BS 490-1:1990

Foreword
Committees responsible
Specification
1 Scope
2 Definitions
3 Designation
4 Construction
5 Fabric
6 Length
7 Width
8 Cover material
9 Tolerances on cover thickness
10 Transverse joints in multi-ply type belting
11 Longitudinal joints in multi-ply type belting
12 Freedom from defects
13 Tolerance on belt thickness across the width
14 Elongation
15 Full thickness tensile strength
16 Adhesion
17 Troughability
18 Sampling and testing
19 Marking
Appendices
A Items to be agreed between manufacturer and
    purchaser
B Recommendations for the minimum grade and thickness
    of rubber covers according to service conditions
C Information to be supplied by the purchaser
Tables
1 Tolerances on open-end lengths of belting
2 Tolerances on net endless lengths of belting
3 Widths and tolerances on width of conveyor belting
4 Grade of rubber cover
5 Tolerances on cover thickness
6 Maximum number of longitudinal joints
7 Minimum full thickness tensile strength
8 Minimum adhesion strength
9 Minimum troughability
10 Number of samples

Describes requirements for rubber and/or plastics conveyor belting of textile construction for general use on flat or troughed idlers. Does not meet any requirement for fire performance or anti static properties and is not suitable for use in underground locations or in applications where similar hazards exist. Attention is needed in its application to ensure that fire involving the conveyor belt does not create a hazard. Does not meet the legislative requirements of agri foodstuffs conveyor belting. Recommendations for the minimum grade and thickness of rubber covers are given.