GOST R ISO 13920-2017

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  ГОСТ Р ИСО 13920-2017

GOST R ISO 13920−2017 welding. General tolerances for welded construction. Linear and angular dimensions. The shape and location

GOST R ISO 13920−2017

NATIONAL STANDARD OF THE RUSSIAN FEDERATION

Welding

GENERAL TOLERANCES FOR WELDED CONSTRUCTIONS

Linear and angular dimensions. The shape and location

Welding. General tolerances for welded constructions. Dimensions for lengths and angles. Shape and position

OKS 25.160.10, 17.040.10

Date of introduction 2017−10−01

Preface

1 PREPARED by limited liability company «national ekspertno-diagnostic company» (NEDK, OOO) on the basis of their own translations into Russian language the English language version of the standard specified in paragraph 4

2 SUBMITTED by the Technical Committee for standardization TC 364 «welding and allied processes"

3 APPROVED AND put INTO EFFECT by the Federal Agency for technical regulation and Metrology dated 31 March 2017 N 237-St

4 this standard is identical to international standard ISO 13920:1996* «welding. General tolerances for welded construction. Linear and angular dimensions. Form and location» (ISO 13920:1996 «Welding — General tolerances for welded constructions — Dimensions for lengths and angles — Shape and position», IDT).

An international standard developed by the Technical Committee on standardization ISO/TC 44 «welding and allied processes», Subcommittee SC 10.

In applying this standard it is recommended to use instead of the referenced international standards corresponding national standards, the details of which are given in Appendix YES

5 INTRODUCED FOR THE FIRST TIME

Rules for the application of this standard is established in article 26 of the Federal law from June 29, 2015 N 162-FZ «On standardization in the Russian Federation». Information about the changes to this standard is published in the annual (as of January 1 of the current year) reference index «National standards» and the official text changes and amendments — in monthly information index «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in the upcoming issue of the monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet (www.gost.ru)

1 Scope

This standard specifies General tolerances for linear and angular dimensions and for shape and position of welded structures, belonging to four classes of tolerances used in the work of ordinary precision. The main criterion for the selection of the accuracy class should serve the requirements of the appliance.

In all cases, use the tolerances specified on the drawing. Instead of specifying individual tolerances may be applied to classes of tolerances of the present standard.

General tolerances for linear and angular dimensions, form and location set forth in this standard apply to welded constructions, nodes, etc.

For structures of increased complexity can be applied.

Technical requirements given in this standard, based on ISO 8015, according to which tolerances on dimensions and geometric parameters are applied independently from each other.

Production documentation, which defines tolerances for linear and angular dimensions, form and location should be considered as not complete if there is no reference to General tolerances or are these links not complete. These requirements do not apply to intermediate sizes.

2 Normative references

For the application of this standard requires the following referenced documents are*. For dated references, only use the specified edition of the referenced document, for undated references, the latest edition of the referenced document (including all changes):
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* The table of conformity of national standards international see the link. — Note the manufacturer’s database.


ISO/DIS 463Geometrical Product Specifications (GPS) Dimensional measuring instruments; Dial gauges — Design and metrological requirements (Geometric characteristics of the products. Measuring instruments with circular scale. Design and metrological requirements)

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Currently ISO 463:2006 «Geometric specifications. Instruments for measuring dimensions. Design and metrological characteristics of mechanical dial gauges».


prEN ISO 1101Technical drawings — Geometrical tolerancing. Tolerances of form, orientation, location and run-out — Generalities, definitions, symbols, indications on drawings (technical Drawings. The dimensional tolerances. Tolerances of form, direction, location and run-out. General provisions, definitions, symbols, indications on drawings)

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Currently ISO 1101:2012 the «Geometric specifications. The establishment of geometric tolerances. Tolerances of form, orientation, location and run-out».


ISO 3599Vernier callipers reading to 0,1 and 0,05 mm (Vernier Calipers with divisions of 0.1 and 0.05 mm)

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Currently, there are ISO 13385−1:2011 «Geometric specifications. Instruments for measuring dimensions. Part 1. Calipers. Structural and metrological characteristics» and ISO 13385−2:2011 «Geometric specifications. Instruments for measuring dimensions. Part 2. The depth gauges. Structural and metrological characteristics».


ISO 6906Vernier callipers reading to 0,02 mm (Calipers and a Vernier division is 0.02 mm)

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Currently, there are ISO 13385−1:2011 «Geometric specifications. Instruments for measuring dimensions. Part 1. Calipers. Structural and metrological characteristics» and ISO 13385−2:2011 «Geometric specifications. Instruments for measuring dimensions. Part 2. The depth gauges. Structural and metrological characteristics».


ISO 8015 Technical drawings — Fundamental tolerancing principle (technical Drawings. The basic rules of tolerances)

3 Terms and definitions

This standard applies the terminology in accordance with prEN ISO 1101.

4 General tolerances

4.1 Tolerances linear dimensions

Cm. table 1.

Table 1 — Tolerances for linear dimensions