BS-AU-50-3.2-1977 ISO-4570-I-1977.pdf
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1、BRITISH STANDARD AUTOMOBILE SERIES BS AU 50-3.2:1977 ISO 4570-I: 1977 Specification for Tyres and wheels Part 3: Valves Section 2: Tyre valve threads 5V1, 5V2, 6V1 and 8V1 UDC 629.113.012.551 396.2:621.882.082 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:5
2、2:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-3.2:1977 This British Standard, having been prepared under the direction of the Automobile Standards Committee, was published under the authority of the Executive Board on 31 October 1977 BSI 02-2000 The following BSI references relate to the
3、work on this standard: Committee reference AUE/4 Draft for comment 76/71547 DC ISBN 0 580 09866 4 Foreword This Section of this Part of BS AU 50, prepared under the direction of the Automobile Standards Committee, is identical with ISO 4570-I:1977 “Tyre valve threads Part 1: Threads 5V1, 5V2, 6V1 an
4、d 8V1”. Section 1 of this Part deals with valve dimensions; subsequent sections will cover other threads. Other Parts of the standard are: Part 1: Tyres; Part 2: Wheels and rims. Terminology and conventions. The text of the International Standard has been accepted as suitable for publication, withou
5、t deviation, as a British Standard. Certain terminology and conventions are used, however, that are not identical with those used in British Standards. Attention is therefore drawn to the following. Where the words “International Standard”, relating to this publication, appear, they should be interp
6、reted as “British Standard”. The comma has been used throughout as a decimal marker. In British Standards it is current practice to use a full point (a full stop on the baseline) as the decimal marker. Cross reference. For the following reference to another International Standard that is given in th
7、e text, there is an equivalent British Standard; this is given below: A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immu
8、nity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 and 2 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on t
9、he inside front cover. Reference to International StandardEquivalent British Standard ISO/R 1502:1970 ISO general purpose metric screw threads Gauging BS 919 Screw gauge limits and tolerances Part 3:1968 Gauges for ISO metric screw threads Amendments issued since publication Amd. No.Date of issueCom
10、ments Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:52:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-3.2:1977 BSI 01-2000i Contents Page ForewordInside front cover 1Scope and field of application1 2Reference1 3Designation1 4Profile1 5Thread gauging
11、1 Table 1 Designation1 Table 2 Limit dimensions2 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:52:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:52:18 GMT+00:00
12、 2006, Uncontrolled Copy, (c) BSI BS AU 50-3.2:1977 BSI 01-20001 1 Scope and field of application This International Standard specifies limit dimensions and tolerances for tyre valve threads 5V1, 5V2, 6V1 and 8V1. 2 Reference ISO/R 1502, ISO general purpose metric screw threads Gauging. 3 Designatio
13、n The designation of tyre valve threads shall be as given in Table 1. 4 Profile See the figure and Table 2. Table 1 Designation 5 Thread gauging The principles of thread gauging shall be in accordance1) with ISO/R 1502. Nominal dimensions mm Designation 5,2 0,705 5,2 1,058 6 0,8 7,7 0,794 5V1 5V2 6V
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