Similar to thread count, mommes are units of weight traditionally used to measure the density of what?
"9,000 meters of the thread weighs. Unlike the common thread weight system, the greater the denier number, the thicker the thread. The denier weight system, like the common weight system, also specifies the number of strands of the specified weight which were wrapped together to make the finished thread. Tex is the mass in grams of 1,000 meters of thread. If 1,000 meters weighs 25 grams, it is a tex 25. Larger tex numbers are heavier threads. Tex is used more commonly in Europe and Canada. Some thread manufacturers, especially those producing very fine silk threads, apply their own scales"
"charmeuse is opaque. Thread count or threads per inch (TPI) is a measure of the coarseness or fineness of fabric. It is measured by counting the number of threads contained in one square inch of fabric or one square centimeter, including both the length (warp) and width (weft) threads. The thread count is the number of threads counted along two sides (up and across) of the square inch, added together. It is used especially in regard to cotton linens such as bed sheets, and has been known to be used in the classification of towels. There is a common misconception"
"tourist destination in recent years, but commercial production of freshwater pearls has ceased. For many cultured pearl dealers and wholesalers, the preferred weight measure used for loose pearls and pearl strands is the momme. Momme is a weight measure used by the Japanese for centuries. Today, momme weight is still the standard unit of measure used by most pearl dealers to communicate with pearl producers and wholesalers. One momme corresponds to 1/1000 kan. Reluctant to give up tradition, the Japanese government formalized the kan measure in 1891 as being exactly 3.75 kilograms or 8.28 pounds. Hence, 1 momme = 3.75"
"as hard disk drives, optical disc drives and tape drives. The current unit of measure is typically gigabits per square inch. The area density is often used to describe the thickness of paper; e.g., 80 g/m is very common. Fabric ""weight"" is often specified as mass per unit area, grams per square meter (gsm) or ounces per square yard. It is also sometimes specified in ounces per yard in a standard width for the particular cloth. One gram per square meter equals 0.0295 ounces per square yard; one ounce per square yard equals 33.9 grams per square meter. It is"
"or the acceleration due to gravity on Earth. ""Manometric units"" are units such as ""millimeters of mercury"" or ""centimeters of water"" that depend on an assumed density of a fluid and an assumed acceleration due to gravity. The use of these units is discouraged. Nevertheless, manometric units are routinely used in medicine and physiology, and they continue to be used in areas as diverse as weather reporting and scuba diving. The millimeter of mercury by definition is ( × × ), which is approximated with known accuracies of density of mercury and standard gravity. The torr is defined as of"
"unit of mass, formula_9, is equal to the product of its linear mass density, formula_10, and the infinitesimal unit of length, formula_11: The linear mass density can then be understood as the derivative of the mass function with respect to the one dimension of the rod (the position along its length formula_13) The SI unit of linear mass density is the kilogram per meter (kg/m). Linear density of fibers and yarns can be measured by many methods. The simplest one is to measure a length of material and weigh it. However, this requires a large sample and masks the variability"
"meter. There are two systems used for presenting linear density, direct and indirect. When the direct method is used the length is fixed and the weight of yarn is measured, for example, tex gives the weight in grams of one kilometer of yarn. An indirect method fixes the weight and gives the length of yarn created. The textile industry has a long history and there are various units in use. Tex is more likely to be used in Canada and Continental Europe, while denier remains more common in the United States and United Kingdom. The International System of Units uses"
"per cubic metre (kg/m) and the cgs unit of gram per cubic centimetre (g/cm) are probably the most commonly used units for density. One g/cm is equal to one thousand kg/m. One cubic centimetre (abbreviation cc) is equal to one millilitre. In industry, other larger or smaller units of mass and or volume are often more practical and US customary units may be used. See below for a list of some of the most common units of density. A number of techniques as well as standards exist for the measurement of density of materials. Such techniques include the use of"
"Area density The areal density (also known as area density, surface density, superficial density, or density thickness) of a two-dimensional object is calculated as the mass per unit area. The SI derived unit is: kilogram per square metre (kg·m). In the paper and fabric industries, it is called grammage and is expressed in grams per square meter (gsm); for paper in particular, it may be expressed as pounds per ream of standard sizes (""basis ream""). It can be calculated as: or where, A special type of area density is called column (mass) density (also columnar mass density), denoted ""ρ"" or"
"Maund The maund is the anglicized name for a traditional unit of mass used in British India, and also in Afghanistan, Persia and Arabia: the same unit in the Moghul Empire was sometimes written as mann or mun in English, while the equivalent unit in the Ottoman Empire and Central Asia was called the ""batman"". At different times, and in different South Asian localities, the mass of the maund has varied, from as low as 25 pounds (11 kg) to as high as 160 pounds (72½ kg): even greater variation is seen in Persia and Arabia. In British India, the"
"quantity of type columnar mass density. Area density The areal density (also known as area density, surface density, superficial density, or density thickness) of a two-dimensional object is calculated as the mass per unit area. The SI derived unit is: kilogram per square metre (kg·m). In the paper and fabric industries, it is called grammage and is expressed in grams per square meter (gsm); for paper in particular, it may be expressed as pounds per ream of standard sizes (""basis ream""). It can be calculated as: or where, A special type of area density is called column (mass) density (also"
"Bone density Bone density, or bone mineral density (BMD), is the amount of bone mineral in bone tissue. The concept is of mass of mineral per volume of bone (relating to density in the physics sense), although clinically it is measured by proxy according to optical density per square centimetre of bone surface upon imaging. Bone density measurement is used in clinical medicine as an indirect indicator of osteoporosis and fracture risk. It is measured by a procedure called densitometry, often performed in the radiology or nuclear medicine departments of hospitals or clinics. The measurement is painless and non-invasive and"
"measured or guessed based on a comparable paper's specification. Caliper is usually measured in micrometres (µm), or in the US also in mils (1 mil = 0.001 in = 25.4 µm). Commonly, 20-lb bond ranges between roughly in thickness. Grammage Grammage and basis weight, in the pulp and paper and the fabric industries, are the areal density of a paper or fabric product, that is, its mass per unit of area. Two ways of expressing grammage are commonly used: In the metric system, the mass per unit area of all types of paper and paperboard is expressed in terms of"
"the wire (the position along its length, formula_7) Notice that these steps were the exact same ones we took before to find :formula_28 The SI unit of linear charge density is the coulomb per meter (C/m). In drawing or printing, the term linear density also refers to how densely or heavily a line is drawn. Common units include: Linear density Linear density is the measure of a quantity of any characteristic value per unit of length. Linear mass density (titer in textile engineering, the amount of mass per unit length) and linear charge density (the amount of electric charge per"
"Chondrometer A chondrometer is a measuring instrument designed to determine the bulk density of grain. Grain density is measured in kilograms per hectolitre (Imp. pounds per bushel). It is thus also referred to as the hectolitre mass. Density is a guide to wheat quality and determines the price and the space required to store and transport the crop. A chondrometer consists of a filling hopper, a measuring container, a straightedge, a weighing instrument. The filling hopper allows the grain to fall into the measuring container in a reproducible pattern as several measurements are taken, and all readings need to be"
"Millimeters, water gauge Millimeters, water gauge, also known as a millimetre of water (US spelling millimeter of water) or millimetres water column and abbreviated to mmwg, mmHO or mmwc, respectively, is a less commonly used unit of pressure. It may be defined as the pressure exerted by a column of water of 1 mm in height at 4 °C (temperature of maximum density) at the standard acceleration of gravity, so that = × × 1 mm = ≈ , but conventionally a nominal maximum water density of is used, giving . In limited and largely historic contexts it may vary"
"volume: where ""N"" is the total number of objects in a volume ""V"". Here it is assumed that ""N"" is large enough that rounding of the count to the nearest integer does not introduce much of an error, however ""V"" is chosen to be small enough that the resulting ""n"" does not depend much on the size or shape of the volume ""V"". In SI units, number density is measured in m, although cm is often used. However, these units are not quite practical when dealing with atoms or molecules of gases, liquids or solids at room temperature and atmospheric"
"Mud weight In the oil industry, mud weight is the density of the drilling fluid and is normally measured in pounds per gallon (lb/gal) (ppg) or pound cubic feet (pcf) . In the field it is measured using a mud scale or mud balance. In conventional drilling fluids, barite is used to increase the density. Although other additives such as halite (salt) or calcium carbonate can also be used. Mud weight can be decreased by dilution or solids control equipment such as an industrial centrifuge, desilter, desander and shale shaker . Mud weight use to control the trapped fluids or"
"called specific weight. For a pure substance the density has the same numerical value as its mass concentration. Different materials usually have different densities, and density may be relevant to buoyancy, purity and packaging. Osmium and iridium are the densest known elements at standard conditions for temperature and pressure but certain chemical compounds may be denser. To simplify comparisons of density across different systems of units, it is sometimes replaced by the dimensionless quantity ""relative density"" or ""specific gravity"", i.e. the ratio of the density of the material to that of a standard material, usually water. Thus a relative density"
"equivalent to the pascal, that is usually not used for this purpose). Small amounts can be expressed in newton-millimetres per cubic millimetre. In U.S. customary units, torque density is expressed in foot-pounds force per cubic foot, or inch-pounds force per cubic inch or ounce-force inches per cubic inch. Torque density Torque density is a measure of the torque-carrying capability of a mechanical component. It is the ratio of torque capability to volume and is expressed in units of torque per volume. Torque density is a system property since it depends on the design of each element of the component being"
"grams per cubic metre, grams per square metre, and metres, respectively. Column number density refers instead to a number density type of quantity: the number or count of a substance—rather than the mass—per unit area integrated along a path: It is a quantity commonly retrieved by remote sensing instruments, for instance the Total Ozone Mapping Spectrometer (TOMS) which retrieves ozone columns around the globe. Columns are also returned by the differential optical absorption spectroscopy (DOAS) method and are a common retrieval product from nadir-looking microwave radiometers. A closely related concept is that of ice or liquid water path, which specifies"
"acquired. Density meter A density meter, also known as a densimeter, is a device that measures the density. Density is usually abbreviated as either formula_1 or formula_2. Typically, density either has the units of ""formula_3"" or ""formula_4"". The most basic principle of how density is calculated is by the formula: Where: Many density meters can measure both the wet portion and the dry portion of a sample. The wet portion comprises the density from all liquids present in the sample. The dry solids comprise solely of the density of the solids present in the sample. A density meter does not"
"Grammage Grammage and basis weight, in the pulp and paper and the fabric industries, are the areal density of a paper or fabric product, that is, its mass per unit of area. Two ways of expressing grammage are commonly used: In the metric system, the mass per unit area of all types of paper and paperboard is expressed in terms of grams per square meter (g/m). This quantity is commonly called ""grammage"" in both English and French (ISO 536), though printers in most English-speaking countries still refer to the ""weight"" of paper. Typical office paper has 80 g/m, therefore a"
"is used to measure the effect that the drilling fluid has on the gamma ray detection. This result is then used to correct the long-spaced detector. Assuming that the measured bulk density (formula_1) only depends on matrix density (formula_8) and fluid density (formula_9), and that these values are known along the wellbore, porosity (formula_10) can be inferred by the formula Common values of matrix density formula_8 (in g/cm³) are: This method is the most reliable porosity indicator for sandstones and limestones because their density is well known. On the other hand, the density of clay minerals such as mudstone is"
"kilogram per meter for linear density. The following table summarizes several measures of linear density and gives their conversion factors. Denier () or den (abbreviated D), a unit of measure for the linear mass density of fibers, is the mass in grams per 9000 meters of the fiber. The denier is based on a natural reference: a single strand of silk is approximately one denier; a 9000-meter strand of silk weighs about one gram. The term ""denier"" comes from the French denier, a coin of small value (worth ""sou""). Applied to yarn, a denier was held to be equal in"
"Molar mass constant The molar mass constant, symbol ""M"", is a physical constant which relates relative atomic mass and molar mass. Its value is defined to be 1 g/mol in SI units. The molar mass constant is important in writing dimensionally correct equations. It is common to see phrases such as However, atomic weight, i.e., relative atomic mass, is a dimensionless quantity, and cannot take the units of grams per mole. Formally, the operation is the multiplication by a constant which has the value 1 g/mol, that is the molar mass constant. The molar mass constant is unusual (but not"
"Density meter A density meter, also known as a densimeter, is a device that measures the density. Density is usually abbreviated as either formula_1 or formula_2. Typically, density either has the units of ""formula_3"" or ""formula_4"". The most basic principle of how density is calculated is by the formula: Where: Many density meters can measure both the wet portion and the dry portion of a sample. The wet portion comprises the density from all liquids present in the sample. The dry solids comprise solely of the density of the solids present in the sample. A density meter does not measure"
"""piki"" were used to measure cloth. The measurement for silks was equal to 25 inches, and for linen and woolens it was equal to 27 inches. The ""piki"" was sometimes regarded as equal to a metre and a kilometre was called a ""stadion"". The metre was introduced in a royal decree of 1836, and was originally subdivided in 10 ""palms"", 100 ""digits"" and 1000 ""lines"". Units used to measure mass were: 1 ""dramme"" = 3.2 g 1 ""livre"" (also known as a pound) (Venetian) = 450 g 1 ""mina"" = 1.5 kg 1 ""royal mine"" 1.5 kg 1 ""oka"" ="
"Candy (unit) The candy or candee (Marathi: खंडी, ""khaṇḍī""; Tamil: கண்டி, ""kṇṭi""; Malayalam: ""kaṇḍi"", ""kaṇṭi""), also known as the maunee, was a traditional South Asian unit of mass, equal to 20 maunds and roughly equivalent to 500 pounds avoirdupois (227 kilograms). It was most used in southern India, to the south of Akbar's empire, but has been recorded elsewhere in South Asia. In Marathi, the same word was also used for a unit of area of 120 bighas (25 hectares, very approximately), and it is also recorded as a unit of dry volume. The candy was generally one of the"
"maund was first standardized in the Bengal Presidency in 1833, where it was set equal to 100 Troy pounds (82.28 lbs. av.). This standard spread throughout the British Raj. After the independence of India and Pakistan, the definition formed the basis for metrication, one maund becoming exactly 37.3242 kilograms. A similar metric definition is used in Nepal. In its southern plains one Mann equals 40 Kilograms and is generally used to measure agricultural output. The Old English, 'maund' may also be the origin of Maundy Thursday. As a verb, 'maund' : to beg; as a noun, 'a maund' : a"
"of cotton, is measured by its count. This refers to the number of hanks of 840 yards than collectively weigh 1 lb. 1-40 is called a coarse count in the United Kingdom, 40-80 is a medium count and 80 to 160 is fine. Consequently, an Oldham count, is a count between 1 and 40. In the United States, the terms are used differently. There were two other booms, 1883–84 and 1889–90. In all, from 1858–96, Oldham formed 154 limiteds, or more than twice as much as found in Bolton. The only other part of the textile industry where the limited"
"separation processes. For example, charge density influences metal-metal bonding and hydrogen bonding. For separation processes such as nanofiltration, the charge density of ions influences their rejection by the membrane. Charge density In electromagnetism, charge density is a measure of the amount of electric charge per unit length, surface area, or volume. ""Volume charge density"" (symbolized by the Greek letter ρ) is the quantity of charge per unit volume, measured in the SI system in coulombs per cubic meter (C•m), at any point in a volume. ""Surface charge density"" (σ) is the quantity of charge per unit area, measured in coulombs"
"is the charge density (SI unit: coulombs per cubic metre), in which ""n""(r, ""t"") is the number of particles per unit volume (""number density"") (SI unit: m), ""q"" is the charge of the individual particles with density ""n"" (SI unit: coulombs). A common approximation to the current density assumes the current simply is proportional to the electric field, as expressed by: where E is the electric field and ""σ"" is the electrical conductivity. Conductivity ""σ"" is the reciprocal (inverse) of electrical resistivity and has the SI units of siemens per metre (S⋅m), and E has the SI units of newtons"