ISO 8028:2024

Overview

ISO 8028:2024 specifies requirements for rubber and/or plastics hoses and hose assemblies for airless paint spraying. The fourth edition defines four hose types (A, B, C, D) that differ by working/burst pressure and operating temperature, and covers materials, construction, testing, marking, packaging and storage for hoses used with solvent-containing paints.

Key topics and technical requirements

• Hose types and service limits
  • Type A: working pressure 20 MPa (200 bar), temperature −20 °C to +50 °C
  • Type B: working pressure 36 MPa (360 bar), temperature −20 °C to +50 °C
  • Type C: working pressure 20 MPa (200 bar), temperature −20 °C to +80 °C
  • Type D: working pressure 36 MPa (360 bar), temperature −20 °C to +80 °C
• Construction and materials
  • Smooth seamless rubber or plastics lining, wire or textile reinforcement, rubber or plastics cover (or hybrid)
  • Hose must incorporate an electrically conductive element (conductive compounds or bonding wires) connected to end fittings
  • Permanent, electrically conducting couplings that have passed the required tests
• Performance and tests
  • Hydrostatic (proof/burst) tests per ISO 1402 - specified proof and minimum burst pressures (see Table 2 in the standard)
  • Impulse test per ISO 6803 - 125% of working pressure; 150 000 pulses at 50 °C (A/B) or 80 °C (C/D) without failure
  • Electrical continuity per ISO 8031 - assemblies must meet the standard’s resistance limit (see ISO 8031)
  • Adhesion per ISO 8033 - minimum adhesion values for lining/cover to reinforcement (0.8–0.9 kN/m depending on ID)
  • UV (plastic covers) and ozone (rubber covers) resistance tests (ISO 30013, ISO 7326)
  • Lining chemical compatibility per ISO 1817 with defined maximum volume swell for solvents (toluene, acetone, ethanol, white spirit, dioctylphthalate)
• Quality, testing frequency and documentation
  • Type and routine test schedules defined (Annex A); manufacturers must test after design or material/process changes
  • Test reports and durable marking (manufacturer, ISO 8028, type, working pressure, max temp, ID, conductivity indicator, manufacture date/lot) required

Applications and who uses this standard

ISO 8028 is intended for:

• Hose and hose-assembly manufacturers designing airless paint-spraying hoses
• Spray equipment OEMs and system integrators specifying hoses for high-pressure, solvent-based paint systems
• Test laboratories and quality-control personnel performing hydrostatic, impulse and electrical-continuity testing
• Procurement, safety and maintenance engineers who must ensure compliance, traceability and safe handling of airless spray hoses

Keywords: ISO 8028, airless paint spraying hoses, hose assemblies, hydrostatic test, impulse test, electrical continuity, burst pressure, hose marking, rubber hoses, plastic hoses.

Related standards

Normative references in ISO 8028 include:

• ISO 1402, ISO 1817:2024, ISO 6803, ISO 7326:2016, ISO 8031:2020, ISO 8033, ISO 8330, ISO 30013:2011 and ISO 8331 (packaging/storage). Users should consult these documents for test methods and definitions.