BS EN 16452:2015+A1:2019

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviations
5 Overall requirements
6 Acceptance procedure
7 Category A requirements
8 Category B requirements
9 Category C requirements
10 Environmental issues
11 Marking
Annex A (normative) - Summary of Dynamometer test pro
        grams and acceptance criteria
Annex B (normative) - General requirements for conducting
        dynamometer test programmers
Annex C (normative) - Composite brake blocks (K)
        (2Bg - 2Bgu) - Demonstration of friction properties
        for S and SS (S/SS) - braked freight wagons
        (v[max] = 120 km/h)
Annex D (normative) - Composite brake blocks
        (LL) - Demonstration of friction properties
        for S and SS (S/SS) - braked freight wagons
        (v[max] = 120 km/h)
Annex E (normative) - Composite brake blocks (K)
        (1Bg)- Demonstration of friction properties
        for S and SS (S/SS) - braked freight wagons
        (v[max] = 120 km/h)
Annex F (normative) - Composite brake blocks
        (L) - Demonstration of friction properties for
        extra tread brake of coach
Annex G (normative) - Composite brake blocks
        (K) - Demonstration of friction properties
        for locomotives
Annex H (normative) - Composite brake blocks
        (K) - Demonstration of friction properties for
        EMU - DMU
Annex I (normative) - Composite brake blocks
        (K) - Demonstration of friction
        properties for High speed train (motor bogie)
Annex J (informative) - Dynamometer test
        program - Generic test program
Annex K (normative) - Dynamometer Test program
        to detect the formation of metal pick-up at
        the brake block
Annex L (normative) - Dynamometer test program to
        demonstrate the extreme winter braking
Annex M (normative) - Test run to demonstrate
        the extreme winter braking properties
        brake blocks K - LL for freight wagons
Annex N (normative) - Dynamometer Test program
        to simulate 'Locked brake'
Annex O (normative) - Dynamometer test program
        to demonstrate the compatibility with track circuits
Annex P (informative) - Vehicle test to demonstrate
        the compatibility with track circuits
Annex Q (informative) - Dynamometer test
        program - Determination of static
        friction coefficient
Annex R (informative) - Dynamometer test
        program - Simulation of service conditions
        for freight wagons
Annex S (normative) - Interchangeability, rejection lugs
        and critical dimensions
Annex T (normative) - Brake block shear and flexural
        strength tests
Annex U (normative) - Limitation of permissible mechanical
        damage of brake block
Annex V (normative) - In service assessment of brake block
Annex W (informative) - Complementary definitions
        and abbreviations
Annex X (informative) - Brake block characterization test
Annex ZA (informative) - Relationship between this
         European Standard and the Essential Requirements
         of EU Directive 2008/57/EC
Bibliography

Describes the requirements for the design, dimensions, performance, and testing of a brake block (otherwise known as brake shoe insert) that acts on the wheel tread as part of a tread brake system.

This European Standard gives the requirements for the design, dimensions, performance, and testing of a brake block (otherwise known as brake shoe insert) that acts on the wheel tread as part of a tread brake system. This European Standard does not cover cast iron brake block requirements.

This European Standard is applicable to brake blocks of either “K??, “L??, or “LL?? friction level designed to be fitted to tread braked rail vehicles.

This European Standard contains the requirements for interfacing the brake block with the rail vehicle, the testing procedures in order to confirm that it satisfies the basic safety and technical interchangeability requirements, the material control procedures to ensure product quality, reliability and conformity and considers health and environmental needs.