23.040.70 - Hoses and hose assemblies
ICS 23.040.70 Details
Hoses and hose assemblies
Schlauche. Schlaucharmaturen
Tuyaux et flexibles
Gumene cevi in armature
General Information
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This document specifies three methods to determine the permeability to gas by measuring the volume of gas diffusing through a rubber or plastics hose or length of tubing used for gas applications in a specified time.
— Method 1 is for determining the permeability of the complete hose wall or length of tubing wall, excluding end fittings, to the test gas.
— Method 2 is for determining the permeability at the hose and fitting interface to the test gas.
— Method 3 is for precisely determining the permeability of the complete hose or length of tubing, including end fittings.
- Standard19 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies three methods to determine the permeability to gas by measuring the volume of gas diffusing through a rubber or plastics hose or length of tubing used for gas applications in a specified time.
— Method 1 is for determining the permeability of the complete hose wall or length of tubing wall, excluding end fittings, to the test gas.
— Method 2 is for determining the permeability at the hose and fitting interface to the test gas.
— Method 3 is for precisely determining the permeability of the complete hose or length of tubing, including end fittings.
- Standard19 pagesEnglish languagesale 10% offe-Library read for1 day
ISO 6134:2017 specifies requirements for two types of hoses and hose assemblies, low pressure with a maximum working pressure of 6 bar and high pressure with a maximum working pressure of 18 bar, made of rubber and hose fittings made of metal, designed to convey saturated steam and hot water condensate.
Each type is divided into two classes having either an oil resistant or non-oil resistant cover.
NOTE Information on the frequency of testing of hose assemblies in use and storage is given in Annex A and Annex B.
- Standard18 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies three methods to determine the permeability to gas by measuring the volume of gas diffusing through a rubber or plastics hose or length of tubing used for gas applications in a specified time. — Method 1 is for determining the permeability of the complete hose wall or length of tubing wall, excluding end fittings, to the test gas. — Method 2 is for determining the permeability at the hose and fitting interface to the test gas. — Method 3 is for precisely determining the permeability of the complete hose or length of tubing, including end fittings.
- Standard12 pagesEnglish languagesale 15% off
- Standard13 pagesFrench languagesale 15% off
This document specifies requirements for hoses and hose assemblies made of rubber and hose fittings made of metal, which are designed to convey saturated steam and hot water condensate.
This document applies to the following two types of hoses and hose assemblies:
— low pressure, with a maximum working pressure of 0,6 MPa (6 bar);
— high pressure, with a maximum working pressure of 1,8 MPa (18 bar).
Each type is divided into two classes, having either an oil resistant or non-oil resistant cover.
- Standard18 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies requirements for hoses and hose assemblies made of rubber and hose fittings made of metal, which are designed to convey saturated steam and hot water condensate. This document applies to the following two types of hoses and hose assemblies: — low pressure, with a maximum working pressure of 0,6 MPa (6 bar); — high pressure, with a maximum working pressure of 1,8 MPa (18 bar). Each type is divided into two classes, having either an oil resistant or non-oil resistant cover.
- Standard11 pagesEnglish languagesale 15% off
- Standard11 pagesFrench languagesale 15% off
ISO 2398:2016 specifies the requirements for three types, three classes and two categories of textile-reinforced rubber hose for compressed air, up to a maximum working pressure of 25 bar with an operating-temperature range of −40 °C to +70 °C, depending on the type and category.
- Standard13 pagesEnglish languagesale 10% offe-Library read for1 day
This International Standard specifies the requirements for general-purpose textile-reinforced thermoplastics
water-discharge hoses.
Three types of hose are specified according to their operating duty requirements, i.e. their ambient and water
temperature ranges:
— ambient temperatures: −10 °C to +60 °C;
— water temperature during operation: 0 °C to +60 °C.
NOTE At water temperatures above 23 °C and particularly above 40 °C, the maximum working pressure will be reduced.
These hoses are not intended to be used for conveyance of potable (drinking) water, for washing-machine
inlets, as fire-fighting hoses, for special agricultural machines or as gardening hoses for the consumer market.
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ISO 4641:2016 specifies the minimum requirements for textile-reinforced, smooth-bore rubber water-suction and discharge hoses and hose assemblies.
Three types of hoses and hose assemblies are specified according to their operating duty requirements, i.e. their ambient and water temperature ranges:
- ambient temperatures: −25 °C to +70 °C;
- water temperatures during operation: 0 °C to +70 °C.
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This document specifies the requirements for three types, three classes and two categories of textile-reinforced rubber hose for compressed air, up to a maximum working pressure of 2,5 MPa (25 bar) with an operating-temperature range of −40 °C to +70 °C, depending on the type and category.
- Standard13 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the minimum requirements for textile-reinforced, smooth-bore rubber water-suction and discharge hoses and hose assemblies.
Three types of hoses and hose assemblies are specified according to their operating duty requirements, i.e. their ambient and water temperature ranges:
— ambient temperatures: −25 °C to +70 °C;
— water temperatures during operation: 0 °C to +70 °C.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the requirements for general-purpose textile-reinforced thermoplastics water-discharge hoses.
- Standard15 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the requirements for three types, three classes and two categories of textile-reinforced rubber hose for compressed air, up to a maximum working pressure of 2,5 MPa (25 bar) with an operating-temperature range of −40 °C to +70 °C, depending on the type and category.
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This document specifies the minimum requirements for rubber hoses used for transferring ammonia, in liquid or in gaseous form, at ambient temperatures from −40 °C up to and including +55 °C at a working pressure of 2,5 MPa (25 bar). It does not include specifications for end fittings and is limited to the performance of the hoses and hose assemblies.
- Standard20 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the minimum requirements for textile-reinforced, smooth-bore rubber water-suction and discharge hoses and hose assemblies. Three types of hoses and hose assemblies are specified according to their operating duty requirements, i.e. their ambient and water temperature ranges: — ambient temperatures: −25 °C to +70 °C; — water temperatures during operation: 0 °C to +70 °C.
- Standard10 pagesEnglish languagesale 15% off
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This document specifies the requirements for general-purpose textile-reinforced thermoplastics water-discharge hoses.
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ISO 5774:2016 specifies the requirements for four types of flexible thermoplastic hose, textile reinforced, for compressed-air applications in the temperature range from −10 °C to +60 °C.
The four types are classified as light service for a maximum working pressure of 7 bar at 23 °C and 4,5 bar at 60 °C, medium service for a maximum working pressure of 10 bar at 23 °C and 6,5 bar at 60 °C, heavy service for a maximum working pressure of 16 bar at 23 °C and 11 bar at 60 °C, and heavy service for use in mining for a maximum working pressure of 25 bar at 23 °C and 13 bar at 60 °C.
- Standard21 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the requirements for four types of flexible thermoplastic hose, textile reinforced, for compressed-air applications in the temperature range from −10 °C to +60 °C.
- Standard21 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the requirements for four types of flexible thermoplastic hose, textile reinforced, for compressed-air applications in the temperature range from −10 °C to +60 °C.
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This document specifies the general and dimensional requirements for the design and performance of hose fittings with 24° cone connector ends with O-rings according to ISO 8434‑1. These hose fittings are made of carbon steel and are intended for use with hoses with nominal inside diameters from 5 mm through 38 mm (inclusive).
NOTE For hose fittings used in hydraulic and pneumatic braking systems on road vehicles, see ISO 4038, ISO 4039‑1 and ISO 4039‑2.
These hose fittings are for use in hydraulic fluid power systems with hoses that meet the requirements of respective hose standards and in general applications with suitable hoses.
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This document specifies the requirements and test methods for verification for hose assemblies with vapour recovery for delivery systems on petrol filling stations.
The hose assemblies with vapour recovery for delivery systems on petrol filling stations need to be capable of withstanding anticipated mechanical, thermal and chemical stressing and be resistant to the combustible liquids used in these applications as well as their vapour and vapour air mixtures. It is imperative that the assemblies be constructed in such a way that actions during normal operation cannot give rise to dangerous electrostatic charges nor that there will be any reduction in the performance of the vapour recovery.
The assemblies are intended for use at ambient temperatures between –30 °C and +55 °C for normal temperature class and –40 °C and +55 °C for low temperature class at a working pressure ≤ 16 bar .
Hoses can be constructed from rubber or thermoplastic elastomer (TPE) and this document specifies the requirements for three types of hoses in two grades and two classes of hose assemblies for measured fuel dispensing systems, including oxygenated fuels (≤15 % oxygenated compounds) with internal vapour recovery tubing or hose.
NOTE This document is not applicable to multi chamber fuel dispensing hoses.
As part of the certification of a new dispenser, testing of fuel samples in accordance with EN 228 are carried out at least eight weeks after the first use of the equipment to avoid unrepresentative sulphur content results.
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This document defines terms used in the hose industry.
Recommended terminology for electrical conductivity and resistance of rubber and plastics hoses and hose assemblies can be found in ISO 8031:2020, Annex A.
- Standard33 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies requirements for ten classes, four grades and seven types of wire- or textile-reinforced hydraulic hoses and hose assemblies of nominal sizes ranging from 5 to 102. Each class has a single maximum working pressure for all sizes.
They are suitable for use with:
— oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743‑4 at temperatures ranging from −40 °C to +100 °C for types AS, AC, BS and BC hoses and from −40 °C to +120 °C for types CS, CC and DC hoses.
— water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743‑4 at temperatures ranging from −40 °C to +70 °C.
— water at temperatures ranging from 0 °C to +70 °C.
This document does not include requirements for the connection ends. It is limited to the performance of hoses and hose assemblies. The hose assembly maximum working pressure is governed by the lowest maximum working pressure of the components.
NOTE It is the responsibility of the user, in consultation with the hose manufacturer, to establish the compatibility of the hose with the fluid to be used.
- Standard23 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the general and dimensional requirements for the design and performance of hose fittings with 24° cone connector ends with O-rings according to ISO 8434‑1. These hose fittings are made of carbon steel and are intended for use with hoses with nominal inside diameters from 5 mm through 38 mm (inclusive). NOTE For hose fittings used in hydraulic and pneumatic braking systems on road vehicles, see ISO 4038, ISO 4039‑1 and ISO 4039‑2. These hose fittings are for use in hydraulic fluid power systems with hoses that meet the requirements of respective hose standards and in general applications with suitable hoses.
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- Standard13 pagesEnglish languagesale 15% off
- Standard13 pagesFrench languagesale 15% off
This document specifies the requirements and test methods for verification for hose assemblies with vapour recovery for delivery systems on petrol filling stations.
Hoses can be constructed from rubber or thermoplastic elastomer (TPE) and this document specifies the requirements for three types of hoses in two grades and two classes of hose assemblies for measured fuel dispensing systems, including oxygenated fuels (≤15 % oxygenated compounds) with internal vapour recovery tubing or hose made out of rubber or thermoplastic elastomer (TPE).
The assemblies are intended for use at ambient temperatures between -30 °C and +55 °C for normal temperature class and -40 °C and +55 °C for low temperature class at a working pressure ≤ 16 bar.
This document is not applicable to multi chamber fuel dispensing hoses.
NOTE As part of the certification of a new dispenser, testing of fuel samples in accordance with EN 228 is carried out at least eight weeks after the first use of the equipment to avoid unrepresentative sulphur content results.
1 bar = 0,1 MPa.
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This document specifies methods of measuring the inside diameter, outside diameter (including diameter over reinforcement of hydraulic hoses), wall thickness, concentricity and lining and cover thickness of hoses, methods of measurement and identification of the lengths of hoses and hose assemblies, and a method of verifying the through-bore of hydraulic hose assemblies.
- Standard19 pagesEnglish languagesale 10% offe-Library read for1 day
This European Standard specifies requirements for the hose tail of hose fittings according to EN 14420 1 for use with clamp units according to EN 14420 3. Furthermore, it specifies materials for hose fittings with clamp units according to EN 14420-4 to EN 14420-8.
Maximum working pressure is 25 bar; maximum working temperature is 65 °C.
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This document specifies requirements for hose tails according to EN 14420-2, with flanges of mating dimensions PN 10/PN 16/PN 25/PN 40 (according to nominal size and pressure stage) according to EN 1092 1, on hose fittings with clamp units according to EN 14420-3.
Maximum working pressure is 25 bar ); maximum working temperature is 65 °C.
Additionally, flanges are also usable according to EN 14422.
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This document specifies the design, materials, dimensions and marking requirements for cam locking couplings that serve as the link between hoses and connections to transport liquids, solids and gases, except liquid gas and steam. The couplings are capable of operating within the pressure range −0,8 bar1 to 16 bar and in a working temperature range of −20 °C up to +65 °C. For all sizes of aluminium-cast-material couplings and for all couplings size DN 100 the pressure range is from −0,8 bar to 10 bar.
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This document specifies requirements for the hose tail of hose fittings according to EN 14420-1 for use with clamp units according to EN 14420-3. Furthermore, it specifies materials for hose fittings with clamp units according to EN 14420-4 to EN 14420-8.
Maximum working pressure is 25 bar ; maximum working temperature is 65 °C.
- Standard10 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the design, materials, dimensions and marking requirements for cam locking couplings that serve as the link between hoses and connections to transport liquids, solids and gases, except liquid gas and steam.
For all sizes of aluminium cast material couplings and for all couplings of size DN 100, the pressure range is from -0,8 bar to 10 bar in the working temperature range from -20 °C to +65 °C. All other couplings according to this document are capable of operating within the pressure range from 0,8 bar to 16 bar in the working temperature range from -20 °C to +65 °C.
- Standard30 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies requirements for hose tails according to EN 14420-2, with flanges of mating dimensions PN 10/PN 16/PN 25/PN 40 (according to nominal size and pressure stage) according to EN 1092-1, on hose fittings with clamp units according to EN 14420-3.
Maximum working pressure is 25 bar; maximum working temperature is 65 °C.
Additionally, flanges are also usable according to EN 14422.
- Standard14 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies a method for the determination of the volumetric expansion of rubber or plastics hoses under hydrostatic pressure.
This document does not specify the dimensions of the test piece and the test pressure(s) as each of which is specified in the appropriate specification.
- Standard12 pagesEnglish languagesale 10% offe-Library read for1 day
This document defines terms used in the hose industry.
Recommended terminology for electrical conductivity and resistance of rubber and plastics hoses and
hose assemblies can be found in ISO 8031:2020, Annex A.
- Standard33 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies requirements for ten classes, four grades and seven types of wire- or textilereinforced hydraulic hoses and hose assemblies of nominal sizes ranging from 5 to 102. Each class has a
single maximum working pressure for all sizes.
They are suitable for use with:
— oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging
from −40 °C to +100 °C for types AS, AC, BS and BC hoses and from −40 °C to +120 °C for types CS, CC
and DC hoses.
— water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging
from −40 °C to +70 °C.
— water at temperatures ranging from 0 °C to +70 °C.
This document does not include requirements for the connection ends. It is limited to the performance
of hoses and hose assemblies. The hose assembly maximum working pressure is governed by the lowest
maximum working pressure of the components.
NOTE It is the responsibility of the user, in consultation with the hose manufacturer, to establish the
compatibility of the hose with the fluid to be used.
- Standard23 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies methods of measuring the inside diameter, outside diameter (including
diameter over reinforcement of hydraulic hoses), wall thickness, concentricity and lining and cover
thickness of hoses, methods of measurement and identification of the lengths of hoses and hose
assemblies, and a method of verifying the through-bore of hydraulic hose assemblies
- Standard19 pagesEnglish languagesale 10% offe-Library read for1 day
This document defines terms used in the hose industry. Recommended terminology for electrical conductivity and resistance of rubber and plastics hoses and hose assemblies can be found in ISO 8031:2020, Annex A.
- Standard24 pagesEnglish languagesale 15% off
- Standard27 pagesFrench languagesale 15% off
This document specifies requirements for ten classes, four grades and seven types of wire- or textile-reinforced hydraulic hoses and hose assemblies of nominal sizes ranging from 5 to 102. Each class has a single maximum working pressure for all sizes. They are suitable for use with: — oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743‑4 at temperatures ranging from −40 °C to +100 °C for types AS, AC, BS and BC hoses and from −40 °C to +120 °C for types CS, CC and DC hoses. — water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743‑4 at temperatures ranging from −40 °C to +70 °C. — water at temperatures ranging from 0 °C to +70 °C. This document does not include requirements for the connection ends. It is limited to the performance of hoses and hose assemblies. The hose assembly maximum working pressure is governed by the lowest maximum working pressure of the components. NOTE It is the responsibility of the user, in consultation with the hose manufacturer, to establish the compatibility of the hose with the fluid to be used.
- Standard16 pagesEnglish languagesale 15% off
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This document specifies methods of measuring the inside diameter, outside diameter (including diameter over reinforcement of hydraulic hoses), wall thickness, concentricity and lining and cover thickness of hoses, methods of measurement and identification of the lengths of hoses and hose assemblies, and a method of verifying the through-bore of hydraulic hose assemblies.
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This document specifies the general and dimensional requirements for the design and performance
of flange hose fittings, made of carbon steel, for nominal hose inside diameters of 12,5 mm to 76 mm
inclusive, in accordance with ISO 4397, for use with ports and clamps in accordance with ISO 6162-1
and ISO 6162-2.
Note 1 Materials other than carbon steel can be supplied as agreed between the manufacturer and user.
Note 2 For hose fittings used in hydraulic and pneumatic braking systems on road vehicles (as defined in the
scope of ISO/TC 22/SC 2, Road vehicles), see ISO 4038, ISO 4039-1 and ISO 4039-2.
These hose fittings (see Figure 1 for a typical example) are for use in hydraulic fluid power systems
with a hose that meets the requirements of the respective hose standards and in general applications
with suitable hoses.
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This document specifies two methods for measuring the stiffness and one method for the determination of the flexibility of rubber and plastics hoses and tubing when they are bent to a specific radius at sub-ambient temperatures.
Method A is suitable for non-collapsible rubber and plastics hoses and tubing with a bore of up to and including 25 mm. This method provides a means of measuring the stiffness of the hose or tubing when the temperature is reduced from a standard laboratory temperature.
Method B is suitable for rubber and plastics hoses and tubing with a bore of up to 100 mm and provides a means of assessing the flexibility of the hose or tubing when bent around a mandrel at a specified sub-ambient temperature. It can also be used as a routine quality control test.
Method C is suitable for rubber and plastics hoses and tubing with a bore of 100 mm and greater. This method provides a means of measuring the stiffness of the hose and tubing at sub-ambient temperatures. This method is only suitable for hoses and tubing which are non-collapsible.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies a method for the determination of the volumetric expansion of rubber or
plastics hoses under hydrostatic pressure.
This document does not specify the dimensions of the test piece and the test pressure(s) as each of
which is specified in the appropriate specification.
- Standard12 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies methods for the hydrostatic testing of rubber and plastics hoses and hose assemblies, including methods for the determination of dimensional stability.
- Standard16 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies three methods for determining the resistance to vacuum of hoses and hose assemblies manufactured from plastic or rubber. Applicable dimensions of hoses for each method are as follows:
— method A for hoses of nominal size up to and including 80;
— method B for hoses of nominal size greater than 80;
— method C for hoses of all dimensions.
If not otherwise specified in the product standard, method C can be used as an alternative to methods A and B.
Methods A and B can also be used to check the adhesion of the lining to the reinforcement (delamination) in a length of hard-wall hose or hose assembly.
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This document specifies a method for the determination of the volumetric expansion of rubber or plastics hoses under hydrostatic pressure. This document does not specify the dimensions of the test piece and the test pressure(s) as each of which is specified in the appropriate specification.
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This document specifies the general and dimensional requirements for the design and performance of flange hose fittings, made of carbon steel, for nominal hose inside diameters of 12,5 mm to 76 mm inclusive, in accordance with ISO 4397, for use with ports and clamps in accordance with ISO 6162‑1 and ISO 6162‑2. Note 1 Materials other than carbon steel can be supplied as agreed between the manufacturer and user. Note 2 For hose fittings used in hydraulic and pneumatic braking systems on road vehicles (as defined in the scope of ISO/TC 22/SC 2, Road vehicles), see ISO 4038, ISO 4039‑1 and ISO 4039‑2. These hose fittings are for use in hydraulic fluid power systems with a hose that meets the requirements of the respective hose standards and in general applications with suitable hoses.
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This document specifies two methods for measuring the stiffness and one method for the determination
of the flexibility of rubber and plastics hoses and tubing when they are bent to a specific radius at subambient
temperatures.
Method A is suitable for non-collapsible rubber and plastics hoses and tubing with a bore of up to and
including 25 mm. This method provides a means of measuring the stiffness of the hose or tubing when
the temperature is reduced from a standard laboratory temperature.
Method B is suitable for rubber and plastics hoses and tubing with a bore of up to 100 mm and provides
a means of assessing the flexibility of the hose or tubing when bent around a mandrel at a specified subambient
temperature. It can also be used as a routine quality control test.
Method C is suitable for rubber and plastics hoses and tubing with a bore of 100 mm and greater.
This method provides a means of measuring the stiffness of the hose and tubing at sub-ambient
temperatures. This method is only suitable for hoses and tubing which are non-collapsible.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies requirements for two types of hose assemblies (Types D and SD) and four grades based on electrical properties with hoses made of rubber or thermoplastics and hose fittings made of metal designed to convey liquid or gaseous chemical substances, hereinafter termed the "chemicals conveyed".
The hose assemblies are intended for use with chemicals conveyed in the temperature range of -20 °C to +65 °C at a working pressure ≤ 10 bar1.
NOTE 1 This document sets out requirements for these hose assemblies to ensure that users are not exposed to danger from fire or explosion and that the environment is protected against contamination or damage.
NOTE 2 Other temperatures and working pressures than those given above can be agreed with the manufacturer, provided that the marking on the hose (see 14.1) states this and the requirements of Table 5 and all the other requirements are met.
NOTE 3 Other diameters than those given in this document can be agreed with the manufacturer.
NOTE 4 This document also provides guidance on the storage of hose assemblies (Clause 15).
NOTE 5 The attention of users is drawn to Annex F concerning the selection of lining material related to the chemical(s) to be conveyed by the hoses and/or hose assemblies.
This document does not apply to hose assemblies for:
- aircraft refuelling (EN ISO 1825);
- fuel dispensing (EN 1360);
- oil burners (EN ISO 6806);
- refrigerant circuits;
- fuel truck delivery (EN 1761);
- liquid petroleum gases (LPG) (EN 1762, EN 16436-2);
- fire-fighting (EN ISO 14557);
- oil suction and discharge (EN 1765);
- rotary drilling (EN ISO 6807);
- fuel dispensing with vapour recovery systems (EN 13483);
- anhydrous ammonia (EN ISO 5771).
This document does not apply to multilayer hose assemblies (EN 13765 and EN 13766).
- Standard47 pagesEnglish languagesale 10% offe-Library read for1 day
This document establishes the requirements and test methods for rubber and plastics suction hoses
for fire-fighting purposes. These hoses can also be used manually to supply unpressurized water to the
pump or for water discharge.
NOTE All pressures are expressed in megapascals and in bar (1 MPa = 10 bar).
Additional requirements are specified for hose assemblies, that is, hoses with couplings already fitted,
where this is carried out by the hose manufacturer (see Clause 8).
Type A (rubber) hoses are intended for use at a minimum temperature of −20 °C and Type B
(thermoplastics) hoses are intended for use at a minimum temperature of −10 °C.
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This document specifies two methods for measuring the stiffness and one method for the determination of the flexibility of rubber and plastics hoses and tubing when they are bent to a specific radius at sub-ambient temperatures. Method A is suitable for non-collapsible rubber and plastics hoses and tubing with a bore of up to and including 25 mm. This method provides a means of measuring the stiffness of the hose or tubing when the temperature is reduced from a standard laboratory temperature. Method B is suitable for rubber and plastics hoses and tubing with a bore of up to 100 mm and provides a means of assessing the flexibility of the hose or tubing when bent around a mandrel at a specified sub-ambient temperature. It can also be used as a routine quality control test. Method C is suitable for rubber and plastics hoses and tubing with a bore of 100 mm and greater. This method provides a means of measuring the stiffness of the hose and tubing at sub-ambient temperatures. This method is only suitable for hoses and tubing which are non-collapsible.
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