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Standard Test Method for Coefficient of Static Friction of Uncoated Writing and Printing Paper by Use of the Inclined Plane Method
Automatische name übersetzung:
Standard Test Method for Haftreibungskoeffizienten von Uncoated Schreib- und Druckbedingungenvon der schiefen Ebene Method
NORM herausgegeben am 10.12.1997
Bezeichnung normen: ASTM D4918-97
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 10.12.1997
SKU: NS-29135
Zahl der Seiten: 3
Gewicht ca.: 9 g (0.02 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
Coefficient of friction, Copy materials/products, Copy materials/products-printing/writing paper, Grain direction coefficient of friction, Horizontal plane method, Printing paper, Writing paper, coefficient of static friction of uncoated writing/printing paper, by, inclined plane method, test,, Machine direction coefficient of friction, coefficient of static frictionof uncoated writing/printing paper, by, inclined plane method, test,,Order Form
1. Scope | ||||||||||||||||
1.1 This test method describes a procedure for the determination of the coefficient of static friction of paper measured when sliding against itself. The inclined plane procedure is used. 1.2 Although this test method is basic in concept, the precision statement has been developed on uncoated writing and printing papers. While the use of this test method is recommended for those grades only, it may be used with other types of paper giving specific attention to special paper characteristics and with the understanding that the precision may not be the same. 1.3 Static coefficient of friction (COF) relates to the force required to initiate movement between two surfaces while kinetic COF relates to the force required to cause continuation of the movement at uniform speed. Kinetic COF cannot be measured by this test method. Both static and kinetic COF can be measured by Test Method D4917. 1.4 A horizontal plane method is described in Test Method D4917, which gives similar results. The choice of approach depends upon the equipment available and the means of measurement. 1.5 The determination of this characteristic for corrugated and solid fiberboard is described in Test Methods D4521 and D3248. The test methods differ in that, in Test Methods D4521 and D3248, the two specimens are allowed to slip upon one another three times before the angle of inclination is determined, while in this test method, the angle is determined on the first slip. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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