ISO 22705-1:2021
(Main)Springs — Measurement and test parameters — Part 1: Cold formed cylindrical helical compression springs
Springs — Measurement and test parameters — Part 1: Cold formed cylindrical helical compression springs
This document specifies the measurement and test methods for the general characteristics of cold formed helical compression springs made from round wire, excluding dynamic testing.
Ressorts — Mesures et paramètres et d'essai — Partie 1: Ressorts hélicoïdaux de compression cylindriques formés à froid
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INTERNATIONAL ISO
STANDARD 22705-1
First edition
2021-03
Springs — Measurement and test
parameters —
Part 1:
Cold formed cylindrical helical
compression springs
Ressort - Mesures et paramètres d'essai —
Partie 1: Ressort hélicoïdal de compression cylindrique formé à froid
Reference number
©
ISO 2021
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Symbols and abbreviated terms. 2
4 Environmental conditions . 3
5 Qualifications of the person(s) performing the work . 3
6 Geometries of guiding and supporting devices . 4
7 Measuring and testing equipment . 4
8 Measurement and test parameter for technical cold formed cylindrical
compression springs . 4
8.1 Free length (L ). 4
8.1.1 General. 4
8.1.2 Type of characteristic . 4
8.1.3 Measuring and/or testing equipment . 4
8.1.4 Conditions of measurement and testing . 5
8.1.5 Method of measurement and testing . 5
8.1.6 Test location on the product . 6
8.2 Outside diameter (D ) . 6
e
8.2.1 General. 6
8.2.2 Type of characteristic . 6
8.2.3 Measurement and/or testing equipment . 7
8.2.4 Conditions of measurement and testing . 7
8.2.5 Method of measurement and testing . 7
8.2.6 Test location on the product . 9
8.3 Inside diameter (D ) .10
i
8.3.1 General.10
8.3.2 Type of characteristic .10
8.3.3 Measuring and/or testing equipment .10
8.3.4 Conditions of measurement and testing .10
8.3.5 Method of measurement and testing .10
8.3.6 Test location on the product .12
8.4 Total number of coils (n ), number of active coils (n) and coil direction .13
t
8.4.1 General.13
8.4.2 Type of characteristic .13
8.4.3 Measuring and/or testing equipment .15
8.4.4 Conditions of measurement and testing .15
8.4.5 Method of measurement and testing .15
8.4.6 Test location on the product .16
8.5 Applied end coils .16
8.5.1 General.16
8.5.2 Type of characteristic .16
8.5.3 Measuring and/or testing equipment .17
8.5.4 Conditions of measurement and testing .17
8.5.5 Method of measurement and testing .17
8.5.6 Test location on the product .17
8.6 Solid length (L )/solid force (F ) .17
c c
8.6.1 General.17
8.6.2 Type of characteristics .17
8.6.3 Measuring and/or testing equipment .18
8.6.4 Conditions of measurement and testing .18
8.6.5 Method of measurement and testing .18
8.6.6 Test location on the product .19
8.7 Spring load (F) .19
8.7.1 General.19
8.7.2 Type of characteristic .19
8.7.3 Measuring and/or testing equipment .19
8.7.4 Conditions of measurement and testing .19
8.7.5 Method of measurement and testing .20
8.7.6 Test location on the product .20
8.8 Spring pitch (p)/distance between the coils .20
8.8.1 General.20
8.8.2 Type of characteristic .20
8.8.3 Measuring and/or testing equipment .21
8.8.4 Conditions of measurement and testing .21
8.8.5 Method of measurement and testing .21
8.8.6 Test location on the product .21
8.9 Ground surface/angle .21
8.9.1 General.21
8.9.2 Type of characteristic .22
8.9.3 Measuring and/or testing equipment .22
8.9.4 Conditions of measurement and testing .23
8.9.5 Method of measurement and testing .23
8.9.6 Test location on the product .23
8.10 Perpendicularity (e ) .23
8.10.1 General.23
8.10.2 Type of characteristic .23
8.10.3 Measuring and/or testing equipment .24
8.10.4 Conditions of measurement and testing .24
8.10.5 Method of measurement and testing .
...
INTERNATIONAL ISO
STANDARD 22705-1
First edition
2021-03
Springs — Measurement and test
parameters —
Part 1:
Cold formed cylindrical helical
compression springs
Ressort - Mesures et paramètres d'essai —
Partie 1: Ressort hélicoïdal de compression cylindrique formé à froid
Reference number
©
ISO 2021
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Symbols and abbreviated terms. 2
4 Environmental conditions . 3
5 Qualifications of the person(s) performing the work . 3
6 Geometries of guiding and supporting devices . 4
7 Measuring and testing equipment . 4
8 Measurement and test parameter for technical cold formed cylindrical
compression springs . 4
8.1 Free length (L ). 4
8.1.1 General. 4
8.1.2 Type of characteristic . 4
8.1.3 Measuring and/or testing equipment . 4
8.1.4 Conditions of measurement and testing . 5
8.1.5 Method of measurement and testing . 5
8.1.6 Test location on the product . 6
8.2 Outside diameter (D ) . 6
e
8.2.1 General. 6
8.2.2 Type of characteristic . 6
8.2.3 Measurement and/or testing equipment . 7
8.2.4 Conditions of measurement and testing . 7
8.2.5 Method of measurement and testing . 7
8.2.6 Test location on the product . 9
8.3 Inside diameter (D ) .10
i
8.3.1 General.10
8.3.2 Type of characteristic .10
8.3.3 Measuring and/or testing equipment .10
8.3.4 Conditions of measurement and testing .10
8.3.5 Method of measurement and testing .10
8.3.6 Test location on the product .12
8.4 Total number of coils (n ), number of active coils (n) and coil direction .13
t
8.4.1 General.13
8.4.2 Type of characteristic .13
8.4.3 Measuring and/or testing equipment .15
8.4.4 Conditions of measurement and testing .15
8.4.5 Method of measurement and testing .15
8.4.6 Test location on the product .16
8.5 Applied end coils .16
8.5.1 General.16
8.5.2 Type of characteristic .16
8.5.3 Measuring and/or testing equipment .17
8.5.4 Conditions of measurement and testing .17
8.5.5 Method of measurement and testing .17
8.5.6 Test location on the product .17
8.6 Solid length (L )/solid force (F ) .17
c c
8.6.1 General.17
8.6.2 Type of characteristics .17
8.6.3 Measuring and/or testing equipment .18
8.6.4 Conditions of measurement and testing .18
8.6.5 Method of measurement and testing .18
8.6.6 Test location on the product .19
8.7 Spring load (F) .19
8.7.1 General.19
8.7.2 Type of characteristic .19
8.7.3 Measuring and/or testing equipment .19
8.7.4 Conditions of measurement and testing .19
8.7.5 Method of measurement and testing .20
8.7.6 Test location on the product .20
8.8 Spring pitch (p)/distance between the coils .20
8.8.1 General.20
8.8.2 Type of characteristic .20
8.8.3 Measuring and/or testing equipment .21
8.8.4 Conditions of measurement and testing .21
8.8.5 Method of measurement and testing .21
8.8.6 Test location on the product .21
8.9 Ground surface/angle .21
8.9.1 General.21
8.9.2 Type of characteristic .22
8.9.3 Measuring and/or testing equipment .22
8.9.4 Conditions of measurement and testing .23
8.9.5 Method of measurement and testing .23
8.9.6 Test location on the product .23
8.10 Perpendicularity (e ) .23
8.10.1 General.23
8.10.2 Type of characteristic .23
8.10.3 Measuring and/or testing equipment .24
8.10.4 Conditions of measurement and testing .24
8.10.5 Method of measurement and testing .
...
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