AS ISO 7.

1—2008
ISO 7-1:1994
ISO 7-1:1994/Cor.1:2007
AS ISO 7.1—2008

Australian Standard®
This is a free 7 page sample. Access the full version at http://infostore.saiglobal.com.

Pipe threads where pressure-tight joints

are made on the threads

Part 1: Dimensions, tolerances and

designation
 This Australian Standard® was prepared by Committee ME-028, Screw Threads. It was
approved on behalf of the Council of Standards Australia on 30 September 2007.
This Standard was published on 13 February 2008.

The following are represented on Committee ME-028:

• Australian Chamber of Commerce and Industry

• Australian Stainless Steel Development Association
• Engineers Australia
• Federal Chamber of Automotive Industries
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• Materials Australia
• Plastics Industry Pipe Association of Australia
• University of Wollongong

This Standard was issued in draft form for comment as DR 06296.

Standards Australia wishes to acknowledge the participation of the expert individuals that
contributed to the development of this Standard through their representation on the
Committee and through the public comment period.

Keeping Standards up-to-date

Australian Standards® are living documents that reflect progress in science, technology and
systems. To maintain their currency, all Standards are periodically reviewed, and new editions
are published. Between editions, amendments may be issued.

Standards may also be withdrawn. It is important that readers assure themselves they are
using a current Standard, which should include any amendments that may have been
published since the Standard was published.

Detailed information about Australian Standards, drafts, amendments and new projects can
be found by visiting www.standards.org.au

Standards Australia welcomes suggestions for improvements, and encourages readers to

notify us immediately of any apparent inaccuracies or ambiguities. Contact us via email at
mail@standards.org.au, or write to Standards Australia, GPO Box 476, Sydney, NSW 2001.
 AS ISO 7.1—2008

Australian Standard®
This is a free 7 page sample. Access the full version at http://infostore.saiglobal.com.

Pipe threads where pressure-tight joints

are made on the threads

Part 1: Dimensions, tolerances and

designation

Originated as part of AS B53—1961.

Previous edition part of AS 1722.1—1975.
Revised in part and redesignated as AS ISO 7.1—2008.

COPYRIGHT
© Standards Australia
All rights are reserved. No part of this work may be reproduced or copied in any form or by
any means, electronic or mechanical, including photocopying, without the written
permission of the publisher.
Published by Standards Australia GPO Box 476, Sydney, NSW 2001, Australia
ISBN 0 7337 8447 X
 ii
ii

PREFACE

This Standard was prepared by the Standards Australia Committee ME-028, Screw Threads to
supersede (in part), AS 1722.1—1975, Pipe threads of Whitworth form, Part 1: Sealing pipe
threads.
The objective of this Standard is to provide manufacturers of pipe fittings and associated
equipment with the dimensions and tolerances for pipe threads where pressure-tight joints are
made on the threads.
This Standard is Part 1 of a two-part series on pipe threads where pressure-tight joints are made
on the threads. Part 2 specifies a method by which the threads can be verified by means of limit
gauges.
This Standard is identical with and has been reproduced from ISO 7-1:1994, Pipe threads where
This is a free 7 page sample. Access the full version at http://infostore.saiglobal.com.

pressure-tight joints are made on the threads, Part 1: Dimensions, tolerances and designation
and Technical Corrigendum 1 to ISO-7:1994. Technical Corrigendum 1 (2007), which corrects
Figure 5, is inserted at the end of the text.
As this Standard is reproduced from an international standard, the following applies:
(a) Its number appears on the cover and title page while the international standard number
appears only on the cover.
(b) In the source text ‘this part of ISO 7’ should read ‘this Australian Standard.’
(c) A full point substitutes for a comma when referring to a decimal marker.
The term ‘informative’ has been used in this Standard to define the application of the annex to
which it applies. An ‘informative’ annex is only for information and guidance.
References to International Standards should be replaced by references to Australian or
Australian/New Zealand Standards, as follows:
Reference to International Standard Australian Standard/New Zealand Standard
ISO AS ISO
7 Pipe threads where pressure-tight joints 7 Pipe threads where pressure-tight joints
are made on the threads are made on the threads
7-2 Part 2: Verification by means of limit 7.2 Part 2: Verification by means of limit
gauges gauges
 iii
iii

CONTENTS

Page
1 Scope .............................................................................................. 1
2 Normative reference ......................................................................... 1
3 Definitions ........................................................................................ 1
4 Symbols ........................................................................................... 2
5 Dimensions ...................................................................................... 2
6 Designation ...................................................................................... 2
7 Thread design .................................................................................. 4
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8 Gauging ........................................................................................... 5
9 Combination with fastening thread..................................................... 5
Annex A Bibliography ............................................................................. 7
ISO 7-1:1994 Technical Corrigendum 1..................................................... 8
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iv
iv

NOTES
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www.standards.org.au
AUSTRALIAN STANDARD
1

© Standards Australia
 This is a free preview. Purchase the entire publication at the link below:

AS ISO 7.1-2008, Pipe threads where

pressure-tight joints are made on the threads
Dimensions, tolerances and designation
This is a free 7 page sample. Access the full version at http://infostore.saiglobal.com.

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