BS ISO 23933:2006

Foreword
1 Scope
2 Normative references
3 Classification
4 Requirements
  4.1 Limits of application
  4.2 Qualification
  4.3 Materials
  4.4 Construction
  4.5 Inner tube requirements
  4.6 Hose assembly
  4.7 Fitting threads
  4.8 Part numbering of interchangeable parts
  4.9 Identification of products
  4.10 Workmanship
  4.11 Hose assembly - Test and performance requirements
5 Quality assurance
  5.1 Responsibility for inspection
  5.2 Classification of inspections
  5.3 Qualification inspections
  5.4 Quality conformance inspections
  5.5 Test conditions
  5.6 Inspection methods
6 Preparation for delivery
  6.1 Storage and packaging
  6.2 Marking
7 Ordering data
Annex A (informative) Equivalent materials
Annex B (informative) Qualification procedures and fire
        resistance specifications
Bibliography

Provides requirements for aramid reinforced lightweight polytetrafluoroethylene (PTFE) hose assemblies for use in aircraft hydraulic, oil and fuel systems at temperatures between -55 degree C and 135 degree C (-65 degree F and 275 degree F) and at a nominal pressure of 21000 kPa (210 bar) (3046 psi) or 20684 kPa (3000 psi).

This International Standard specifies requirements for aramid reinforced lightweight polytetrafluoroethylene (PTFE) hose assemblies for use in aircraft hydraulic, oil and fuel systems at temperatures between−55°C and 135°C (−65 °F and 275 °F) and at a nominal pressure of 21000kPa (210 bar) (3046 psi) or 20684kPa (3000 psi). The hose assemblies are also suitable for use within the same temperature and pressure limitations in aircraft pneumatic systems where some gaseous diffusion through the wall of the PTFE liner may be tolerated.