Overview
EN ISO 8033:2017 (identical to ISO 8033:2016) specifies standardized methods for the determination of adhesion between components of rubber and plastics hoses. The standard covers adhesion between lining, reinforcement layers, cover, outer and inner laminations, and applies to all bore sizes and a wide range of hose constructions. Adequate adhesion between hose components is critical to ensure long‑term performance, leak prevention and mechanical integrity in service.
Key topics and technical requirements
- Scope of testing: adhesion between lining and reinforcement, cover and reinforcement, reinforcement layers, cover and outer lamination, lining and inner lamination.
- Hose constructions covered:
- woven, braided, knitted and circular‑woven textile fabrics
- textile spiral, textile cord
- wire braid, wire spiral
- hoses containing a supporting helix
- Test principle: use of standardized test pieces of defined types and dimensions to measure adhesion strength under controlled conditions.
- Apparatus requirements:
- power‑driven test machine with dynamometer, constant traverse rate and recorder
- inertialess dynamometer and suitable grips and mandrel
- test machine compliance with ISO 5893 (class 0,5 or 1)
- Test piece preparation and conditioning: specified types (Type 1–Type 8), selection rules, preparation procedures and conditioning times (referenced to ISO 23529).
- Measurement and reporting: procedures for insertion, test speed, measurement of adhesion traces and expression of results; reference to ISO 6133 for multi‑peak trace analysis.
- Normative references: ISO 5893, ISO 6133, ISO 23529 and terminology in ISO 8330 are integral to correct application.
Applications and who uses this standard
- Hose manufacturers use EN ISO 8033:2017 for product development, quality control and ensuring component bonding meets design requirements.
- Test laboratories and certification bodies apply the method for compliance testing, type approval and failure investigation.
- R&D and materials engineers use adhesion data to select rubbers, fabrics, wire reinforcements and laminates, and to optimize vulcanization and bonding processes.
- Purchasers and specifiers in industries such as automotive, hydraulic systems, oil & gas, and industrial fluid transfer reference this standard when specifying hose performance.
Related standards
- ISO 5893 - tensile and test machine specifications (referenced for equipment class)
- ISO 6133 - analysis of multi‑peak traces for tear/adhesion testing
- ISO 23529 - preparation and conditioning of test pieces
- ISO 8330 - hose terminology
EN ISO 8033:2017 is essential for ensuring reliable adhesion testing of rubber and plastics hoses and for improving hose safety, lifetime and operational performance.