GB/T 14905-2020 Rubber and plastics hoses - Determination of adhesion between components
1 Scope
This document specifies methods for the determination of the adhesion between lining and
reinforcement, between cover and reinforcement, between reinforcement layers, between cover and outer lamination (thin layer of material outside the cover for protection) and between lining and inner lamination (thin layer of material inside the lining to reduce permeation of fluid into the lining). It covers all bore sizes and the following types of hose construction:
- woven textile fabric;
- braided textile fabric;
- knitted textile fabric;
- circular-woven textile fabric;
- textile spiral;
- textile cord;
- wire braid;
- wire spiral;
- hoses containing a supporting helix.
Adequate adhesion between the various components of a hose is essential if it is to perform satisfactorily in service.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 5893 Rubber and plastics test equipment - Tensile, flexural and compression types (constant rate of traverse) - Specification
ISO 6133 Rubber and plastics - Analysis of multi-peak traces obtained in determinations of tear strength and adhesion strength
ISO 23529 Rubber - General procedures for preparing and conditioning test pieces for physical test methods
3 Terms and definitions
Contents Foreword I 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Apparatus 6 Test pieces 7 Procedure 8 Expression of results 9 Test report Bibliography
