SAE-complaint testing
BOSMAL a certified supplier of further laboratory services for the Volkswagen Group
Accredited testing procedures
SAE-J2521 – „AK-Noise” – Disc and Drum Brake Dynamometer Squeal Noise Test Procedure
The purpose of the test is to measure the squeals emitted by the brake. The procedure imitates the braking conditions for which the brake being tested has a high tendency to emit noise. The test includes forward and reverse braking modules, braking with deceleration and braking with simultaneous driving at various speed, temperature and pressure conditions.
SAE-J2521 „AK-Noise” B section „cold”
Allowing to test brakes in temperatures down to -10°C
SAE-J2522 – „AK-Master” – Dynamometer Global Brake Effectiveness
This test procedure evaluates the effective indicators of friction material, taking into account the different pressure, temperature and speed conditions for motor vehicles equipped with hydraulic brakes. The main purpose of SAE J2522 is to compare the friction material under possibly similar conditions. To take into account the different characteristics of the brake cooling systems of different dynamometers, the fade section is temperature controlled.
SAE-J2707 – Wear Test Procedure on Inertia Dynamometer for Brake Friction Materials
Dynamometer test procedure used to measure the wear of friction linings of motor vehicles’ brakes.
SAE-J2784 – FMVSS Inertia Dynamometer Test Procedure for Vehicles Below 4540 kg GVWR
The inertia test procedure determines the performance of the complete brake under the conditions corresponding to the FMVSS 105 and 135 test procedures.
SAE-J2928 – Brake Rotor Thermal Cracking Procedure for Vehicles Below 4540 kg GVWR
Laboratory method and criteria to determine the moment of initiation of cracks in the brake disk and their propagation during high energy braking events.
ISO 11157 - Road vehicles - Brake lining assemblies - Inertia dynamometer test method.
Dynamometer test method to homologate alternative types of brake linings (including pads) mounted on original equipment, in accordance with UN-ECE Regulation No. 13-09, Annex 15.
ISO 15484 - Road vehicles - Brake lining friction materials - Product definition and quality assurance
The procedures apply to disc brake pads and drum brake linings for motor vehicles and describe systematic processes for the quality assurance of such brake linings.
ISO 26867 - Road vehicles - Brake lining friction materials - Friction behaviour assessment for automotive brake systems
This International Standard is designed to evaluate the friction behaviour under a wide array of driving speeds, brake temperatures, brake pressure and deceleration levels.
The Standard 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).
And many other ISO test specifications.
The results of all those tests can be easily compared with results obtained on other friction material: OE or AM.
ISO/PAS 22574
ISO 7629
ISO/PAS 12158
JASO C406 – Passenger car – Braking device – Dynamometer test procedures
The test procedure for the Dynamometer performance of normally operated service brake device in passenger cars.
JASO C419 – Passenger cars – Service brake – Structural integrity dynamometer test procedure
This standard sets forth strength methods on service brakes that normally operate in passenger car through the use of an Inertia Dynamometer
JASO C427 – Automobile parts – Brake lining and disc brake pad – Wear test procedure on Inertia Dynamometer
This standard specifies the Dynamometer test procedure for the measurement of wear of brake linings and pads to be used in the service brakes of automobiles.
JASO C436 - Parking brake device dynamometer test procedures
JASO C442 – Parking Brake Structural Integrity Dynamometer Test Procedure
This standard establishes a structural integrity Dynamometer test procedure for parking brakes of automobile.
JASO C443 – Road vehicles – Service brake – Dynamometer simulated mountain fade test procedure
This standard specifies the simulated mountain fade Dynamometer test procedure for normally operating service brakes of automobiles.
JASO C456 – Test Method for Wear Warning Devices
This standard specifies the test method for wear warning devices of brake linings and pads used for the service brakes of passenger cars.
Regulation No. 13
Uniform provisions concerning the approval of vehicles of categories M, N and O with regard to braking.
Regulation No. 13-H
Uniform provisions concerning the approval of passenger cars with regard to braking
Regulation No. 78
Uniform provisions concerning the approval of vehicles of categories L1, L2, L3, L4 and L5 with regard to braking
Regulation No. 90
Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers
