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BS ISO 8062-4:2023 – TC

$258.95

Tracked Changes. Geometrical product specifications (GPS). Dimensional and geometrical tolerances for moulded parts – Rules and general tolerances for castings using profile tolerancing in a general datum system

Published By Publication Date Number of Pages
BSI 2023 132
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PDF Catalog

PDF Pages PDF Title
1 compares BS ISO 8062-4:2023
2 TRACKED CHANGES
Text example 1 — indicates added text (in green)
76 National foreword
81 Foreword
82 Introduction
83 1 Scope
2 Normative references
84 3 Terms and definitions
87 4 Graphical symbols
88 5 Product definition type indicator
5.1 Single and combined product definitions
5.2 Final moulded part product definitions
89 5.3 Intermediate machined moulded part product definitions
5.4 Final machined moulded part product definition
5.5 Identifier for machining by the supplier
90 6 Product definition indications
6.1 Surface texture symbols
6.2 Part condition identifiers
6.2.1 General
91 6.2.2 Surface texture
92 6.2.3 Linear sizes
6.2.4 Linear dimensions and individually indicated dimensional tolerances
6.2.5 Theoretically exact dimensions (TEDs)
6.2.6 Geometrical tolerances and datums
94 6.3 Required machining allowance (RMA)
6.3.1 General
6.3.2 General RMA
6.3.3 Individual RMA
6.4 Draft angles
96 7 Indication of general tolerances
7.1 General tolerances according to this document
7.2 General surface profile tolerance
97 8 Types of specifications
8.1 General
8.2 Specification of final moulded part condition
8.2.1 Overview of specification of final moulded part condition
8.2.2 Specification of final moulded part condition by the casting calculation method
98 8.2.3 Specification of final moulded part condition by the multiple tolerancing method
8.3 Specification of intermediate machined moulded part conditions
99 8.4 Specification of final machined moulded part condition
9 Tolerancing
9.1 General
9.2 Tolerancing of final moulded parts
9.2.1 Recommendations
100 9.2.2 Drafts
9.3 Tolerancing of intermediate machined moulded parts
9.4 Tolerancing of final machined moulded parts
9.4.1 General
9.4.2 Drafts
9.4.3 Multiple tolerancing method
101 10 Rules
10.1 Rule A: Application of general tolerances for castings
10.2 Rule B: General surface profile tolerances
102 10.3 Rule C: General datum system RST
10.4 Rule D: Tolerances overruling the general surface profile tolerances
103 10.5 Rule E: Additional tolerances
10.6 Rule F: Machined condition
10.7 Rule G: Required machining allowances (RMA)
10.8 Rule H: Draft angle (taper)
10.9 Rule I: Wall thickness
104 11 General tolerances
105 12 Required machining allowances (RMAs)
106 13 Draft angles
108 14 General product definition indication
110 Annex A (normative) Proportions and dimensions of graphical symbols
112 Annex B (informative) Proposed process for general tolerancing castings
113 Annex C (informative) Examples for the multiple tolerancing method
115 Annex D (informative) Drawing examples
121 Annex E (informative) Selection of general tolerances
122 Annex F (informative) Selection of required machining allowances (RMA)
123 Annex G (informative) Example of using general tolerances
126 Annex H (normative) Calculation of the nominal dimension of the moulded condition — casting calculation method
129 Annex I (informative) Relationship to the GPS matrix model
131 Bibliography
BS ISO 8062-4:2023 - TC
$258.95