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AS
AS 1984-1977

AS 1984-1977

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Vernier callipers (metric series)

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Withdrawn date

19-12-2019

Language(s)

English

Published date

01-09-1977

Publisher

Standards Australia

Preview

1 - AS 1984-1977 VERNIER CALLIPERS (METRIC SERIES)
4 - PREFACE
5 - CONTENTS
6 - SECTION 1. SCOPE AND GENERAL REQUIREMENTS
6 - 1.1 SCOPE.
6 - 1.2 NOMENCLATURE.
6 - 1.3 DEFINITIONS.
6 - 1.4 STANDARD SIZES.
9 - 1.5 MATERIALS AND PROPERTIES.
9 - 1.5.1 Materials.
9 - 1.5.2 Stabilizing.
9 - 1.5.3 Hardness.
10 - 1.6 FINISH.
10 - 1.7 REFERENCE TEMPERATURE.
10 - 1.8 MARKING.
10 - 1.9 PROTECTION.
10 - 1.9.1 Protective Case.
10 - 1.9.2 Packaging.
11 - SECTION 2. DESIGN AND DIMENSIONS
11 - 2.1 GENERAL DESIGN REQUIREMENTS.
11 - 2.1.1 General.
11 - 2.1.2 Vernier Callipers Reading to 0,02 mm.
11 - 2.1.3 Vernier Callipers Reading to 0,1 and 0,05 mm.
11 - 2.2. GENERAL DIMENSIONS.
11 - 2.3 MEASURING FACES.
11 - 2.3.1 Faces for External Measurement.
12 - 2.3.2 Faces for Internal Measurement.
13 - 2.4 SCALES.
13 - 2.4.1 General.
13 - 2.4.2 Parallax Error.
16 - 2.4.3. Scale Marks
18 - SECTION 3. ACCURACY
18 - 3.1 SCOPE OF SECTION.
18 - 3.2 BEAM.
18 - 3.2.1 Straightness of the Principal Guiding Face.
18 - 3.2.2 Flatness of Beam.
18 - 3.3 FACES FOR EXTERNAL MEASUREMENT.
18 - 3.3.1 Flatness.
18 - 3.3.2 Parallelism.
18 - 3.3.3 Squareness of the Fixed Jaw to the Beam (Vernier Callipers Reading to 0.02 mm only)
18 - 3.3.4 Equality of Length of Fixed and Sliding Jaws (Vernier Callipers Reading to 0.02 mm only)
19 - 3.4 FACES FOR INTERNAL MEASUREMENT.
19 - 3.4.1 Cylindrical Faces for Internal Measurement.
19 - 3.4.2 Knife-edge Type of Faces for Internal Measurement
19 - 3.5 INDICATION ERROR (OVERALL ACCURACY).
21 - APPENDIX A - METHODS OF TEST
21 - A1 GENERAL.
21 - A2 FLATNESS OF FACES FOR EXTERNAL MEASUREMENT.
21 - A3 PARALLELISM OF FACES FOR EXTERNAL MEASUREMENT.
21 - A4 MAINTENANCE OF PARALLELISM OF FACES FOR EXTERNAL MEASUREMENT DURING CLAMPING OF THE SLIDING JAW
21 - A5 COMBINED WIDTH OF FACES FOR INTERNAL MEASUREMENT.
21 - A6 PARALLELISM OF FACES FOR INTERNAL MEASUREMENT.
22 - A7 THICKNESS OF GRADUATION LINES.
22 - A8 INDICATION ERROR.

Specifies materials, properties, basic design details, accuracy and finish of vernier callipers reading to 0.1 and 0.05 mm in sizes up to 1000 mm and to 0.02 mm in sizes up to 300 mm. An appendix gives notes on the testing of the more important features of the instruments. It does not apply to dial callipers but these callipers may comply except for read-out and indicating mechanism.

This standard specifies requirements for vernier callipers reading to 0,1 (1/10), 0,05 (1/20), and 0,02 (1/50) mm, and having measuring ranges as given in Table 1.Requirements for materials and properties, basic design, accuracy and finish are also specified.NOTE: Notes on methods for testing the more important features of vernier callipers are given in Appendix A. These notes are for guidance only and do not purport to be either recommended or mandatory methods of test.Although dial callipers are not specified in this standard (see Preface), they should comply with all relevant requirements except those for the read-out and indicating mechanism.

Committee
ME-027
DocumentType
Standard
ISBN
0 7262 1129 X
Pages
17
ProductNote
Withdrawn 19-12-2019.
PublisherName
Standards Australia
Status
Withdrawn
Supersedes

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Hardcopy - English
PDF 1 User - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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