NF EN ISO 22721, T47-030 (08/2023)

This document specifies the requirements for rubber or plastic coated textile structure conveyor belts for use in underground mines and arranged on flat or troughed rollers. It does not apply to lightweight conveyor belts described in ISO 21183-1. This document does not include requirements for plastic coverings. These are subject to agreement between the manufacturer and the buyer, taking into account the type of plastic to be used. Associated matters which are not requirements of this document, but which are recommended to be agreed upon by the manufacturer and the purchaser, are included in Annex A. Information which is recommended for the purchaser of a belt to be supplied with an order are given in Appendix B. The ability of a belt to have a straight run can only be assessed once the belt is installed. The requirements in this area are, therefore, outside the scope of this document; nevertheless, recommendations regarding lateral drift are given in Appendix C. Attention is drawn to local safety regulations which may exist where the belts are to be used.
(Automatic translation from French)