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BS ISO 129-1:2018

BS ISO 129-1:2018

$215.11

Technical product documentation (TPD). Presentation of dimensions and tolerances – General principles

Published By Publication Date Number of Pages
BSI 2018 76
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PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
3.1 Elements of dimensioning
3.2 Dimensions
11 4 Presentation of dimensions
4.1 Presentation rules
4.1.1 Dimensions
4.1.2 Repeated dimensions
4.1.3 Out of scale dimensions
4.1.4 Auxiliary dimensions
4.1.5 Theoretically exact dimensions
12 4.1.6 Symmetrical dimensions
4.1.7 Characters and presentation
4.2 Positioning of dimensions
14 4.3 Units of dimensions
5 Elements of dimensioning — Usage
5.1 General
15 5.2 Property indicators
16 5.3 Dimension line
19 5.4 Terminators and origin presentation
5.4.1 Terminators
20 5.4.2 Origin presentation
21 5.5 Extension line
25 5.6 Leader line
5.7 Dimensional values
5.7.1 Presentation
5.7.2 Placement of dimensional values and symbols
27 5.7.3 Special placement of dimensional values and symbols
29 5.8 Alpha numerical characters and symbols representing dimensional values
5.8.1 Alpha numerical characters representing dimensional values
5.8.2 Symbols added to dimensional values
5.9 Tabular dimensioning
30 5.10 Complementary indication
6 Presentation of dimensional tolerances
6.1 General
6.2 Limit deviations
32 6.3 Limit dimensioning
7 Presentation of special dimensions
7.1 Arrangement of graphical and letter symbols with dimensional values
34 7.2 Diameters
7.3 Radii
7.3.1 General
35 7.3.2 Dimension location of radius centre
36 7.3.3 Semicircle features
7.3.4 Combined radii presentation
37 7.4 Spheres
7.5 Between
7.6 Arcs, chords and angles
39 7.7 Squares
40 7.8 Equally spaced and repeated features
7.8.1 Equally spaced features
42 7.8.2 Repeated features
43 7.8.3 Tabulated repeated features
44 7.9 Symmetrical workpieces and views
46 7.10 Presentation of levels
47 7.11 Dimensions of out-of-scale represented features
7.12 Auxiliary dimensions
7.13 Theoretical exact dimensions
7.14 Dimensioning of curved features
7.14.1 Curved features defined by radii
48 7.14.2 Curved features defined by coordinate dimensions
50 7.15 Dimensioning of developed views
7.16 Dimensioning of thin parts
7.16.1 Thickness indication
51 7.16.2 Surface indication
52 7.17 Dimensioning of restricted areas
7.17.1 General Rules
7.17.2 Dimensioning of restricted areas on surfaces of revolution
53 7.17.3 Dimensioning of restricted areas on other than surfaces of revolution
54 8 Arrangements of dimensions
8.1 General
8.2 Chain dimensioning
8.3 Parallel dimensioning
55 8.4 Running dimensioning
8.4.1 General
8.4.2 Unidirectional and bidirectional running dimensions
59 8.5 Coordinate dimensioning
8.5.1 Cartesian coordinate dimensioning
61 8.5.2 Polar coordinate dimensioning
8.6 Combined dimensioning
63 9 Notes and special notations
9.1 Flag notes
65 9.2 Indication of textual instructions
67 Annex A (normative) Relations and dimensions of graphical symbols
71 Annex B (informative) Chamfers, countersinks, wedges, cones and screw threads
74 Annex C (informative) Former practice
75 Bibliography

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BS ISO 129-1:2018
$215.11