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BS ISO 22574:2023

BS ISO 22574:2023

$167.15

Road vehicles. Brake linings friction materials. Visual inspection

Published By Publication Date Number of Pages
BSI 2023 44
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PDF Catalog

PDF Pages PDF Title
2 undefined
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Characteristic features for friction materials
4.1 Characteristic features for disc brake pads
4.1.1 Gapping between material and plate
10 4.1.2 Edge chipping
4.1.3 Splits
11 4.1.4 Minor splits
4.1.5 Plucked and indented spigots
4.1.6 Poor consolidated spigot holes
12 4.1.7 Excess adhesive on plate
4.1.8 Material flash on plate
13 4.1.9 Abrasive coating
4.1.10 Anti-noise coating runs
14 4.1.11 Skin crazing
4.1.12 Underlayer distribution
15 4.1.13 Marking
4.1.14 Unground material surface
4.1.15 Paint on friction material surface
16 4.1.16 Surface blisters
4.1.17 Surface indentations
17 4.1.18 Grinding marks on friction surface
4.1.19 High porosity area
18 4.1.20 Poorly consolidated friction material
4.1.21 Surface contamination with foreign matters
19 4.1.22 Surface contamination with similar friction materials
4.1.23 Friction surface structure
20 4.1.24 Plate scratched and dents
4.1.25 Blanking burrs
21 4.1.26 Deformation by blanking and edge chipping at functional area
4.1.27 Edge shipping at pin area
22 4.1.28 Pinholes (Side-cut cavity)
4.1.29 Grinding marks on the carrier
23 4.1.30 Spring holder defects
4.1.31 Surface deepening
24 4.1.32 Cold laps
4.2 Characteristic features for drum brake linings
4.2.1 Chipped edges/corners
25 4.2.2 Edge splits
26 4.2.3 Drill hole chipping at lining ends
4.2.4 Drill hole burrs inside the surface
4.2.5 Drill hole burrs outside the surface
27 4.2.6 Cracks radiating from the rivet hole
4.2.7 Paint on surface – Lining for riveting and bonding
28 4.2.8 Surface cracks
4.2.9 Marking
29 4.2.10 Moulding skin on inside radius surface – linings for bonding and riveting
4.2.11 Moulding skin on outside radius surface – linings for riveting or bonding
30 4.2.12 Surface blisters
4.2.13 Surface grind marks
31 4.2.14 Pitted surface (plucked surface)
4.2.15 Surface structure
32 4.2.16 Poor consolidated friction material
4.2.17 Inside surface indentations
33 4.2.18 Outside surface indentations
34 4.2.19 Concentration of self-contained ingredients unless typical of the formulation
35 4.2.20 High porosity area
4.2.21 Metal wire or plastic reinforcement
36 4.2.22 Foreign matter friction surface inclusion
4.3 Characteristic features for bonded lined shoes
4.3.1 Lining overhang on shoe platform edge
37 4.3.2 Faulty shoes
4.3.3 Restricted lever movement
38 4.3.4 Stencilled information
39 4.3.5 Excess adhesive exudation over shoe platform edges
4.3.6 Excess adhesive exudation from lining ends
40 4.3.7 Excess primer
4.3.8 Lining surface condition
42 4.3.9 Gaps between linings and shoe platform

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BS ISO 22574:2023
$167.15