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Paper Density
Paper density is a paper product's mass per unit volume. The density can be calculated by dividing the grammage of paper (in grams per square metre or "gsm") by its caliper (usually in micrometres, occasionally in mils). The "ISO 534:2011, Paper and board — Determination of thickness, density and specific volume" indicates that the paper density is expressed in grams per cubic centimeter (g/cm3). See also * Grammage * Density Density (volumetric mass density or specific mass) is the ratio of a substance's mass to its volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' (or ''d'') can also be u ... ** Area density ** Linear density * References External links Understanding Paper Weights( Staples, Inc.) M-weight CalculatorPaper Weight Calculator Paper Printing {{material-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waage
Waage is a Norwegian surname. Notable people with the surname include: * Anita Waage (born 1971), Norwegian footballer * Benedikt G. Waage (1889–1966), Icelandic athlete and businessman * Dorothy B. Waage (1905–1997), American numismatist * Elsa Waage (born 1959), Icelandic opera singer * Geir Waage (born 1967), Norwegian politician * Hilde Waage (born 1959), Norwegian historian * Hjalmar Waage (1892–1939), Norwegian newspaper editor and writer * Hjelm Waage (1866–1947), Norwegian politician * Inger Waage (1923–1995), Norwegian ceramist * Peter Waage (1833–1900), Norwegian chemist * Roy Waage (born 1963), Norwegian politician * Trond Waage (born 1953), Norwegian activist {{surname, Waage Norwegian-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micrometre
The micrometre (English in the Commonwealth of Nations, Commonwealth English as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American English), also commonly known by the non-SI term micron, is a unit of length in the International System of Units (SI) equalling (SI standard prefix "micro-" = ); that is, one millionth of a metre (or one thousandth of a millimetre, , or about ). The nearest smaller common SI Unit, SI unit is the nanometre, equivalent to one thousandth of a micrometre, one millionth of a millimetre or one billionth of a metre (). The micrometre is a common unit of measurement for wavelengths of infrared radiation as well as sizes of biological cell (biology), cells and bacteria, and for grading wool by the diameter of the fibres. The width of a single human hair ranges from approximately 20 to . Examples Between 1 μm and 10 μm: * 1–10 μm – length of a typical bacterium * 3–8 μm – width of str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Staples, Inc
Staples Inc. is an American office supply retail company headquartered in Framingham, Massachusetts. Founded by Leo Kahn and Thomas G. Stemberg, the company opened its first store in Brighton, Massachusetts on May 1, 1986. By 1996, it had reached the Fortune 500, and it later acquired the office supplies company Quill Corporation. In 2014, in the wake of increasing competition from e-commerce market, Staples began to close some of its locations. In 2015, Staples announced its intent to acquire Office Depot and OfficeMax. However, the purchase was blocked under antitrust grounds due to the consolidation that would result. After the failed acquisition, Staples began to refocus its operations to downplay its brick-and-mortar outlets and place more prominence on its business-to-business (B2B) services. In 2017, after its sale to Sycamore Partners, the company was effectively split into three "independently managed and capitalized" entities sharing the Staples name, separati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 unit length) are two common examples used in science and engineering. The term linear density or linear mass density is most often used when describing the characteristics of one-dimensional objects, although linear density can also be used to describe the density of a three-dimensional quantity along one particular dimension. Just as density is most often used to mean mass density, the term linear density likewise often refers to linear mass density. However, this is only one example of a linear density, as any quantity can be measured in terms of its value along one dimension. Linear mass density Consider a long, thin rod of mass M and length L. To calculate the average linear mass density, \bar\lambda_m, of this one dimensional obje ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Area Density
The area density (also known as areal density, surface density, superficial density, areic density, column density, or density thickness) of a two-dimensional object is calculated as the mass per unit area. The SI derived unit is the "kilogram per square metre" (kg·m−2). In the paper and fabric industries, it is called grammage and is expressed in grams per square meter (g/m2); for paper in particular, it may be expressed as pounds per ream of standard sizes ("basis ream"). A related '' area number density'' can be defined by replacing mass by number of particles or other countable quantity, with resulting units of m−2. Formulation Area density can be calculated as: \rho_A = \frac or \rho_A = \rho \cdot l, where ' is the average area density, ' is the total mass of the object, ' is the total area of the object, ' is the average density, and ' is the average thickness of the object. Column density A special type of area density is called ''column density'' (als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Density
Density (volumetric mass density or specific mass) is the ratio of a substance's mass to its volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' (or ''d'') can also be used: \rho = \frac, where ''ρ'' is the density, ''m'' is the mass, and ''V'' is the volume. In some cases (for instance, in the United States oil and gas industry), density is loosely defined as its weight per unit volume, although this is scientifically inaccurate this quantity is more specifically called specific weight. For a pure substance, the density is equal to its mass concentration. Different materials usually have different densities, and density may be relevant to buoyancy, purity and packaging. Osmium is the densest known element at standard conditions for temperature and pressure. To simplify comparisons of density across different systems of units, it is sometimes replaced by the dimensionless quantity "relative den ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gram Per Cubic Centimeter
The gram per cubic centimetre is a unit of density in International System of Units (SI), and is commonly used in chemistry. Its official SI symbols are g/cm3, g·cm−3, or g cm−3. It is equal to the units gram per millilitre (g/mL) and kilogram per litre (kg/L). It is defined by dividing the gram, a unit of mass, by the cubic centimetre, a unit of volume. It is a coherent unit in the CGS system, but is not a coherent unit of the SI. The density of water is approximately 1 g/cm3, since the gram was originally defined as the mass of one cubic centimetre of water at its maximum density at approximately . Conversions * 1 g/cm3 is equal to: *: = 1000 g/L (exactly) *: = 1000 kg/m3 (exactly) *: ≈ (approximately) *: ≈ (approximately) * 1 kg/m3 = 0.001 g/cm3(exactly) * 1 lb/cu ft ≈ (approximately) * 1 oz/US gal ≈ (approximately) See also * Kilogram per cubic metre The kilogram per cubic metre (symbol: kg·m−3, or kg/m3) is the unit of densi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thousandth Of An Inch
A thousandth of an inch is a derived unit of length in a system of units using inches. Equal to of an inch, a thousandth is commonly called a thou (used for both singular and plural) or, particularly in North America, a mil (plural mils). The words are shortened forms of the English and Latin words for "thousand" ( in Latin). In international engineering contexts, confusion can arise because ''mil'' is a formal unit name in North America but ''mil'' or ''mill'' is also a common colloquial clipped form of millimetre. The units are considerably different: a millimetre is approximately 39 mils. Contexts of use The thou, or mil, is most commonly used in engineering and manufacturing in non-metric countries. For example, in specifying: * The thickness of items such as paper, film, foil, wires, paint coatings, latex gloves, plastic sheeting, and fibers ** For example, most plastic ID cards are about in thickness. ** Card stock thickness in the United States, where mils are also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grammage
Grammage and basis weight, in the pulp and paper industry, are the area density of a paper product, that is, its mass per unit of area. Two ways of expressing the area density of a paper product are commonly used: * Expressed in grams (g) per square metre (g/m2), regardless of its thickness ( caliper)International Standard ISO 536: Paper and board – Determination of grammage. International Organization for Standardization, Geneva. (known as ''grammage''). This is the measure used in most parts of the world. It is often notated as ''gsm'' on paper product labels and spec sheets. * Expressed in terms of the mass per number of sheets of a specific paper size (known as ''basis weight''). The convention used in the United States and a few other countries using US-standard paper sizes is pounds (lb) per ream of 500 (or in some cases 1000) sheets of a given (raw, still uncut) basis size. The traditional British practice is pounds per ream of 480, 500, 504, or 516 sheets of a give ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paper
Paper is a thin sheet material produced by mechanically or chemically processing cellulose fibres derived from wood, Textile, rags, poaceae, grasses, Feces#Other uses, herbivore dung, or other vegetable sources in water. Once the water is drained through a fine mesh leaving the fibre evenly distributed on the surface, it can be pressed and dried. The papermaking process developed in east Asia, probably China, at least as early as 105 Common Era, CE, by the Han Dynasty, Han court eunuch Cai Lun, although the earliest archaeological fragments of paper derive from the 2nd century BCE in China. Although paper was originally made in single sheets by hand, today it is mass-produced on large machines—some making reels 10 metres wide, running at 2,000 metres per minute and up to 600,000 tonnes a year. It is a versatile material with many uses, including printing, painting, graphics, signage, design, packaging, decorating, writing, and Housekeeping, cleaning. It may also be used a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grams Per Square Metre
Grammage and basis weight, in the pulp and paper industry, are the area density of a paper product, that is, its mass per unit of area. Two ways of expressing the area density of a paper product are commonly used: * Expressed in grams (g) per square metre (g/m2), regardless of its thickness ( caliper)International Standard ISO 536: Paper and board – Determination of grammage. International Organization for Standardization, Geneva. (known as ''grammage''). This is the measure used in most parts of the world. It is often notated as ''gsm'' on paper product labels and spec sheets. * Expressed in terms of the mass per number of sheets of a specific paper size (known as ''basis weight''). The convention used in the United States and a few other countries using US-standard paper sizes is pounds (lb) per ream of 500 (or in some cases 1000) sheets of a given (raw, still uncut) basis size. The traditional British practice is pounds per ream of 480, 500, 504, or 516 sheets of a given ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grammage
Grammage and basis weight, in the pulp and paper industry, are the area density of a paper product, that is, its mass per unit of area. Two ways of expressing the area density of a paper product are commonly used: * Expressed in grams (g) per square metre (g/m2), regardless of its thickness ( caliper)International Standard ISO 536: Paper and board – Determination of grammage. International Organization for Standardization, Geneva. (known as ''grammage''). This is the measure used in most parts of the world. It is often notated as ''gsm'' on paper product labels and spec sheets. * Expressed in terms of the mass per number of sheets of a specific paper size (known as ''basis weight''). The convention used in the United States and a few other countries using US-standard paper sizes is pounds (lb) per ream of 500 (or in some cases 1000) sheets of a given (raw, still uncut) basis size. The traditional British practice is pounds per ream of 480, 500, 504, or 516 sheets of a give ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
