BS ISO 23337:2024
Rubber, vulcanized or thermoplastic. Determination of abrasion resistance using the Improved Lambourn test machine
- Standard No.
- BS ISO 23337:2024
- Release Date
- 2024
- Published By
- British Standards Institution (BSI) GB / BSI
- Latest
- BS ISO 23337:2024
- Introduction
Analysis of the core content of the standard
ISO 23337:2024 specifies in detail the method for determining the wear resistance of rubber using the Improved Lambourn tester. The test is based on the sliding wear caused by the difference in peripheral speed between the rubber specimen and the grinding wheel under independent drive, and the volume wear is calculated through the mass loss, which can be expressed as wear volume per unit time or wear per unit running distance.
Equipment Technical Specifications
Components Technical Requirements Allowed Range Grinding Wheel Silicon Carbide Material/F80-F100 Grit Diameter 175/205/305mm Specimen Disc Shape Diameter 49/63.5mm, Thickness 5/10mm Loading Mechanism Independent Servo Control Adjustable 5-80N
Main updates of the 2024 version
Compared with the 2016 version, this revision adds a 10mm thick specimen as an optional option, which is particularly suitable for testing low hardness materials. The standard also improves the technical requirements for the abrasive supply system and explicitly requires the use of F80-F100 grit silicon carbide abrasives.
Key test parameters
Standard test conditions stipulate:
- Specimen circumferential speed: 50m/min (adjustable range 10-200m/min)
- Slip rate: 30% (adjustable 5-80%)
- Load: 40N (adjustable 5-80N)
- Abrasive feed rate: 20g/min
The test time should control the wear volume between 0.1-0.2cm³, and the specific duration should be determined through preliminary testing.
Result calculation method
Volume wear calculation formula:
V = (m/ρ)/t（mm³/min）
Wear resistance index calculation:
I = (Vref/Vtest)×100%
Wherein m is mass loss (mg), ρ is density (g/cm³), and t is test time (min).
Implementation recommendations
- The specimen needs to be left to stand for 16 hours after preparation (72 hours for arbitration testing)
- Preferably, 10mm thick specimens are used to test low hardness materials
- Regularly calibrate the equipment torque measurement system (0-5N·m range)
- It is recommended to test multiple groups of slip rates (15%-30%) for different rubber types
Technology evolution analysis
The Improved Lambourn tester solves the problem of inaccurate slip rate control of traditional equipment through a dual independent drive system. Its servo control mechanism can accurately adjust the speed difference between the grinding wheel and the specimen. The comparison data in Appendix A of the standard shows that the test accuracy of this equipment is comparable to that of a rotating cylindrical drum (DIN) tester, but it can simulate a wider range of working conditions.
BS ISO 23337:2024 Referenced Document
- ISO 18899:2013 Rubber - Guide to the calibration of test equipment
- ISO 23529 Rubber - General procedures for preparing and conditioning test pieces for physical test methods
- ISO 2781 Rubber, vulcanized or thermoplastic - Determination of density
- ISO 525 Bonded abrasive products — Shape types, designation and marking
- ISO 8486-1 Bonded abrasives - Determination and designation of grain size distribution - Part 1: Macrogrits F4 to F220
BS ISO 23337:2024 history
- 2024 BS ISO 23337:2024 Rubber, vulcanized or thermoplastic. Determination of abrasion resistance using the Improved Lambourn test machine
- 2016 BS ISO 23337:2016 Rubber, vulcanized or thermoplastic. Determination of abrasion resistance using the Improved Lambourn test machine
