ISO 22705-1:2021

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

General Information

• Status: Published
• Publication Date: 25-Mar-2021
• ICS: 21.160 - Springs
• Technical Committee: ISO/TC 227 - Springs
• Drafting Committee: ISO/TC 227 - Springs
• Current Stage: 6060 - International Standard published
• Start Date: 26-Mar-2021
• Due Date: 27-Nov-2020
• Completion Date: 26-Mar-2021

Standards Content (Sample)

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
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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 .
...