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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 grammage are commonly used: Expressed in grams (g) per square metre (g/m 2), regardless of its thickness . [1] This is the measure used in most parts of the world.
kilopounds per square inch, that is, thousands of pounds per square inch KSI (or ksi), also abbreviated KPSI or kpsi, is a common non- SI measurement scale for ultimate tensile strength , that is, the number of units of tensile force that a material can endure per unit of cross-sectional area before breaking.
The foot (standard symbol: ft) [1] [2] is a unit of length in the British imperial and United States customary systems of measurement. The prime symbol, ′, is commonly used to represent the foot. [3] In both customary and imperial units, one foot comprises 12 inches, and one yard comprises three feet.
Metric units are units based on the metre, gram or second and decimal (power of ten) multiples or sub-multiples of these. According to Schadow and McDonald, [ 1 ] metric units, in general, are those units "defined 'in the spirit' of the metric system, that emerged in late 18th century France and was rapidly adopted by scientists and engineers.
Grammage is the weight per meter square of any material. It is reported in g/m2; Corrugated fiberboard is anisotropic; many of its properties are highly directional. For example, edge crush, bending stiffness, tensile, and surface characteristics are different, depending on the orientation to the flutes and the machine direction of manufacture.
milliwatt per square metre: mW/m 2: heat flux density, irradiance: g⋅s −3: square metre per second: m 2 /s kinematic viscosity, thermal diffusivity, diffusion coefficient m 2 ⋅s −1: millipascal second: mPa⋅s = mN⋅s/m 2: dynamic viscosity: m −1 ⋅g⋅s −1: gram per metre: g/m linear mass density: m −1 ⋅g gram per second: g/s ...
The International System of Units, internationally known by the abbreviation SI (from French Système international d'unités), is the modern form of the metric system and the world's most widely used system of measurement. It is the only system of measurement with official status in nearly every country in the world, employed in science ...
The board foot or board-foot is a unit of measurement for the volume of lumber in the United States and Canada [1].It equals the volume of a board that is one foot (30.5 cm) in length, one foot in width, and one inch (2.54 cm) in thickness, or exactly 2.359 737 216 liters.