CEN/TC 218/WG 4 - Basic specifications and test methods for rubber and plastics hoses, hose assemblies and tubing

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.

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.

ISO 10619-1:2017 specifies three methods for measuring the flexibility of rubber and plastics hoses and tubing (methods A1, B and C1), where the deformation of the hose or tubing is measured, and two methods for measuring the stiffness (methods A2 and C2) by measuring the force required to bend rubber or plastics hoses or tubing to a specific radius at ambient temperature.
Methods A1 and A2 are suitable for rubber and plastics hoses and tubing with inside diameter of up to and including 80 mm.
Method A1 allows the measurement of the flexibility of the hose or tubing by measuring the reduction in outside diameter when the hose is compressed between two plates.
Method A2 provides a means of measuring the force required to reach a specific bend radius when the hose or tubing is compressed, as between two plates. The test can be carried out at a specified internal pressure.
Method B is suitable for rubber and plastics hoses and tubing with inside diameter of up to and including 100 mm, and provides a means of assessing the behaviour of the hose and tubing when bent around a mandrel. The final mandrel diameter used can be taken as the minimum bend radius of the hose or tubing. As this value is determined by the reduction of the outside diameter, it can be used as a measure of the flexibility of the hose or tubing. The hose or tubing being tested can be unpressurized, pressurized or under vacuum and, if required, with the curvature or against the curvature of the hose or tubing, if such curvature is present.
Methods C1 and C2 are suitable for rubber and plastics hoses and tubing with inside diameter of 100 mm and greater.
Method C1 provides a means of determining the flexibility of the hose and tubing at the minimum bend radius.
Method C2 provides a method of measuring the stiffness of the hose and tubing at the minimum bend radius.

ISO 10960:2017 specifies a method of assessing the resistance of hoses to the deleterious effects of atmospheric ozone under dynamic conditions. It is applicable to hoses with bore diameters up to and including 25 mm.

ISO 8033:2016 specifies methods for the determination of the adhesion between lining and reinforcement, between cover and reinforcement, between reinforcement layers, between cover and outer lamination (thin layer of material outside the cover for protection) and between lining and inner lamination (thin layer of material inside the lining to reduce permeation of fluid into the lining). It covers all bore sizes and the following types of hose construction:
-      woven textile fabric;
-      braided textile fabric;
-      knitted textile fabric;
-      circular-woven textile fabric;
-      textile spiral;
-      textile cord;
-      wire braid;
-      wire spiral;
-      hoses containing a supporting helix.
Adequate adhesion between the various components of a hose is essential if it is to perform satisfactorily in service.

ISO 7751:2016 specifies ratios of proof pressure and minimum burst pressure to maximum working pressure for various categories of hose service.

ISO 8308:2015 specifies two methods for the determination of transmission of liquids through hose and tubing walls. Both methods are applicable to rubber and plastics hose and tubing, and comprise:
-      method A, for all hose and tubing sizes and constructions: a practical comparative test, simulating working conditions;
-      method B, for hose and tubing up to 16 mm inside diameter.

ISO 4023:2009 specifies test methods in which a rubber hose test piece or hose assembly is exposed to saturated steam, thus simulating service conditions.
Four methods are specified, namely:
method A: vertical rack method;
method B: horizontal rack method;
method C: flexing test, vertical arrangement;
method D: flexing test, horizontal arrangement.

Specifies a method for determining the abrasion of a hose lining when a certain amount of specified grit is passed through the hose. The method is applicable to rubber and plastics hoses with an internal bore of 20 to 50 mm used for grit blasting, shot blasting and similar operation. The method may be used for comparison of the abrasion resistance of different types of hose.

ISO 4080:2009 specifies three methods for the determination of the volume of gas diffusing through a rubber or plastics hose or length of tubing in a specified time.
Method 1: For determining the permeability of the complete hose or length of tubing, excluding end-fittings, to the test gas. The permeability is calculated with respect to the length of the hose or tubing.
Method 2: For determining the permeability at the hose/fitting interface. This method is used when determining the permeability characteristics of hoses with an unpricked cover, when the gas usually issues from the textile reinforcement at the cut ends. The permeability is calculated with respect to the length of the hose.
Method 3: For determining precisely the permeability of a hose or hose assembly to the test gas. The permeability is calculated with respect to the surface area of the hose lining.
The methods are applicable only to gases which are insoluble in water.

ISO 10619-2:2017 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.

Migrated from Progress Sheet (TC Comment) (2000-07-10): TC Res.62e)/1996: ISO 8032 , when published, be circulated as a UAP ++ ISO 8032:1987 is in course of preparation (Meeting 1996-05-15). ++ CEN/TC 218 N182: FDIS expected 97-01 but not issued (TA/970424)

ISO 10619-1:2011 specifies three methods for measuring the flexibility of rubber and plastics hoses and tubing (methods A1, B and C1), where the deformation of the hose or tubing is measured, and two methods for measuring the stiffness (methods A2 and C2) by measuring the force to bend the hose or tubing when rubber or plastics hoses or tubing are bent to a specific radius at ambient temperature.
Methods A1 and A2 are suitable for rubber and plastics hoses and tubing with inside diameter of up to and including 80 mm.
Method A1 allows the measurement of the flexibility of the hose or tubing by measuring the reduction in outside diameter when the hose is compressed between two plates.
Method A2 provides a means of measuring the force required to reach a specific bend radius, when the hose or tubing is compressed, as between two plates. The test can be carried out at a specified internal pressure.
Method B is suitable for rubber and plastics hoses and tubing with inside diameter of up to and including 100 mm, and provides a means of assessing the behaviour of the hose and tubing when bent around a mandrel. The final mandrel diameter used can be taken as the minimum bend radius of the hose or tubing. As this value is determined by the reduction of the outside diameter which can be used as a measure of the flexibility of the hose or tubing. The hose or tubing being tested can be unpressurized, pressurized or under vacuum and, if required, with the curvature or against the curvature of the hose or tubing, if such curvature is present.
Methods C1 and C2 are suitable for rubber and plastics hoses and tubing with inside diameter of 100 mm and greater.
Method C1 provides a means of determining the flexibility of the hose and tubing at the minimum bend radius.
Method C2 provides a method of measuring the stiffness of the hose and tubing at the minimum bend radius.

ISO 10619-2:2011 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.

Specifies a method of assessing the resistance of hoses to the deleterious effects of atmospheric ozone under dynamic conditions. Applicable to hoses with bore diameters up to and including 25 mm.

Adequate adhesion between the various components of a hose is essential if it is to perform satisfactorily in service. ISO 8033:2006 specifies methods for the determination of the adhesion between lining and reinforcement, between cover and reinforcement, between reinforcement layers, between cover and outer lamination (thin layer of material outside the cover for protection) and between lining and inner lamination (thin layer of material inside the lining to reduce permeation of fluid into the lining). It covers all bore sizes and the following types of hose construction:
woven textile fabric;
braided textile fabric;
knitted textile fabric;
circular-woven textile fabric;
textile spiral;
textile cord;
wire braid;
wire spiral;
hoses containing a supporting helix.

Specifies only ratios. The methods to perform the proof and burst tests are specified in ISO 1402. This second edition cancels and replaces the first edition (1983).

ISO 8308:2006 specifies two methods for the determination of transmission of liquids through hose and tubing walls. Both methods are applicable to rubber and plastics hose and tubing, and comprise:
method A, for all hose sizes and constructions: a practical comparative test, simulating working conditions;
method B, for hose and tubing up to 16 mm internal diameter.

Specifies two methods for assessing whether a rubber or plastics hose retains adequate flexibility at sub-ambient temperatures. Replaces the second edition.

Specifies a method for exposing rubber and plastics hoses for the evaluation of the changes in colour and appearance. The exposition is carried out with a xenon arc lamp that yields a spectrum closely similar to that of daylight.

Provides a means of assessing the deterious effects of ultra-violet radiation under static conditions. specifies 3 methods: one for bore sizes up to 25 mm, tested on the hose itself; one for bore sizes greater than 25 mm, tested on a piece of the hose wall, and one for bore sizes greater than 25 mm, tested on a piece of the hose coating. The last method should only be used, if it is not possible to carry out the test in accordance with method two. 3 figures show the various test piece holders.

Deals with the definition and the characteristics of control systems. It is not limited to the actual controller tasks but also includes other tasks which may be assigned to a control system, such as sequence control tasks, safety and provision for the actuating energy. The following systems are included, speed, power, opening, water level and flow control for all turbine types; electronic, electrical and fluid power devices; safety devices as well as start-up and shutdown devices.

Migrated from Progress Sheet (TC Comment) (2000-07-10): CEN/TC 218 cann't confirm target dates because item is dependant on ++ ISO work ++ To be published in 1994. ++ ISO document.  Estimated target date for stage 21 is 1994-06.

This guide has for purpose to provide guidance for the early consideration of testability aspects in design and development, and to assist in determining effective test procedures as an integral part of operation and maintenance.  This second edition constitutes a technical revision. It expands and provides more detail on the techniques and systems broadly outlined in the first edition.

This technical report provides an overview of protection availability provided by residual current-operated protective devices (RCDs) complying with IEC standards for household and similar uses. It highlights the main parameters influencing protection reliability and provides information on how to install and operate RCDs in relationship to their environmental conditions after installation.

Migrated from Progress Sheet (TC Comment) (2000-07-10): Stage 21 sent for PQ on 94-02-24.

gives the guideline for methods for the protection of the user's privacy in consumer equipment and systems, both when the  equipment or systems are in use and out of use.