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BS ISO 8066-3:2020 Rubber and plastics hoses and hose assemblies for automotive air conditioning. Specification - Refrigerant 1234yf, 2020
- National foreword
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Classification [Go to Page]
- 4.1 Types [Go to Page]
- 4.1.1 General
- 4.1.2 Type A — Rubber, textile-reinforced, rubber-covered
- 4.1.3 Type B — Rubber, wire-reinforced, rubber-covered
- 4.1.4 Type C — Barrier, textile-reinforced, rubber-covered
- 4.1.5 Type D — Thermoplastic, textile-reinforced, thermoplastic-covered
- 4.1.6 Type E — Veneer, textile-reinforced, rubber-covered
- 4.1.7 Type F — Veneer, barrier, thermoplastic liner
- 4.2 Pressure classes [Go to Page]
- 4.2.1 High — Discharge and liquid applications.
- 4.2.2 Low — Suction application.
- 4.3 Moisture-ingression grades
- 4.4 Refrigerant-permeation grades
- 5 Dimensions [Go to Page]
- 5.1 Hose inside diameters
- 5.2 Hose wall thickness variation
- 6 Testing and performance requirements [Go to Page]
- 6.1 Test conditions
- 6.2 Leakage [Go to Page]
- 6.2.1 Method A for type test and production test
- 6.2.2 Procedure for method A
- 6.2.3 Method B for routine test
- 6.2.4 Procedure for method B
- 6.3 Refrigerant permeation [Go to Page]
- 6.3.1 Requirement
- 6.3.2 Procedure
- 6.4 Ageing [Go to Page]
- 6.4.1 Requirement
- 6.4.2 Procedure
- 6.5 Low-temperature test
- 6.6 Vacuum resistance [Go to Page]
- 6.6.1 General
- 6.6.2 Requirement
- 6.6.3 Procedure
- 6.7 Length change under pressure [Go to Page]
- 6.7.1 Requirement
- 6.7.2 Procedure
- 6.8 Minimum bursting pressure
- 6.9 Proof pressure [Go to Page]
- 6.9.1 Requirement
- 6.9.2 Procedure
- 6.10 Extraction by R1234yf
- 6.11 Ozone resistance
- 6.12 Hose cleanliness [Go to Page]
- 6.12.1 Requirement
- 6.12.2 Procedure
- 6.13 Impulse test [Go to Page]
- 6.13.1 Requirement
- 6.13.2 Procedure
- 6.14 Moisture ingression
- 6.15 Coupling integrity (sealability)
- 7 Frequency of testing
- 8 Marking
- 9 Test report
- 10 Recommendations for packaging and storage
- Annex A (Normative) Determination of refrigerant permeation
- Annex B (normative) Low-temperature test
- Annex C (normative) Determination of amount of matter extracted from hoses by liquid R1234yf
- Annex D (normative) Impulse test
- Annex E (normative) Moisture ingression test
- Annex F (normative) Coupling integrity (sealability)
- Annex G (normative) Test frequency
- Annex H (informative) Production tests
- Bibliography [Go to Page]