June 2006DEUTSCHE NORM

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DDIN 878

Geometrical product specifications (GPS) –Mechanical dial gauges –

Limits for metrological characteristics

Geometrische Produktspezifikation (GPS) –Mechanische Messuhren –Grenzwerte für messtechnische Merkmale

©

Together with

supersedesDIN 878:1983-10

www.beuth.de

DIN EN ISO 463:2006-06,

Document comprises 3 pages

06.07

Translation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.

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DIN 878:2006-06 (E)

2

Foreword

This standard has been prepared by Technical Committee NA 152-03-07-02 Eindimensionale Längenprüf-technik of the Normenausschuss Technische Grundlagen (Fundamentals in Technology Standards Commit-tee).

DIN 878:1983-10 has been fully revised to reflect the publication of DIN EN ISO 463:2006, the latter being a framework standard that defines the most important design and metrological characteristics of mechanical dial gauges but does not specify numerical values for the metrological characteristics; Germany had been against the decision to delete these values.

This new edition of DIN 878 has been published to ensure German industry continues to have access to the limit values of metrological characteristics.

Amendments

This standard differs from DIN 878:1983-10 as follows.

a) Only numerical values for limits of metrological characteristics are specified.

b) The title has been changed to reflect the content.

c) The standard has been editorially revised.

Previous editions

DIN 878-1: 1941-02, 1943-08, 1959-06 DIN 878-2: 1955-12 DIN 878: 1970-06, 1979-01, 1983-10

1 Scope

This standard applies to mechanical gauges as in DIN EN ISO 463 having scale intervals of 0,01 mm and a measuring range of 0,4 mm; 0,8 mm; 3 mm; 5 mm and 10 mm. It specifies the numerical values for limits of metrological characteristics.

This standard does not cover waterproof or watertight mechanical gauges, which are subject to special re-quirements.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated refer-ences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

DIN EN ISO 1, Geometrical product specifications (GPS) — Standard reference temperature for geometrical product specifications and verification

DIN EN ISO 463, Geometrical Product Specifications (GPS) — Dimensional measuring equipment — Design and metrological characteristics of mechanical dial gauges

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DIN 878:2006-06 (E)

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DIN EN ISO 14253-1, Geometrical product specifications (GPS) — Inspection by measurement of workpieces and measuring equipment — Part 1: Decision rules for proving conformance or non-conformance with specifi-cations

DIN EN ISO 14978, Geometrical product specifications (GPS) — General concepts and requirements for GPS measuring equipment

Internationales Wörterbuch der Metrologie (VIM) (International Vocabulary of Basic and General Terms in Metrology)1)

3 Concepts

For the purposes of this standard, the concepts defined in DIN EN ISO 463, DIN EN ISO 14253-1, DIN EN ISO 14978 and the “International vocabulary of basic and general terms in metrology” (VIM) apply.

4 Requirements

4.1 Reference temperature

20 °C as in DIN EN ISO 1.

4.2 Limit values for metrological characteristics

The limit values for metrological characteristics are to be taken from Table 1. They apply to all gauge orienta-tions.

Table 1 — Limit values for metrological characteristics

Limit values for

errors of indication over a range of Measuring range

hysteresis of error of indication

repeatability of error of indication

any 1/10 revolution

any 1/2 revolution

one revolution

the measuring

range

0,4 mm 3 µm 3 µm 5 µma — — 7 µm

0,8 mm 3 µm 3 µm 5 µma — — 7 µm

3 mm 3 µm 3 µm 5 µm 8 µm 9 µm 10 µm

5 mm 3 µm 3 µm 5 µm 9 µm 10 µm 12 µm

10 mm 3 µm 3 µm 5 µm 9 µm 10 µm 15 µm a Refers to 1/10 of the measuring range.

1) Obtainable from Beuth Verlag GmbH, AuslandsNormen-Service (ANS), 10772 Berlin, Order No. 13086, ISBN 3-410-13086-1.

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