ISO 8066-4:2023 PDF

Rubber and plastics hoses and hose assemblies for automotive air conditioning — Specification — Part 4: Low vibration transmission type for Refrigerant 1234yf

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Название (английский):

ISO 8066-4:2023

Rubber and plastics hoses and hose assemblies for automotive air conditioning — Specification — Part 4: Low vibration transmission type for Refrigerant 1234yf

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 29
Дата публикации:: 12 июля 2023 г.
Издание:: ISO IS 8066 edition 1 version 1
ICS:: 43.040.60

Язык документа:

ruen

Срок поставки:5 раб. дн. (перевод)

Цена:435 €

Описание (английский):

This document specifies the requirements for rubber hoses and hose assemblies used for low-pressure application of circulating gaseous Refrigerant 1234yf (tetrafluoropropene) (hereinafter referred to as R1234yf) in the air-conditioning systems of automobiles. The hoses and hose assemblies are designed in such a way as to reduce vibration transmission between the engine room and the cabin. The operational temperature range is −40 °C to +80 °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 is laid down.

Технические детали

Технический комитет: ISO/TC 45/SC 1 - Rubber and plastics hoses and hose assemblies
SKU: ISO 8066-4:2023

Abstract

Overview

ISO 8066-4:2023 specifies requirements for rubber and plastics hoses and hose assemblies used in automotive air-conditioning systems carrying gaseous Refrigerant R1234yf (tetrafluoropropene). This part targets low vibration transmission hose assemblies (suction/low-pressure applications) designed to reduce vibration transfer from the engine bay to the cabin. Operational temperature range is −40 °C to +80 °C. Because hose performance is tightly linked to the coupling, the standard requires that the coupling intended for service be used during testing.

Key topics and technical requirements

Construction and materials
- Seamless synthetic rubber inner tube, textile reinforcement (yarn/cord/fabric) and heat- & ozone-resistant synthetic rubber outer cover.
Pressure class
- Specified as low-pressure suction application; working pressure: 1.06 MPa (10.6 bar).
Dimensions
- Typical mean inside diameters include 14, 15, 15.9 (5/8), 19 (3/4) and 25.4 mm (1); other sizes permitted as needed.
Testing and performance
- Gas leakage (Method A for type/production and Method B for routine tests)
- Refrigerant permeation (R1234yf permeation limits and determination)
- Ageing, low-temperature performance, vacuum resistance
- Length change under pressure, minimum bursting pressure and proof pressure
- Extraction by liquid R1234yf; ozone resistance; hose cleanliness
- Impulse (pressure fatigue) testing; moisture ingression grades (ML, Mm)
- Coupling integrity (sealability) - coupling used in service must be tested
- Vibration transmissibility - quantifies low-vibration performance
- Test frequency, marking, test reports, packaging and storage recommendations
Normative annexes
- Detailed test procedures (permeation, low-temperature, impulse, moisture ingression, coupling sealability, vibration transmissibility, etc.)

Applications and users

ISO 8066-4:2023 is intended for:

Automotive OEMs and HVAC system designers specifying R1234yf suction hoses
Hose and hose-assembly manufacturers and suppliers ensuring compliance
Quality and test laboratories performing type, production and routine tests
Aftermarket and service providers replacing or certifying A/C hoses
Regulatory bodies and procurement teams referencing safety, durability and refrigerant compatibility

Practical use: specifying and verifying hoses that minimize cabin vibration while ensuring compatibility, leak-tightness and durability with R1234yf refrigerant in passenger vehicles.

Related standards

ISO 1402 - Hydrostatic testing
ISO 4671 - Measurement of hose dimensions
ISO 8330 - Vocabulary for hoses and assemblies
ISO 7326 - Ozone resistance testing
ISO 23529 - Conditioning of rubber test pieces
ISO/TR 11340 and other parts of the ISO 8066 series for related hose types

Keywords: ISO 8066-4:2023, R1234yf hoses, automotive air conditioning hoses, low vibration transmission, hose assemblies, refrigerant permeation, coupling integrity, hose testing standards.

Overview

Key topics and technical requirements

Construction and materials
- Seamless synthetic rubber inner tube, textile reinforcement (yarn/cord/fabric) and heat- & ozone-resistant synthetic rubber outer cover.
Pressure class
- Specified as low-pressure suction application; working pressure: 1.06 MPa (10.6 bar).
Dimensions
- Typical mean inside diameters include 14, 15, 15.9 (5/8), 19 (3/4) and 25.4 mm (1); other sizes permitted as needed.
Testing and performance
- Gas leakage (Method A for type/production and Method B for routine tests)
- Refrigerant permeation (R1234yf permeation limits and determination)
- Ageing, low-temperature performance, vacuum resistance
- Length change under pressure, minimum bursting pressure and proof pressure
- Extraction by liquid R1234yf; ozone resistance; hose cleanliness
- Impulse (pressure fatigue) testing; moisture ingression grades (ML, Mm)
- Coupling integrity (sealability) - coupling used in service must be tested
- Vibration transmissibility - quantifies low-vibration performance
- Test frequency, marking, test reports, packaging and storage recommendations
Normative annexes
- Detailed test procedures (permeation, low-temperature, impulse, moisture ingression, coupling sealability, vibration transmissibility, etc.)

Applications and users

ISO 8066-4:2023 is intended for:

Automotive OEMs and HVAC system designers specifying R1234yf suction hoses
Hose and hose-assembly manufacturers and suppliers ensuring compliance
Quality and test laboratories performing type, production and routine tests
Aftermarket and service providers replacing or certifying A/C hoses
Regulatory bodies and procurement teams referencing safety, durability and refrigerant compatibility

Practical use: specifying and verifying hoses that minimize cabin vibration while ensuring compatibility, leak-tightness and durability with R1234yf refrigerant in passenger vehicles.

Related standards

ISO 1402 - Hydrostatic testing
ISO 4671 - Measurement of hose dimensions
ISO 8330 - Vocabulary for hoses and assemblies
ISO 7326 - Ozone resistance testing
ISO 23529 - Conditioning of rubber test pieces
ISO/TR 11340 and other parts of the ISO 8066 series for related hose types

Keywords: ISO 8066-4:2023, R1234yf hoses, automotive air conditioning hoses, low vibration transmission, hose assemblies, refrigerant permeation, coupling integrity, hose testing standards.

ISO 8066-4:2023 PDF

Технические детали

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Похожие стандарты

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Похожие стандарты

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