43.040.40 - Braking systems

This document provides the specifications, requirements and test methods, for non-petroleum-based fluids used in road-vehicle hydraulic brake and clutch systems that are designed for use with such fluids and equipped with seals, cups or double-lipped type gland seals made of styrene-butadiene rubber (SBR) and ethylene-propylene elastomer (EPDM).

This document specifies the composition and characteristics of a reference fluid used for the compatibility testing of hydraulic braking systems and components mounted on road vehicles.

This document contains the basic alert strategy, minimum functionality requirements, basic driver interface elements, minimum requirements for diagnostics and reaction to failure, and performance test procedures for Emergency Electronic Brake Light systems (EEBL). EEBL alerts the driver against danger caused by the emergency braking of an FV on the upcoming road, so that the driver may reduce the speed. The system does not include the means to control the vehicle to meet the desired speed. The r...view more

This part of ISO 7638 gives the dimensions of, and specifies the contact allocation and tests and test requirements for, connectors for the electrical connection of the braking systems and running gear of towing and towed vehicles with 12 V nominal supply voltage. In addition, it specifies a park socket used to receive and store the plug when disconnected.

This part of ISO 7638 gives the dimensions of, and specifies the contact allocation and tests and test requirements for, connectors for the electrical connection of the braking systems and running gear of towing and towed vehicles with 24 V nominal supply voltage. In addition, it specifies a park socket used to receive and store the plug when disconnected.

ISO 27667:2011 defines the methods for testing and assessing the corrosion effects on painted backing plates used on disc brakes and painted brake shoes used on drum brakes. The methods and assessment criteria indicated in ISO 27667:2011 are part of the specification/validation phases of the product and the series production monitoring from ISO 15484. The test procedures indicated include only laboratory performance testing, whether static or cyclic. Field surveys or proving grounds test protoco...view more

ISO 6312:2010 specifies a method for measuring the strength of the bond connection between the lining material and the carrier in disc brake pad and drum brake shoe assemblies (shear strength). ISO 6312:2010 is applicable to assemblies that are integrally moulded, bonded or that use mechanical retention systems (MRS) of both types used for brakes on road vehicles. ISO 6312:2010 does not apply to riveted assemblies.

ISO 7628:2010 specifies the minimum requirements for mono wall and multilayer tubing used in air braking systems on road vehicles. The conformity of production is the responsibility of the tubing manufacturer. The marking of the tubing does not automatically imply that the tube assembly (i.e. tube with end fittings) is appropriate for its use on a vehicle.

ISO 26866:2009 applies to commercial vehicles with air brakes in the categories M2, M3, N2, N3, O3, and O4, as specified in UNECE R.E.3. ISO 26866:2009 applies during product development, product prototypes, product specification or validation, and ongoing series production, as defined in ISO 15484.

ISO 26867:2009 describes a test procedure for assessing the influence of pressure, temperature, and linear speed on the coefficient of friction of a given friction material in combination with a specific mating component (rotor or drum). ISO 26867:2009 is intended for use when comparing friction materials under the same conditions, or when controlling friction behaviour against a specification or certain performance limits. In order to take into account the different types of dynamometer cooling...view more

ISO 6310:2009 specifies a method for test and measurement of the compressive displacement of brake linings or brake pad assemblies due to loading and temperature. It also provides a test method to assess lining thermal swell and growth. ISO 6310:2009 applies to disc brake pad assemblies or coupon samples cut from the friction material.

ISO 26865:2009 applies to commercial vehicles of the categories M2, M3, N2, N3, O3 and O4, as defined in UNECE R.E.3, which are equipped with air brakes. ISO 26865:2009 applies during product development, product prototypes, product specification or validation, and ongoing series production, as defined in ISO 15484. When used in conjunction with other applicable standards or test procedures, ISO 26865:2009 is intended to provide a complete assessment of a friction material's adequacy for use in ...view more

The procedures in ISO 15484:2008 apply to disc brake pads and drum brake linings for motor vehicles and describe systematic processes for the quality assurance of such brake linings. In conjunction with tolerance ranges, the test methods and results described in ISO 15484:2008 permit a rapid assessment of disc brake pads. Uniform handling of the procedures through various phases ensures that the quality assurance requirements are clearly understood and that a global implementation is possible in...view more

ISO 21069-2:2008 describes a procedure that generates comparable measurement results in roller brake testing, such that the efficiency of the service braking system can be assessed reliably wherever the roller brake tests are performed. The following items are covered in ISO 21069-2:2008: symbols and definitions; test methods; test conditions; test equipment required; accuracy of test equipment; data recording and calculation needed; presentation of results; assessment criteria for pass/fail.

ISO 21995:2008 provides a method for the acquisition of suitable braking reference values that the manufacturer is required to provide, and for the use of these reference values in periodical technical inspection (PTI) on air brake systems.

ISO 20918:2007 describes a method to evaluate the braking threshold of heavy commercial vehicle combinations with pneumatic braking systems, by means of a roller brake tester. ISO 20918:2007 describes procedures for workshops and garages and provides a recommended pressure range of the system threshold pressure for motor vehicles and trailers, and a recommended practice for determining the system threshold pressure. ISO 20918:2007 covers neither high-pressure compatibility, including the control...view more

ISO 21944:2007 specifies an open-loop test method to determine the stopping distance of a vehicle during a straight-line braking manoeuvre, with the Anti-lock Braking System (ABS) fully engaged. It applies to passenger cars as defined in ISO 3833 and light trucks. ISO 21944:2007 specifies a reference method and is especially designed to ensure high repeatability.

ISO 7634:2007 specifies the test procedures for testing the operational performance requirements of towed vehicles of Category O (full trailers, semi-trailers, and centre-axle trailers) as defined in Annex 7 of the UN-ECE Consolidated Resolution on the Construction of Vehicles (R. E. 3). This includes vehicles fitted with compressed air braking systems (with and without an antilock braking system or an electronically controlled braking system), in accordance with the UN-ECE Regulation 13, 09 ser...view more

ISO 21069:2004 specifies a roller brake test for determining the braking efficiency of road vehicles having a maximum authorized total mass (Code ISO-M08) as defined in ISO 1176 of more than 3,5 t, being of categories M2, M3, N2, N3, O3 and O4 as defined in UNECE R.E.3 and equipped with full power air (pneumatic) braking systems. Also applicable to electronic braking systems (EBS), its purpose is to ensure comparable measurement results from different testers, leading to reliable assessment of t...view more