ISO 703:2017 pdf free

ISO 703:2017 pdf free.Conveyor belts一Transverse flexibility (troughability)一Test method
This document specifies a test method for determining the transverse flexibility (troughability) of a conveyor belt, expressed as a ratio, F/L. The method is not suitable or valid for light conveyor belts as described in ISO 21183-1.
NOTE The transverse “flexibility” determined by the method described in this document is only indirectly associated with the inverse of flexural modulus as specified in ISO 178. Nor does it take into consideration the differences in “flexibility” as exhibited by three-point and four-point bending, which takes account of the flexural strain and the thickness of the test piece.
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 583, Conveyor belts with a textile carcass – Total belt thickness and thickness of constitutive elements – Test methods
ISO 7590, Steel cord conveyor belts一Methods for the determination of total thickness and cover thickness
ISO 18573, Conveyor belts一Test atmospheres and conditioning periods
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
一IEC Electropedia: available at http://www.electropedia.org/
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Two clamps, to be attached to the ends of the test piece, with suspension lugs for attachment to the suspending wires. The construction of the clamps shall allow for a rigid bar or straightedge to be placed in contact with the belt, as shown in Figure 2, to establish the datum line necessary for measuring the deflection. The clamps shall be sufficiently wide and rigid to maintain the width of the test pieces free from curvature, and shall exert no bending moment which might influence the deflection of the test piece.
Four steel suspension wires, of equal length, each with adjustable stirrups on both ends for attachment to the horizontal bars and clamps. The attachments to the horizontal bars and clamps should not impede the free movement of the adjustable stirrups when maintaining the suspension wires in the vertical during the test.ISO 703 pdf download.