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BS ISO 4000-1:2021

BS ISO 4000-1:2021

$198.66

Passenger car tyres and rims – Tyres (metric series)

Published By Publication Date Number of Pages
BSI 2021 60
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This document specifies the designation, dimensions, and load ratings of metric-series tyres primarily intended for passenger cars.

PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
4 Designation
4.1 Size and construction
4.1.1 Characteristics
8 4.1.2 Nominal section width
4.1.3 Nominal aspect ratio
4.1.4 Tyre construction code
4.1.5 Nominal rim diameter code
9 4.2 Service description
4.2.1 General
4.2.2 Load index
4.2.3 Speed symbol
10 4.2.4 Speed category
4.3 Other service characteristics
12 5 Marking
6 Tyre dimensions
6.1 Rounding values
13 6.2 Calculation of design tyre dimensions
6.2.1 Theoretical rim width, Rth
6.2.2 Measuring rim width code, Rmc
6.2.3 Design tyre section width, S
14 6.2.4 Design tyre section height, H
6.2.5 Design tyre overall diameter, D0
6.2.6 Guidelines
6.3 Calculation of maximum overall (grown) tyre dimensions in service tyre mounted on their measuring rims
6.3.1 General
6.3.2 Maximum overall (grown) width in service, Wmax
15 6.3.3 Maximum overall (grown) diameter in service, D0,max
6.4 Calculation of minimum tyre dimensions for radial tyres mounted on their measuring rims
6.4.1 Minimum tyre section width, Smin
6.4.2 Minimum tyre overall diameter, D0,min
6.5 Range of approved rims
16 7 Tyre dimension measurement procedure
8 Inflation pressures
17 9 Load carrying-capacities
10 Choice of tyre sizes
18 11 Camber angle
20 Annex A (informative) Guideline values for metric-series tyres
28 Annex B (normative) Load indices for passenger car tyres
48 Annex C (normative) Minimum inflation pressure for intermediate load
56 Annex D (informative) Other existing size markings
58 Bibliography

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BS ISO 4000-1:2021
$198.66