ISO 252:2023 PDF

Scope: This document specifies two test methods, A and B, for determining the adhesion strength between constitutive elements of a conveyor belt, i.e. between plies and between covers and carcass. Basic test conditions are in conformity with ISO 36. It is applicable to all types of construction of conveyor belting with the exception of belts containing steel cord reinforcement, and textile-reinforced belts with a full-thickness tensile strength of less than 160 N/mm. It is not suitable or valid for light conveyor belts as described in ISO 21183-1[1]. NOTE Methods A and B are alternative options, but the mean adhesive force values calculated for the two methods can be different. Also, as both methods might not be equally suitable for all belt constructions, it is advisable that the advice of the belt manufacturer be sought.

ISO 252:2023 Referenced Document

ISO 18573 Conveyor belts - Test atmospheres and conditioning periods
ISO 36 Size designation of clothes; Men's and boys' outerwear garments
ISO 6133 Rubber and plastics - Analysis of multi-peak traces obtained in determinations of tear strength and adhesion strength

2023 ISO 252:2023 Conveyor belts — Adhesion between constitutive elements — Test methods
2007 ISO 252:2007 Conveyor belts - Adhesion between constitutive elements - Test methods
1988 ISO 252:1988 Conveyor belts; ply adhesion between constitutive elements; test methods and requirements
1975 ISO 252:1975 Conveyor belts — Minimum requirements for ply adhesion and method of test