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AS 1973-1993

[Pending Revision]

Pneumatic tyres — Passenger car, light truck, and truck/bus — Retreading and repair processes

Sets out a Code of Practice for the retreading of pneumatic diagonal and radial ply tyres including requirements for initial inspection, processing, marking and final inspection. Also sets out requirements for in-service repairs to tyres and repairs made in conjunction with the retreading process.
Published: 15/11/1993
Pages: 29
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
1 SCOPE AND GENERAL
1.1 SCOPE
1.2 APPLICATION
1.3 REFERENCED DOCUMENTS
1.4 DEFINITIONS
2 INITIAL INSPECTION OF TYRES
2.1 GENERAL
2.2 INSPECTION OF TYRES BEFORE RETREADING OR REPAIR
2.3 SPEED LIMITED TYRES
3 RETREADING
3.1 GENERAL
3.1.1 Use of materials
3.1.2 Buffing
3.1.3 Inspection after buffing
3.1.4 Buffing damage
3.1.4.1 Passenger car or light truck tyres
3.1.4.2 Truck/bus tyres
3.1.5 Rebelting of radial ply truck/bus tyres
3.1.6 Repairs
3.1.7 Cementing
3.1.8 Building
3.1.9 Curing
3.1.10 Radial ply tread patterns on diagonal ply passenger car tyres
3.1.11 Venting
3.1.12 Inspection after curing
3.1.13 Final inspection
3.2 DIMENSIONAL AND PHYSICAL REQUIREMENTS
3.2.1 Rubber under the tread pattern
3.2.2 Tread wear indicators
3.2.3 Balance
3.3 ADHESION REQUIREMENT
3.4 SPEED CATEGORIES FOR RETREADED TYRES
4 REPAIR TECHNIQUES
4.1 ENVIRONMENTAL CONDITIONS
4.2 REPAIR MATERIALS
4.3 REPAIR PRINCIPLES
4.3.1 General principles
4.3.2 Preparation of damage for repairing
4.3.3 Minor repair principles
4.3.4 Major repair principles
4.4 MEASUREMENT OF DAMAGE
4.4.1 General
4.4.2 Diagonal ply tyres
4.4.3 Radial ply tyres—Crown and shoulder damage
4.4.4 Radial ply tyres—Sidewall damage
4.5 CURING
4.5.1 General
4.5.2 Hot-curing
4.5.3 Cold curing (chemical)
4.6 INSPECTION AFTER CURING
4.6.1 Visual inspection of repair
4.6.2 Inspection of repair marking
5 REPAIR LIMITS FOR PASSENGER CAR TYRES
5.1 GENERAL
5.2 PASSENGER CAR TYRE REPAIR CLASSIFICATION
5.2.1 Minor repairs
5.2.2 Major repairs
5.3 IRREPARABLE DAMAGE
5.4 REPAIR LIMITS
6 REPAIR LIMITS FOR LIGHT TRUCK TYRES
6.1 GENERAL
6.2 LIGHT TRUCK TYRE REPAIR CLASSIFICATIONS
6.2.1 Minor repairs
6.2.2 Major repairs
6.3 IRREPARABLE DAMAGE
6.4 REPAIR LIMITS
7 REPAIR LIMITS FOR RADIAL PLY TRUCK/BUS TYRES
7.1 GENERAL
7.2 RADIAL PLY TRUCK/BUS TYRE REPAIR CLASSIFICATIONS
7.2.1 Minor repairs
7.2.2 Major repairs
7.3 IRREPARABLE DAMAGE
7.4 REPAIR LIMITS
8 REPAIR LIMITS FOR DIAGONAL PLY TRUCK / BUS TYRES
8.1 GENERAL
8.2 DIAGONAL PLY TRUCK/BUS TYRE REPAIR CLASSIFICATIONS
8.2.1 Minor repairs
8.2.2 Major repairs
8.3 IRREPARABLE DAMAGE
8.4 REPAIR LIMITS
9 MARKING
9.1 MARKING OF RETREADED TYRES
9.1.1 Marking on one side
9.1.2 Marking on both sides
9.1.3 Method and position of marking
9.1.4 Sidewall marking of asymmetric tyres
9.1.5 Removal of marking
9.1.6 Identification of the number of retreads
9.2 MARKING OF REPAIRED TYRES
APPENDIX A
A1 SCOPE
A2 PRINCIPLE
A3 APPARATUS
A4 TEST SPECIMENS
A5 PRECONDITIONING
A6 TEST CONDITIONS
A7 PROCEDURE
A8 REPORT
Cited references in this standard
[Withdrawn]
Rubber and plastics — Analysis of multi-peak traces obtained in determinations of tear strength and adhesion strength
[Superseded]
Data elements and interchange formats — Information interchange — Representation of dates and times
[Superseded]
Interior lighting, Part 2.0: Recommendations for specific tasks and interiors
Content history
[Available Superseded]
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