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BS EN ISO 21920-1:2022

BS EN ISO 21920-1:2022

$198.66

Geometrical product specifications (GPS). Surface texture: Profile – Indication of surface texture

Published By Publication Date Number of Pages
BSI 2022 58
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PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Tolerance acceptance rules
4.1 General
4.2 Maximum tolerance acceptance rule
10 4.3 16 % tolerance acceptance rule
4.4 Median tolerance acceptance rule
11 5 Specification elements for indication of profile surface texture specifications
5.1 General
5.2 Mandatory indication to be explicitly specified
5.3 Optional indications to specify non-default or further requirements
12 6 Indication of profile surface texture
6.1 General
6.2 Graphical symbols
13 6.3 Minimal indication
6.3.1 General
6.3.2 Minimal indication for parameters with defined defaults
6.3.3 Minimal indication for parameters without defined defaults
14 6.4 Complete indication
6.4.1 General
15 6.4.2 Complete indication for evaluation length R-parameters
16 6.4.3 Complete indication for section length R-parameters
17 6.4.4 Complete indication for evaluation length P-parameters and W-parameters
18 6.4.5 Complete indication for section length P-parameters and W-parameters
7 Rules for indication of profile surface texture specifications
7.1 General
19 7.2 Graphical symbol for the indication of profile surface texture specifications
7.3 Profile surface texture parameter
7.4 Tolerance limit value of the profile surface texture parameter
7.5 Tolerance types
7.6 Tolerance acceptance rule
7.7 Profile S-filter type
7.8 Profile S-filter nesting index
20 7.9 Profile L-filter type (for R-parameter) or profile S-filter type (for W-parameter)
7.10 Profile L-filter nesting index (for R-parameter) or profile S-filter nesting index (for W-parameter)
7.11 Evaluation length
7.12 Section length
7.13 Number of sections
7.14 Profile F-operator association method and element
7.15 Profile F-operator nesting index
21 7.16 Method of profile extraction
7.17 Other requirements, OR(n)
7.18 Manufacturing process
7.19 Surface lay and direction of lay
7.20 Profile direction
7.21 Setting class, Scn
22 8 Position on technical product documentation
8.1 General
8.2 Position and orientation of the graphical symbol
25 9 Simplified and additional indications
9.1 Simplified indications
9.1.1 General
9.1.2 General tolerances
26 9.1.3 Indication by the graphical symbol combined with a letter
27 9.2 Restrictive specifications
28 9.3 Indication of identical specifications for a number of feature elements
9.4 Indication of surface lay and direction of lay
9.4.1 General
29 9.4.2 Indication of surface lay without a reference
30 9.4.3 Indication of surface lay and direction of lay relative to a workpiece feature
9.5 Indication of the profile direction
9.5.1 General
31 9.5.2 Indication of the profile direction relative to the predominant direction of the surface lay
9.5.3 Indication of the profile direction relative to a workpiece feature
32 9.6 Indication of bilateral surface profile tolerances
9.7 Indication of different requirements for several additional processes on one surface feature
34 Annex A (normative) Proportions and dimensions of graphical symbols
36 Annex B (normative) Filter symbols for profile surface texture
37 Annex C (normative) Symbols for association methods and association elements
38 Annex D (informative) Indications for unambiguous surface profile specification
50 Annex E (normative) Inspection procedure for the 16 % tolerance acceptance rule
51 Annex F (informative) Criteria for the use of the maximum tolerance acceptance rule as the default
52 Annex G (informative) New issues and changes to previous documents
55 Annex H (informative) Overview of profile and areal standards in the GPS matrix model
56 Annex I (informative) Relation to the GPS matrix model
57 Bibliography

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BS EN ISO 21920-1:2022
$198.66