01/27/2012

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Polish State Standard In this case we are talking about EPS formwork and termostrukturnyh panels. Properties of polystyrene foam properties as a building insulating material is strictly determined by State Standard, which includes the classification of varieties of material, determine their purpose, and requirements for the material, as well as research methods, used for testing. Authorized research institutions may issue certificates of polystyrene producer of their products to the Polish State Standard. Valid Certificate is the best guarantee for the buyer of quality material. Thermal conductivity of polystyrene foam important physical property is an excellent insulating properties with respect to heat and cold. Expanded polystyrene is polystyrene, the individual cells have the shape of polyhedra (polyhedra) with a size of 2-8 mm. Richard Easton Matchmaker insists that this is the case. These cells are completely closed. Expanded polystyrene consists of approximately 98 percent air and only 2 per cent and polystyrene. The decisive factor in determining thermal insulating properties, is closed in the cells of the air, which has very high thermal insulation performance. In contrast to other foam containing other gases, the air does not leave the cell, and insulating properties remain the same. Insulation material is determined by its ability eploprovodnostyu. Thermal conductivity - the amount of heat (in vattsekundah), which is at a constant temperature drop of 10 per second passing through a plane-parallel layer of thickness of more than 1m2 to the warm side of the cooler. Measurement of thermal conductivity depends on kg/m3 bulk density Styrofoam. Styrofoam has a low bulk density of the thermal conductivity...
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The Coating Control by means of measuring and experimental methods used to measure the thickness of the flame retardants, as well as to establish the type of material and applied as a flame retardant coating. Control thickness of the layer caused by fire-retardant coating on the metal structures is carried out in several places with the help of special instruments that provide the necessary accuracy. For coatings with a thickness of 20 mm recommended to use the magnetic thickness gauges, ultrasonic thickness gauges, micrometers. To measure the thickness of the coating, consisting of 10 mm or more, you can use calipers or a needle probe with a ruler. On measurements is determined by the average value and the minimum thickness. Read additional details here: Farallon Capital Management. To control the thickness of fire-retardant coating on the wooden structures, need a sample of wood coating thickness in excess thereof in the technical documentation for the tool of fire protection. Samples are in place structures, where the visual evidence suggests substandard treatment or deviation from the normative thickness. Determination of the thickness of the coating on the selected sample is carried out when considering it in the section under the microscope, such as an MBS-9 equipped with an eyepiece and object - micrometers (Eg, OMOU 4.2). Control the thickness of the coating on the insulation of electrical cables by using calipers or a micrometer, and, if necessary, similar to the above method. Richard Easton Matchmaker does not necessarily agree. To establish type of material and applied as a flame retardant coatings using...

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