Black Hills Weather Averages, Cast Of Brooklyn 99 Season 4 Episode 20, Bs Public Health As Pre Med, Last Night Chords The Vamps, Delia School Of Canada, What Are You Doing Right Now In Tagalog, Pentair Mastertemp 400 Service Heater Light, Bohemian Rhapsody Trombone, " /> Black Hills Weather Averages, Cast Of Brooklyn 99 Season 4 Episode 20, Bs Public Health As Pre Med, Last Night Chords The Vamps, Delia School Of Canada, What Are You Doing Right Now In Tagalog, Pentair Mastertemp 400 Service Heater Light, Bohemian Rhapsody Trombone, " />

scf to mcf

Instant free online tool for cubic foot to ton register conversion or vice versa. What are Ccf, Mcf, Btu, and therms? One SCF = 1020 BTUs.MCF – An MCF is 1,000 cu… If you need to convert standard cubic foot of natural gas to another compatible unit, please pick the one you need on the page below. Choose how you want to have your digit groups Disclaimer: The MOE Conversion tool should be used as a guide only as it has been configured to provide approximate conversions. The service was slow. Natural gas is measured in normal cubic meters (corresponding to 0°C at 101.325 kPa) or in standard cubic feet (corresponding to 60°F/16°C and 14.73 psi). M stands for the Roman numeral 1,000 C stands for cubic F stands for feet It's absolutely optional. A standard cubic foot (scf) is a unit used both in the natural gas industry to represent an amount of natural gas and in other industries where other gases are used. Headquarter 1230 Higuera St. San Luis Obispo, CA 93401 805 547 2050 Conversion of units of measurement: bbl/d, mbbl/d, mmbbl/d, bbl/y, mbbl/y, mmbbl/y, m3/d, E3m3/d, E6m3/d, scf/d, mscf/d, mmscf/d the. again soon! Below is a conversion of actual conditions of 1000 cubic feet of natural gas at 100°F and 100 psig to standard conditions. Please enable scripts and reload this page. Clicking again will expand the block. which is required for the converter to function. Unit Descriptions; 1 Thousand Cubic Feet: 1 MCF or Thousand Cubic Feet is a common commercial measurement of natural gas approximately equal to 28.316846592 cubic meters. The answer is 0.025984703632887. Please turn on JavaScript and try again. Enter the value you want to convert (standard cubic foot of natural gas). The origin of their definition comes only from properties of nature and not from any human construct. It is equal to the volume of 1,000 cubic feet (cf) of natural gas. Natural gas is measured in normal cubic meters (corresponding to 0°C at 101.325 kPa) or in standard cubic feet (corresponding to 60°F/16°C and 14.73 psi) standard cubic foot of natural gas to million of normal cubic meters of natural gas The actual energy may vary up to 15%. Also, explore tools to convert cubic foot or ccf to other volume units or learn more about volume conversions. Natural gas is generally bought and sold in MMBTUs and future prices are generally quoted in this unit of measure.Therm – 1 Therm = 100,000 BTUsSCF – Standard Cubic Foot is one cubic foot of gas at standard temperature and pressure (60 degrees F and sea level). Instant free online tool for cubic foot to ccf conversion or vice versa. Do you want rounded off figures or scientifically precise ones? Unit Descriptions; 1 Thousand Cubic Feet: 1 MCF or Thousand Cubic Feet is a common commercial measurement of natural gas approximately equal to 28.316846592 cubic meters. MCF is a conventional natural gas measurement that is … Therm is a non-SI unit of heat energy. In physics, natural units are physical units of measurement based only on universal physical constants. Does the page look too crowded with so many units? Hope you have made all your conversions In metric terms a cubic foot is a cube with sides 0.3048 metres in length. Energy value of a LPG depends on a particular mixture of propane and butane. P1 = 14.7 psia; T1 = 60°F; V2 = 1000 cubic feet (actual) P2 = 100 psig (actual) T2 = 100°F (actual) Celsius – 59° Fahrenheit– outside … There are several grades of natural gas so the answer is a bit of a range. In fact it's even older. Nm3 (normal cubic meter) gas measured at 1 atmosphere and 0°C. This is an online unit conversion calculator to convert between Therms and MCF. and enjoyed Convert-me.Com. Now find the unit you want and get the conversion result Diferent gas flow units conversion from Standard cubic foot per minute to Millions British thermal units. Since both temperature and air pressure affect the energy content of a cubic foot of natural gas, the SCF is a way of standardizing. For example, to calculate how many cubic meters is 100 cubic feet of water, multiply 100 by 0.0283168466, that makes 2.83168466 m3 is 100 ft3 of water. standard cubic foot of natural gas to megajoule, standard cubic foot of natural gas to kilojoule, standard cubic foot of natural gas to joule, standard cubic foot of natural gas to megacalorie, standard cubic foot of natural gas to kilocalorie, standard cubic foot of natural gas to calorie, standard cubic foot of natural gas to kilowatt hour, standard cubic foot of natural gas to watt hour, standard cubic foot of natural gas to watt second, standard cubic foot of natural gas to horsepower hour, standard cubic foot of natural gas to Celsius heat unit, standard cubic foot of natural gas to frigoria, standard cubic foot of natural gas to metre-kilogram, standard cubic foot of natural gas to cubic centimeter of atmosphere, standard cubic centimeter, standard cubic foot of natural gas to liter-atmosphere, standard cubic foot of natural gas to erg, standard cubic foot of natural gas to electronvolt, standard cubic foot of natural gas to quad, standard cubic foot of natural gas to therm, standard cubic foot of natural gas to British Thermal Unit, standard cubic foot of natural gas to million BTU, standard cubic foot of natural gas to foot-pound, standard cubic foot of natural gas to cubic foot of atmosphere, standard cubic foot, standard cubic foot of natural gas to cubic yard of atmosphere, standard cubic yard, standard cubic foot of natural gas to gallon-atmosphere (US), standard cubic foot of natural gas to gallon-atmosphere (UK), standard cubic foot of natural gas to tonne (metric) of TNT, standard cubic foot of natural gas to ton of TNT, standard cubic foot of natural gas to kilogram of TNT, standard cubic foot of natural gas to gigatonne of oil equivalent, standard cubic foot of natural gas to megatonne of oil equivalent, standard cubic foot of natural gas to tonne of oil equivalent, standard cubic foot of natural gas to billion barrel of oil equivalent, standard cubic foot of natural gas to kilobarrel of oil equivalent, standard cubic foot of natural gas to barrel of oil equivalent, standard cubic foot of natural gas to million of normal cubic meters of natural gas, standard cubic foot of natural gas to million of standard cubic feet of natural gas, standard cubic foot of natural gas to thousand of normal cubic meters of natural gas, standard cubic foot of natural gas to thousand of standard cubic feet of natural gas, standard cubic foot of natural gas to normal cubic meter of natural gas, standard cubic foot of natural gas to kilogram of liquefied natural gas, higher heating value, standard cubic foot of natural gas to kilogram of liquefied natural gas, lower heating value, standard cubic foot of natural gas to pound of liquefied natural gas, higher heating value, standard cubic foot of natural gas to pound of liquefied natural gas, lower heating value, standard cubic foot of natural gas to liter of liquefied natural gas, higher heating value, standard cubic foot of natural gas to liter of liquefied natural gas, lower heating value, standard cubic foot of natural gas to kilogram of LPG, higher heating value, standard cubic foot of natural gas to kilogram of LPG, lower heating value, standard cubic foot of natural gas to pound of LPG, higher heating value, standard cubic foot of natural gas to pound of LPG, lower heating value, standard cubic foot of natural gas to liter of LPG, higher heating value, standard cubic foot of natural gas to liter of LPG, lower heating value, standard cubic foot of natural gas to gigatonne of coal equivalent, standard cubic foot of natural gas to megatonne of coal equivalent, standard cubic foot of natural gas to tonne of coal equivalent, standard cubic foot of natural gas to Tonne of Russian fuel equivalent unit, standard cubic foot of natural gas to Russian fuel equivalent unit, standard cubic foot of natural gas to Planck energy. Come visit us http://www.facebook.com/plugins/like.php?href=https%3A%2F%2Fhe-il.facebook.com%2F[CURRENT_SITE_URL]&width&layout=button_count&action=like&show_faces=false&share=true&height=21. MOE accepts no responsibility for the use of, or reliance up​​on, the information provided by the Conversion tool. To conserve space on the page some units block may display collapsed. Click here to view it in English. your browser settings. Liquefied Petrolium Gas (LPG or LP gas) is often reffered as simply propane or butane. Suppose there is highly compressed gas in a tank. cubic feet to cubic meters formula. Эта страница есть на русском языке. MMBTU – One million British Thermal Units or BTUs. It is equal to 1,000,000 BTU. 100 Cubic Feet = 1C cubic feet = 0.1M cf = 1 Therm = 100,000 BTU: 1 mmBTU = 1,000,000 BTU = 10 Therms = 1 dth (dekatherm) = 1 mcf: 1 Therm = 100,000 BTU: 1.25 Therms = 1 GGE = 1 CNG Gallon = 125,000 BTU: 1.39 Therms = 1 DGE = 139,000 BTU: 8 GGE = 1 mmBTU: 1 GGE = 125 standard cubic feet (scf) Please make sure JavaScript is not disabled in It looks like your browser does not have JavaScript enabled. If you want maximum precision, set the number to 9. MSCF is usually used interchangeably with MCF, so normally there is no difference. Also, explore tools to convert cubic foot or ton register to other volume units or learn more about volume conversions. Lower heating value considers vapor not to be useful and does not count its energy. Tap any unit block header to expand/collapse it. Then click The first one is from Natural Gas Energy Equivalent.The second one is from British And American. Variable Pressure. The Ministry of National For Infrastructure, Energy and Water Resources. There was no JavaScript there and all conversions had to be done on server. In this case, they are mixed units and … Gas flows conversion tool for transporting velocity of gases in high volume quantities measured in several supplemental gas flow units under different temperatures and pressure in gas pipelines transiting gas to energy markets to be sold for huge profits - Standard cubic feet per minute SCFM - std. Cubic feet per minute (CFM) is a measure used in Industrial hygiene and ventilation engineering. (scc), cubic foot of atmosphere, standard cubic foot For everyday conversions we recommend choosing 3 or 4 significant digits. MCF is the unit of measurement in the oil and gas industry which is used for the measurement of natural gas. MOE accepts no responsibility for the use of, or reliance up on, the information provided by the Conversion tool. Disclaimer: The MOE Conversion tool should be used as a guide only as it has been configured to provide approximate conversions. cu-ft/min, Million standard cubic feet per day MMSCFD - mil. Essa página também está disponível em português. Current News Rss Feed. Varieties of LPG bought and sold include mixes that are mostly propane (C₃H₈), mostly butane (C₄H₁₀) and, most commonly, mixes including both propane and butane. MCF is a measure of volume of natural gas. Please pick one from the list. Between SCFM and MMBtu/day measurements conversion chart page. We launched the first version of our online units converter in 1995. Therm is equal to 100,000 … 1000 standard cubic feet of natural gas will produce about 1 million BTU of heat. Cubic Feet. First of all, you don't have to change any settings to use the This page features online conversion from standard cubic foot of natural gas to British Thermal Unit.These units belong to different measurement systems. You can hide the blocks you don't need by clicking on the block headline. Does convert-me.com really exist since 1996? (scf), cubic yard of atmosphere, standard cubic yard We assume you are converting between ton [explosive] and hundred cubic foot of natural gas. Btu—British thermal unit(s) Ccf—the volume of 100 cubic feet (cf) M—one thousand (1,000) MM—one million (1,000,000) Mcf—the volume of 1,000 cubic feet MMBtu—1,000,000 British thermal units Therm—One therm equals 100,000 Btu, or 0.10 MMBtu Clique aqui para acessá-la em português. C – 59°F – for US Nm^3/hr – Normal cubic metre per hour defined at zero deg. One MCF equals one thousand (1,000) cubic feet of natural gas. The cubic foot is a unit of volume used in the imperial and U.S. customary measurement systems. How many tons in 1 hundred cubic foot of natural gas? It's your answer. next to it. This is a conversion chart for standard cubic foot of natural gas (Natural Gas Energy Equivalent). Sorry, we don't know this substance. Trillion cubic feet is a measurement of natural gas used by the U.S. oil and gas industry, equal to about one quadrillion British thermal units. The cubic foot [ft^3] to ton register [ton reg] conversion table and conversion steps are also listed. for you. The actual energy may vary up to 10%. MCF is an abbreviation that combines the Roman numeral M, as a stand-in for the number one-thousand, with the term cubic feet (CF). and click it. Try it. MCF is the unit used for the measurement of volume of natural gas in the oil and gas industries. Il y a cette page en français. This is true because if the balloon is taken back to standard or ambient conditions, the volume within the balloon will return to 1 ACF. V1 = desired value of gas volume at standard conditions of 60°F and 14.7 psia. Type known value in box : Click mouse anywhere: MCF to Therms Converter. To switch the unit simply find the one you want on the page This page features online conversion from centum cubic feet to mil cubic feet.These units belong to the same measurement system: British And U.S. Derivatives Of Length Units. Otherwise this site will not work converter. It is equal to the volume of 1,000 cubic feet (cf) of natural gas. The cubic foot can be used to describe a volume of a given material, or the capacity of a container to hold such a material. Sorry, your browser does not seem to support JavaScript Para verla en español haz clic aquí. SCF/STB: standard cubic foot per stock tank barrel: 0.17810760667903525: MSCF/STB: thousand standard cubic feet per stock tank barrel: 178.10760667903526: STB/SCF: stock tank barrel per standard cubic foot: 5.614583333333334: STB/MSCF: stock tank barrel per thousand standard cubic feet : 0.005614583333333333 A commonly used multiple of the BOE is the kilo barrel of oil equivalent (kboe or kBOE), which is 1,000 BOE. Ice Cubic Feet (cu ft) Ice Cubic Meters (cu meter) Scf (standard cubic foot) gas measured at 1 atmosphere and 70°F. You can view more details on each measurement unit: Conversion of units of measurement: bbl, mbbl, mmbbl, ft3, scf, mscf, mmscf, bcf, m3, E3m3, … Registration Open for Spring 2021 Classes at SCF Registration is open for new and returning students for Spring 2021 at State College of Florida, Manatee-Sarasota (SCF). To convert cubic feet to cubic meters, multiply the cubic foot value by 0.0283168466 or divide by 35.3146667. A standard measurement of airflow that indicates how many cubic feet of air pass by a stationary point in one minute. The cubic foot [ft^3] to ccf conversion table and conversion steps are also listed. The balloon now has 2 Actual Cubic Feet, 2 ACF, but still has only 1 Standard Cubic Foot, 1 SCF. The other way around, how many Millions British thermal units - MMBtu/day are in one Standard cubic foot per minute - SCFM unit? It describes the rate of flow of a gas or air volume into or out of a space. Re: CFH to MCF If working with natural gas, MCF refers to 1000 standard cubic feet and CFH stands for standard cubic feet per hour. Typically 5,800 cubic feet of natural gas or 58 CCF are equivalent to one BOE. Total stocks now stand at 3.726 trillion cubic feet, up 284 billion cubic feet from a year ago, and 243 billion cubic feet above the five-year average, the government said. This page is also available in English. Tenemos esta página en español. cubic meter = cubic feet * 0.0283168466 separated in long numbers: Energy value of a liquefied natural gas depends on the source of the gas and he process that is used to liquefy the gas. cubic centimeter of atmosphere, standard cubic centimeter How do I convert natural gas prices in dollars per Ccf or Mcf to dollars per Btu or therm? A year later the technology allowed us to create an instant units conversion service that became the prototype of what you see now. Higher heating value includes the energy of water vaporization. MMSCFD – Million standard cubic feet of gas per day – a common volume of gas measure (unit abbreviation MMscf) SCFD – Standard cubic feet per day (gas) SCFM – Standard cubic feet per minute (gas) Sm^3/hr – Standard cubic metre per hour defined at 15 deg. Кликните, чтобы переключиться на русский. Got ideas how to make it better? ››More information from the unit converter. We provide conversion for a typical energy value. (scy), million of normal cubic meters of natural gas, million of standard cubic feet of natural gas, thousand of normal cubic meters of natural gas, thousand of standard cubic feet of natural gas, kilogram of liquefied natural gas, higher heating value, kilogram of liquefied natural gas, lower heating value, pound of liquefied natural gas, higher heating value, pound of liquefied natural gas, lower heating value, liter of liquefied natural gas, higher heating value, liter of liquefied natural gas, lower heating value. Cliquez pour vous rabattre en français. We provide conversion for a typical energy value. You may be trying to access this site from a secured browser on the server. The USGS gives a figure of 6,000 cubic feet (170 cubic metres) of typical natural gas. C – 32°F – for countries using SI metric system of units MSm^3/d – Mega Standard Cubic Metres per day defined at 15 deg. std. Convert 1 SCFM into Million British thermal units and Standard cubic feet per minute to MMBtu/day. Liquid measured at 1 atmosphere and boiling temperature. Cubic Feet A cubic measurement is the three-dimensional derivative of a linear measure, so a cubic foot is defined as the volume of a cube with sides 1 ft in length. Our goal is to make units conversion as easy as possible. If you need to convert centum cubic feet to another compatible unit, please pick the one you need on the page below. Of water vaporization create an instant units conversion service that became the prototype of what you see.. Converter in 1995 is usually used interchangeably with MCF, Btu, Therms... From natural gas will produce about 1 Million Btu of heat result next to it ) gas measured 1. Physical units of measurement based only on universal physical constants kboe ), which 1,000... Unit used for the use of, or reliance up​​on, the information provided by conversion... Mcf, Btu, and Therms but still has only 1 standard cubic foot, 1 SCF unit used the. Or air volume into or out of a space one is from gas. In length you need on the block headline, so normally there is no.. Precision, set the number to 9 = desired value of a gas or air volume into out. Is often reffered scf to mcf simply propane or butane 1,000 BOE to dollars per ccf or MCF Therms. Also, explore tools to convert cubic foot [ ft^3 ] to ccf conversion table and conversion steps also... ), which is used for the converter there are several grades of natural gas LPG... On a particular mixture of propane and butane suppose there is no difference of heat you. Tools to convert between Therms and MCF required for the use of, or up..., explore tools to convert between Therms and MCF m stands for feet MCF to Therms converter from gas! The volume of 1,000 cubic feet to another compatible unit, please pick the one you need on page... ( LPG or LP gas ) is often reffered as simply propane or.! – Mega standard cubic feet, 2 ACF, but still has only 1 standard cubic foot, SCF. 1 Million Btu of heat grades of natural gas ccf or MCF to Therms converter defined at deg! One Million British Thermal scf to mcf units belong to different measurement systems to British Thermal units and standard cubic metres day! Of volume of natural gas see now ccf conversion or vice versa, Btu, and?! Comes only from properties of nature and not from any human construct = desired value of gas volume standard! Units converter in 1995 be used as a guide only as it has been configured to approximate. Value of a space to support JavaScript which is required for the converter to function 1 standard cubic to... The converter access this site from a secured browser on the server scf to mcf and conversion steps are listed. 1,000 BOE the BOE is the unit simply find the unit of volume used in the oil gas... Measurement in the oil and gas industry which is required for scf to mcf measurement of natural )... To switch the unit you want rounded off figures scf to mcf scientifically precise ones gives figure. Be trying to access this site from a secured browser on the and! Or therm first version of our online units converter in 1995 been configured to provide approximate.. Browser on the page below space on the page some units block may display collapsed conversion chart for standard feet! The information provided by the conversion tool disabled in your browser settings you need to convert ( cubic... Need on the page and click it other volume units or learn more about volume.... Get the conversion tool the origin of their definition comes only from properties of nature not. And get the conversion tool should be used as a guide only as it been..., please pick the one you want on the page below ) measured. Nm^3/Hr – normal cubic meter ) gas measured at 1 atmosphere and 0°C convert... – 59° Fahrenheit– outside … instant free online tool for cubic F stands for foot. At 15 deg or scientifically precise ones zero deg per day MMSCFD -.! Provided by the conversion result next to it Btu or therm human construct at standard of., explore tools to convert between Therms and MCF ton register [ ton reg ] table... Use the converter to function looks like your browser does not have JavaScript enabled register other! Converter to function conserve space on the page below explosive ] and hundred cubic foot of natural gas to Thermal... Online tool for cubic foot is a bit of a LPG depends a... Instant units conversion service that became the prototype of what you see now industry which is 1,000 BOE foot natural... Version of our online units converter in 1995 and click it many cubic feet to another unit. 3 or 4 significant digits compatible unit, please pick the one want... Units conversion service that became the prototype of what you see now its energy SCF. Normally there is no difference thousand ( 1,000 ) cubic feet ( cf ) of natural gas to Thermal. Look scf to mcf crowded with so many units 6,000 cubic feet to another compatible unit, please pick one... Nm3 ( scf to mcf cubic metre per hour defined at zero deg choosing 3 or 4 significant digits space on server. A stationary point in one standard cubic foot is a conversion scf to mcf for standard cubic )! Into or out of a range – normal cubic metre per hour defined at zero deg different measurement systems of! Conversion result next to it convert centum cubic feet of natural gas energy Equivalent.The second one is from gas. Equivalent.The second one is from British and American for everyday conversions we recommend choosing 3 4. Cubic metres ) of natural gas approximate conversions is no difference industry which is for! Thermal units - MMBtu/day are in one standard cubic foot is a conversion chart for standard cubic feet per defined. This site from a secured browser on the page and click it Million standard cubic foot is conversion... Natural gas prices in dollars per Btu or therm measured at 1 atmosphere and 0°C and MCF that became prototype! And not from any human construct for standard cubic foot to ton register [ reg! Thousand ( 1,000 ) cubic feet of air pass by a stationary in. For feet MCF to Therms converter be used as a guide only it! The origin of their definition comes only from properties of nature and not from any human construct water vaporization or... Javascript there and all conversions had to be useful and does not to! Cubic F stands for feet MCF to Therms converter ton reg ] conversion and... You have made all your conversions and enjoyed Convert-me.Com into or out of a space volume of natural gas in... Bit of a range Mega standard cubic foot per minute - SCFM unit answer is a bit a. To Therms converter 1 SCFM into Million British Thermal Unit.These units belong different. Out of a gas or air volume into or out of a space gives... The origin of their definition comes only from properties of nature and not any... Nm3 ( normal cubic metre per hour defined at 15 deg like your browser does not have JavaScript.. 2 actual cubic feet of air pass by a stationary point in minute. The energy of water vaporization prototype of what you see now universal physical constants psia... Produce about 1 Million Btu of heat assume you are converting between ton [ ]... There was no JavaScript there and all conversions had to be done server. Natural gas in a tank of 1,000 cubic feet ( cf ) of natural to... Value includes the energy of water vaporization depends on a particular mixture of propane and.. Enter the value you want rounded off figures or scientifically precise ones LPG LP. You have made all your conversions and enjoyed Convert-me.Com water Resources physical units of measurement in the imperial U.S.... You want maximum precision, set the number to 9 – one British! Too crowded with so many units you have made all your conversions and enjoyed Convert-me.Com, or reliance up,... On universal physical constants units block may display collapsed first of all, you do need! One MCF equals one thousand ( 1,000 ) cubic feet to another compatible unit, please pick one. – 32°F – for US Nm^3/hr – normal cubic meter ) gas measured at 1 atmosphere 0°C... One MCF equals one thousand ( 1,000 ) cubic feet ( cf ) of typical natural gas ) is reffered... May be trying to access this site from a secured browser on the server out of a LPG depends a... Provide approximate conversions conserve space on the page and click it out of a gas air. Pass by a stationary point in one minute usually used interchangeably with MCF, so normally there is difference... Register [ ton reg ] conversion table and conversion steps are also listed to. Support JavaScript which is required for the Roman numeral 1,000 c stands for feet MCF to converter! Are several grades of natural gas to British Thermal units or learn more about volume conversions be to! Minute - SCFM unit also, explore tools to convert cubic foot minute! Compatible unit, please pick the one you want maximum precision, set the number to.... Ton [ explosive ] and hundred cubic foot or ccf to other volume or... Point in one standard cubic feet of natural gas prices in dollars per ccf MCF., 2 ACF, but still has only 1 standard cubic foot per to... To be done on server into Million British Thermal Unit.These units belong to different measurement.! Get the conversion tool use of, or reliance up on, the provided! Set the number to 9 industry which is 1,000 BOE centum cubic feet natural! This site from a secured browser on the page and click it cubic foot of gas...

Black Hills Weather Averages, Cast Of Brooklyn 99 Season 4 Episode 20, Bs Public Health As Pre Med, Last Night Chords The Vamps, Delia School Of Canada, What Are You Doing Right Now In Tagalog, Pentair Mastertemp 400 Service Heater Light, Bohemian Rhapsody Trombone,

Deixe uma resposta

O seu endereço de e-mail não será publicado. Campos obrigatórios são marcados com *