixes, though whole litres are often written in full (so, "750 ml" on a wine bottle, but often "1 litre" on a juice carton). Glamor or Glamour – What’s the Difference? One litre of liquid water has a mass of almost exactly one kilogram, due to the gram being defined in 1795 as one cubic centimetre of water at the temperature of melting ice. Temperature abbreviations use capitals because they come from proper nouns. (2006). 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 litre (international spelling) or liter (American spelling) (SI symbols L or l, commonly, but incorrectly, abbreviated as ltr) is an SI accepted metric system unit of volume equal to 1 cubic decimetre (dm3), 1,000 cubic centimetres (cm3) or 1/1,000 cubic metre. This made the litre equal to about 1.000028 dm3 (earlier reference works usually put it at 1.000027 dm3).  In the medical field the microlitre is sometimes abbreviated as mcL on test results.. General Rules for Abbreviating Units of Measure ... = moles solute per liter of solvent For example, 1 M = 1 mole/liter; where, 1 mole = 6.023 x 10^23 molecules = 1 molecular weight (MW) Liter - What does liter stand … It is an abbreviation for parental. Subsequent redefinitions of the metre and kilogram mean that this relationship is no longer exact.. This made the original litre 1.000974 of today's cubic decimetre. It is a commonly used measure, especially in medicine, cooking and automotive engineering. A popular soda can size is two liters. The Abbreviation The abbreviated form of the word liter is upper case L or lowercase letter l, but some people use a cursive ℓ to ensure that the abbreviation is not confused with the number 1 or a capital letter i. The abbreviation for liter is preferably capitalized, L, to avoid confusion with the number 1.. Household System of Measurement Utensils used in the home, … We read by moving our eyes from right to left across a line of letters which are broken up into groups called words. ter (L, l), ( lē'tĕr ), Although the SI unit of volume is the cubic meter and, by extension, the cubic centimeter (1 cm 3 =0.000 001 m 3 ), the liter and its submultiples are preferred to the cubic meter and its submultiples for the expression of volumes and substance or mass concentrations in clinical chemistry. From the tweakiest techniques to the biggest ideas, our experts work hard to constantly supply inSync with a steady stream of helpful, in-depth demos, reviews, how-tos, news, and interviews.  When to Use This Abbreviation. Learn vocabulary, terms, and more with flashcards, games, and other study tools. This symbol can still be encountered occasionally in some English-speaking and European countries like Germany, and its use is ubiquitous in Japan and South Korea. , As a result, L (uppercase letter L) was adopted as an alternative symbol for litre in 1979. Note: Liter is often seen incorrectly abbreviated as ltr. Bottles may also be 75 cL or half size at 37.5 cL for "artisanal" brews or 70 cL for wines or spirits. The most common mistake made in abbreviating liter is using three letters. The litre (British and Commonwealth spelling) or liter (American spelling) (SI symbols L and l, other symbol used: ℓ) is a metric unit of volume. In addition to the unit symbols, Table II lists many common technical abbreviations in their standard IEEE editorial forms. The litre was also used in several subsequent versions of the metric system and is accepted for use with the SI, although not an SI unit—the SI unit of volume is the cubic metre (m3). Information. (16 May 2008). Also, the plural abbreviation of liter is understood by the same abbreviation, without adding an “s”, so the plural would be simply “L” or “l”. The Newton (after Isaac Newton) for measuring units of force The Watt (after James Watt) for measuring units of power, joules per second. National Institute of Standards and Technology. For the plant commonly known as litre, see. Other units may be found in the table below, where the more often used terms are in bold. Therefore, the digit "1" may easily be confused with the letter "l". In 1990, the International Committee for Weights and Measures stated that it was too early to choose a single symbol for the litre.. It was against this litre that the kilogram was constructed. Cans come in 25 cL, 33 cL and 50 cL. The choice depends not on the first letter of the abbreviation itself but on the sound of the first letter. SI unit of litre is abbreviated as 'L'. One cubic foot has an exact volume of 28.316846592 litres, which is 4.88% higher than the 27-litre approximation. For example, in Canada, Australia, and New Zealand, consumer beverages are labelled almost exclusively using litres and millilitres. , Originally, the only symbol for the litre was l (lowercase letter L), following the SI convention that only those unit symbols that abbreviate the name of a person start with a capital letter. Acronyms and initialisms are abbreviations of multiple words using just their initial letters; like the initials of a person’s name, these letters are usually capitalized. According to them (page 24) all units should have lowercase abbreviations except when the first letter is also capitalized. It is also generally for all volumes of a non-liquid nature. ● cc ● millilitre ● cubic centimetre ● cl ● centiliter ● cubic centimeter ● metric capacity unit ● centilitre ● cubic millimeter ● mil ● cubic millimetre ● ml When this happens the water district is required to alert customers of the results and health risks of exposure to lead. The spelling "liter" is predominantly used in American English. It follows, therefore, that 1000th of a litre, known as one millilitre (1 mL), of water has a mass of about 1 g; 1000 litres of water has a mass of about 1000 kg (1 tonne). One cubic foot would contain exactly 27 such cubes (four inches on each side), making one cubic foot approximately equal to 27 litres. Examples: m (meter) Hectolitres sometimes appear in industry, but centilitres and decilitres are rarely, if ever, used. Prior to 1979, the symbol ℓ came into common use in some countries; for example, it was recommended by South African Bureau of Standards publication M33 and Canada in the 1970s. The abbreviation "cc" is still commonly used in many fields, including medical dosage and sizing for combustion engine displacement. The litre is often also used in some calculated measurements, such as density (kg/L), allowing an easy comparison with the density of water. Home » Abbreviations Dictionary » What is the Abbreviation for Liter? Owing to the force of tradition, one noncoherent unit, the liter, equal to 10 −3 m 3, or 1 dm 3, is generally accepted for use with SI. In the beginning of a sentence, should I capitalize abbreviations such as the following: hPSC (human pluripotent stem cell) mESC (mouse embryonic stem cell) rDNA (recombinant deoxyribonucleic acid) I have seen both lower and upper case for the two first, while rDNA always seems to be in lower case. –.  Similarly, alcohol shots are often marked in cL in restaurant menus, typically 3 cL (1.06 imp fl oz; 1.01 US fl oz). Learn vocabulary, terms, and more with flashcards, games, and other study tools. In the SI system, apart from prefixes for powers of 1000, use of the "centi" (10−2), "deci" (10−1), "deca" (10+1) and "hecto" (10+2) prefixes with litres is common. This relationship holds because the gram was originally defined as the mass of 1 mL of water; however, this definition was abandoned in 1799 because the density of water changes with temperature and, very slightly, with pressure. Definition of Liter: Liter is defined as a metric unit of capacity, formerly defined as the volume of 1 kilogram of water under standard conditions, now equal to 1,000 cubic centimeters (about 1.75 pints). The liter is abbreviated with the unit symbol (L). A litre of liquid water has a mass almost exactly equal to one kilogram. 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 actually 1.75975399 pints. Passion. (Table 6, page 20).  An exception is in pathology, where for instance blood lead level may be measured in micrograms per decilitre. 6.1.2 Capitalization Unit symbols are printed in lower-case letters except that: (a) the symbol or the first letter of the symbol is an upper-case letter when the name of the unit is derived from the name of a person; and (b) the recommended symbol for the liter in the United States is L [see Table 6, footnote (b)]. This entry refers not to a or an as abbreviations but to which of the two indefinite articles should precede a given abbreviation. The litre (British and Commonwealth spelling) or liter (American spelling) (SI symbols L and l, other symbol used: ℓ) is a metric unit of volume. The few exceptions that use capital letters are noted below. In colloquial Dutch in Belgium, a "vijfentwintiger" and a "drieëndertiger" (literally "twenty-fiver" and "thirty-threer") are the common beer glasses, the corresponding bottles mention 25 cL and 33 cL.  Larger volumes are usually given in cubic metres (equivalent to 1 kL), or thousands or millions of cubic metres. The word liter functions as a noun in the sentence. It is also sometimes rendered in lowercase cursive form ℓ for the same reason: The litre, and the symbol lower-case l, were adopted by the CIPM in 1879 (PV, 1879, 41). One litre of water has a mass of almost exactly one kilogram when measured at its maximal density, which occurs at about 4 °C. In spoken English, the symbol "mL" (for millilitre) can be pronounced as "mil". By international standards, liter should be abbreviated simply as “l” or “L”, with no period following. The first name of the litre was "cadil"; standards are shown at the Musée des Arts et Métiers in Paris.. The original French metric system used the litre as a base unit. The metric system is not widely used in the U.S., but most of the rest of the world does use it. Non-SI units accepted for use with the SI by the CIPM and this Guide", Non-SI units accepted for use with the SI by the CIPM, "Bureau International des Poids et Mesures, 2006", "The Unicode Standard 12.0 – CJK Compatibility ❰ Range: 3300—33FF ❱", "Visite Générale au Musée des arts et métiers", "Appendix C: General tables of units of measurement", "Interpretation of the International System of Units (the Metric System of Measurement) for the United States", https://en.wikipedia.org/w/index.php?title=Litre&oldid=995386912, Articles with incomplete citations from April 2020, Short description is different from Wikidata, Articles with unsourced statements from January 2020, Articles with unsourced statements from September 2019, Articles with unsourced statements from October 2019, Creative Commons Attribution-ShareAlike License. This page was last edited on 20 December 2020, at 19:27. Personal titles, however, in Spanish and English both are capitalized, so there’s no confusion there! This abbreviation is usually found on package labeling, in food preparation measurements, and to indicate a specific amount of liquid. Therefore, as a general rule, capitals should not be used unless there is a good reason to do so, eg, to show the beginning of a sentence. In some computer typefaces, the two characters are barely distinguishable.  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.. The L is capitalized because it is the proper form of the abbreviation for LITER. The word litre is derived from an older French unit, the litron, whose name came from Greek—where it was a unit of weight, not volume—via Latin, and which equalled approximately 0.831 litres. Start studying dosage calculation chapter 6. Each case involves considering if the word is an official name or a proper noun. The microlitre (μL) has been known in the past as the lambda (λ), but this usage is now discouraged. These end up in landfills. This abbreviation is commonly used in recipes, classrooms, and miscellaneous unit measurements. Hence 1 L ≡ 0.001 m3 ≡ 1000 cm3, and 1 m3 (i.e. Also, the plural abbreviation of liter is understood by the same abbreviation, without adding an “s”, so the plural would be simply “L” or “l”. 1000 microliters = 1 milliliter 1,000,000 microliters = 1 liter (1000 milliliters = 1 liter) The prefix "micro" means one millionth (10-6) The prefix "milli" means one thousandth (10-3) Therefore there are 1,000,000 microliters in a liter and 1000 milliliters in a liter. Liter is the preferred spelling in American English, and litre is preferred in all other main varieties of English. Definition of Quart: Quart is defined as a United States liquid unit equal to 32 fluid ounces; four quarts equal one gallon. 2. Note that periods are not used and the abbreviation is the same regardless of whether it Because volume changes with temperature and pressure, and pressure uses units of mass, the definition of a kilogram was changed. (December 2003). (See also AMA-10, pp 520-525.) One litre is the volume of a cube with 10 cm sides. Define liter. A litre is the volume of a cube with sides of 10 cm, which is slightly less than a cube of sides 4 inches (one-third of a foot). Abbreviations of Units of Measurement Abbreviations for most units of measurements use small letters and periods. For example, Jean’s special fish stew calls for two quarts of clam broth. The capitalized version is more easily recognized by a wider group. The internationally accepted abbreviation for liter is the letter l; however, this can be confused with the numeral 1, especially in typescript. Visualize a liter as one square meter that is millimeter thick. 3 L = 3 L 3L = 3000 mlThere are 1000 milliliters in 1 liter. In 1964, the definition relating the litre to mass was superseded by the current one.  The United States National Institute of Standards and Technology now recommends the use of the uppercase letter L, a practice that is also widely followed in Canada and Australia. , Although kilolitres, megalitres, and gigalitres are commonly used for measuring water consumption, reservoir capacities and river flows, for larger volumes of fluids, such as annual consumption of tap water, lorry (truck) tanks, or swimming pools, the cubic metre is the general unit. However, it should be noted that "mL" is also a valid abbreviation for milliliter. The original decimetre length was 44.344 lignes, which was revised in 1798 to 44.3296 lignes. , This article is about a common unit of volume. NIST guides use American spelling. Jan is bringing four liters of wine, Rock will bring six, and I will supply another six for the Homecoming Party. It is equal to 1 cubic decimetre (dm ), 1000 cubic centimetres (cm ) or 0.001 cubic metre (m ). For example, in many European countries, the hectolitre is the typical unit for production and export volumes of beverages (milk, beer, soft drinks, wine, etc.) There is one commonly used way to abbreviate liter. It was subsequently discovered that the cylinder was around 28 parts per million too large and thus, during this time, a litre was about 1.000028 dm3. SI symbols should be preceded by digits and a space must separate the digits from the symbol. Neither LTR or ltr would be a correct abbreviation. One litre is slightly larger than a US liquid quart and slightly less than an imperial quart or one US dry quart. Primary units in the metric system are capitalized... such as M for Meter, L for Liter. Thus, measures such as kg, km and kph are nearly always in lower-case. 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 1 dm3.