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BS ISO 22705-1:2021

BS ISO 22705-1:2021

$167.15

Springs. Measurement and test parameters – Cold formed cylindrical helical compression springs

Published By Publication Date Number of Pages
BSI 2021 38
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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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
9 1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
10 3.2 Symbols and abbreviated terms
11 4 Environmental conditions
5 Qualifications of the person(s) performing the work
12 6 Geometries of guiding and supporting devices
7 Measuring and testing equipment
8 Measurement and test parameter for technical cold formed cylindrical compression springs
8.1 Free length (L0)
8.1.1 General
8.1.2 Type of characteristic
8.1.3 Measuring and/or testing equipment
13 8.1.4 Conditions of measurement and testing
8.1.5 Method of measurement and testing
14 8.1.6 Test location on the product
8.2 Outside diameter (De)
8.2.1 General
8.2.2 Type of characteristic
8.2.3 Measurement and/or testing equipment
15 8.2.4 Conditions of measurement and testing
8.2.5 Method of measurement and testing
17 8.2.6 Test location on the product
18 8.3 Inside diameter (Di)
8.3.1 General
8.3.2 Type of characteristic
8.3.3 Measuring and/or testing equipment
8.3.4 Conditions of measurement and testing
8.3.5 Method of measurement and testing
20 8.3.6 Test location on the product
8.4 Total number of coils (nt), number of active coils (n) and coil direction
8.4.1 General
21 8.4.2 Type of characteristic
23 8.4.3 Measuring and/or testing equipment
8.4.4 Conditions of measurement and testing
8.4.5 Method of measurement and testing
8.4.6 Test location on the product
24 8.5 Applied end coils
8.5.1 General
8.5.2 Type of characteristic
8.5.3 Measuring and/or testing equipment
8.5.4 Conditions of measurement and testing
8.5.5 Method of measurement and testing
8.5.6 Test location on the product
25 8.6 Solid length (Lc)/solid force (Fc)
8.6.1 General
8.6.2 Type of characteristics
8.6.3 Measuring and/or testing equipment
8.6.4 Conditions of measurement and testing
8.6.5 Method of measurement and testing
26 8.6.6 Test location on the product
8.7 Spring load (F)
8.7.1 General
8.7.2 Type of characteristic
27 8.7.3 Measuring and/or testing equipment
8.7.4 Conditions of measurement and testing
8.7.5 Method of measurement and testing
8.7.6 Test location on the product
28 8.8 Spring pitch (p)/distance between the coils
8.8.1 General
8.8.2 Type of characteristic
8.8.3 Measuring and/or testing equipment
8.8.4 Conditions of measurement and testing
8.8.5 Method of measurement and testing
29 8.8.6 Test location on the product
8.9 Ground surface/angle
8.9.1 General
8.9.2 Type of characteristic
8.9.3 Measuring and/or testing equipment
30 8.9.4 Conditions of measurement and testing
8.9.5 Method of measurement and testing
8.9.6 Test location on the product
8.10 Perpendicularity (e1)
8.10.1 General
8.10.2 Type of characteristic
31 8.10.3 Measuring and/or testing equipment
8.10.4 Conditions of measurement and testing
8.10.5 Method of measurement and testing
32 8.10.6 Test location on the product
8.11 Parallelism (e2)
8.11.1 General
8.11.2 Type of characteristic
8.11.3 Measuring and/or testing equipment
33 8.11.4 Conditions of measurement and testing
8.11.5 Method of measurement and testing
8.11.6 Test location on the product
8.12 Shear-off burr
8.12.1 General
34 8.12.2 Type of characteristic
8.12.3 Measuring and/or testing equipment
8.12.4 Conditions of measurement and testing
8.12.5 Method of measurement and testing
35 8.12.6 Test location on the product
36 Annex A (informative) Calculation of spring rate (R)
37 Bibliography

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BS ISO 22705-1:2021
$167.15