BS ISO 8066-3:2020
$167.15
Rubber and plastics hoses and hose assemblies for automotive air conditioning. Specification – Refrigerant 1234yf
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 38 |
This document specifies the requirements for rubber or thermoplastic hoses and hose assemblies used for circulating liquid and gaseous R1234yf (tetrafluoropropene) in the air-conditioning systems of automobiles. The hoses and hose assemblies are designed in such a way as to restrict losses of refrigerant and contamination of the system. The operational temperature range is ?40 °C to +125 °C.
Due to the critical relationship between the hose and coupling for this application, a requirement that the coupling to be used in service be used for testing has been laid down.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | Foreword |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 10 | 4 Classification 4.1 Types 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 |
| 11 | 4.2 Pressure classes 4.2.1 High — Discharge and liquid applications. 4.2.2 Low — Suction application. |
| 12 | 4.3 Moisture-ingression grades 4.4 Refrigerant-permeation grades 5 Dimensions 5.1 Hose inside diameters 5.2 Hose wall thickness variation |
| 13 | 6 Testing and performance requirements 6.1 Test conditions 6.2 Leakage 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 6.3.1 Requirement |
| 14 | 6.3.2 Procedure 6.4 Ageing 6.4.1 Requirement 6.4.2 Procedure 6.5 Low-temperature test 6.6 Vacuum resistance 6.6.1 General 6.6.2 Requirement 6.6.3 Procedure |
| 15 | 6.7 Length change under pressure 6.7.1 Requirement 6.7.2 Procedure 6.8 Minimum bursting pressure 6.9 Proof pressure 6.9.1 Requirement 6.9.2 Procedure 6.10 Extraction by R1234yf |
| 16 | 6.11 Ozone resistance 6.12 Hose cleanliness 6.12.1 Requirement 6.12.2 Procedure 6.13 Impulse test 6.13.1 Requirement 6.13.2 Procedure 6.14 Moisture ingression |
| 17 | 6.15 Coupling integrity (sealability) 7 Frequency of testing 8 Marking |
| 18 | 9 Test report 10 Recommendations for packaging and storage |
| 19 | Annex A (Normative) Determination of refrigerant permeation |
| 22 | Annex B (normative) Low-temperature test |
| 23 | Annex C (normative) Determination of amount of matter extracted from hoses by liquid R1234yf |
| 24 | Annex D (normative) Impulse test |
| 28 | Annex E (normative) Moisture ingression test |
| 32 | Annex F (normative) Coupling integrity (sealability) |
| 34 | Annex G (normative) Test frequency |
| 35 | Annex H (informative) Production tests |
| 36 | Bibliography |
