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ASME B89.1.13 - 2013(R2022) - Micrometers, 2013
- CONTENTS
- FOREWORD
- ASME B89 COMMITTEE ROSTER
- CORRESPONDENCE WITH THE B89 COMMITTEE
- 1 SCOPE
- 2 DEFINITIONS
- 3 REFERENCES
- 4 MICROMETERS -- GENERAL [Go to Page]
- 4.1 General Design
- 4.2 Resolution
- 4.3 Finish
- 4.4 Identification Marking
- 4.5 Adjustments
- 4.6 Micrometers Screw Spindle
- 4.7 Measuring Faces
- 4.8 Graduations
- 4.9 Effect of Spindle Locking Device
- 4.10 Definition of an Indication
- 4.11 Temperature
- 4.12 Decision Rules
- 4.13 Traceability
- 4.14 Specifications
- 5 OUTSIDE MICROMETERS SEE FIG. 5-1 [Go to Page]
- 5.1 Frame
- 5.2 Measuring Faces
- 5.3 Spindle-Anvil Alignment
- 5.4 Maximum Permissible Errors MPE [Go to Page]
- 5.4.1 Length Measurement Error.
- 5.4.2 Parallelism Error.
- 5.4.3 Repeatability.
- 5.5 Interchangeable Anvils
- 5.6 Setting Standards
- 5.7 Specialty Micrometers
- 6 INSIDE MICROMETERS SEE FIG. 6-1 [Go to Page]
- 6.1 Maximum Permissible Errors MPE
- 7 DEPTH MICROMETERS SEE FIG. 7-1 [Go to Page]
- 7.1 Base
- 7.2 Measuring Rods
- 7.3 Maximum Permissible Errors MPE [Go to Page]
- 7.3.1 Length Measurement Error.
- 7.3.2 Parallelism Error.
- 8 MICROMETERS WITH DIGITAL READOUT [Go to Page]
- 8.1 Mechanical Digital See Fig. 8.1-1
- 8.2 Electronic Digital See Fig. 8.2-1
- Figures [Go to Page]
- Fig. 5-1 Typical Outside Micrometer
- Fig. 6-1 Typical Inside Micrometer
- Fig. 7-1 Typical Depth Micrometer
- Fig. 8.1-1 Mechanical Digital Micrometer
- Fig. 8.2-1 Electronic Digital Micrometer
- Tables [Go to Page]
- Table 5.1-1 Maximum Permissible Errors of Outside Micrometers (Metric System)
- Table 5.1-2 Maximum Permissible Errors of Outside Micrometers (Inch System)
- Table 5.6-1 Metric-Measure Setting Standards
- Table 5.6-2 Inch-Measure Setting Standards
- Table 6.1-1 Maximum Permissible Errors of Inside Micrometers (Metric System)
- Table 6.1-2 Maximum Permissible Errors of Inside Micrometers (Inch System)
- Table 7.3.1-1 Maximum Permissible Errors of Depth Micrometers (Metric System)
- Table 7.3.1-2 Maximum Permissible Errors of Depth Micrometers (Inch System)
- NONMANDATORY APPENDIX A GOOD OPERATING PROCEDURE [Go to Page]
- A-1 GENERAL
- A-2 MICROMETER, OUTSIDE [Go to Page]
- A-2.1 Zero Setting, Mechanical Micrometer
- A-2.2 Zero Setting, Digital Micrometer
- A-2.3 Zero Setting, Large Micrometers
- A-2.4 Friction or Ratchet Stop
- A-2.5 Micrometer Stand
- A-2.6 How to Read the Micrometer [Go to Page]
- A-2.6.1 Micrometer, Outside, Metric, 0.01 mm Resolution.
- A-2.6.2 Micrometer, Outside, Inch, 0.001 in. Resolution.
- A-3 MICROMETER, INSIDE [Go to Page]
- A-3.1 Measuring Holes
- A-3.2 Measuring Large Pieces
- A-4 MICROMETER, DEPTH [Go to Page]
- A-4.1 Hand Pressure
- A-4.2 Proper Reading of Graduation
- NONMANDATORY APPENDIX B ENVIRONMENTAL CONSIDERATIONS [Go to Page]
- B-1 GENERAL
- B-2 TEMPERATURE [Go to Page]
- B-2.1 Reference Temperature
- B-2.2 Heat Transfer
- B-2.3 Working Temperature
- B-2.4 Difference Due to Dissimilar Materials
- B-2.5 Soak Time
- B-3 HUMIDITY
- B-4 CLEANLINESS
- NONMANDATORY APPENDIX C TEST METHODS [Go to Page]
- C-1 GENERAL [Go to Page]
- C-1.1 Zero-Setting Check
- C-2 MICROMETERS, OUTSIDE [Go to Page]
- C-2.1 Visual Inspection
- C-2.2 Flatness Check
- C-2.3 Length Measurement Error Test
- C-2.4 Parallelism Error Test for Micrometers 25 mm 1 in. or Less
- C-2.5 Parallelism Error Test for Large Micrometers
- C-2.6 Parallelism Error Test Using Optical Parallels
- C-2.7 Setting Standards Calibration
- C-3 MICROMETERS, INSIDE [Go to Page]
- C-3.1 Visual Inspection
- C-3.2 Length Measurement Error Test [Go to Page]
- C-3.2.1 Fixed Length Inside Micrometer.
- C-3.2.2 Inside Micrometer With Interchangeable Rods.
- C-4 MICROMETER, DEPTH [Go to Page]
- C-4.1 Visual Inspection
- C-4.2 Base Flatness Check
- C-4.3 Length Measurement Error Test
- C-4.4 Parallelism Error Test
- C-4.5 Interchangeable Rods
- NONMANDATORY APPENDIX D UNCERTAINTY FOR MICROMETER CALIBRATIONS [Go to Page]
- D-1 INTRODUCTION
- D-2 INFORMATIVE REFERENCES
- D-3 MICROMETER PARAMETERS
- D-4 SOURCES OF ERROR
- D-5 COMMON PRACTICES [Go to Page]
- D-5.1 General
- D-5.2 Performance Verification
- D-5.3 Gage Block Size
- D-5.4 Temperature Correction
- D-6 EXAMPLE UNCERTAINTY BUDGET [Go to Page]
- D-6.1 0 mm to 25 mm Digital Outside Micrometer
- D-6.2 Uncertainty Validity Conditions
- D-6.3 Reference Standard [Go to Page]
- D-6.3.1 Gage Block Tolerance.
- D-6.3.2 Calibration Uncertainty
- D-6.3.3 Independency.
- D-6.4 Deviation From Reference Temperature [Go to Page]
- D-6.4.1 General Equation.
- D-6.4.2 Uncertainty in Nominal CTE.
- D-6.4.3 Nominal CTE Difference.
- D-6.5 Temperature Difference
- D-6.6 Combined and Expanded Uncertainty
- D-6.7 Conformance Test Application of Decision Rule
- D-7 LARGER MICROMETER EXAMPLE [Go to Page]
- D-7.1 75 mm to 100 mm Digital Outside Micrometer
- D-7.2 Uncertainty Validity Conditions
- D-7.3 Short Gage Block Use
- D-7.4 Change in Average Temperature [Go to Page]
- D-7.4.1 General Equation.
- D-7.4.2 Uncertainty in Nominal CTE.
- D-7.4.3 Nominal CTE Difference.
- D-7.5 Change in Temperature Difference
- D-7.6 Wringing
- D-7.7 Combined and Expanded Uncertainty
- D-8 CONCLUSION
- NONMANDATORY APPENDIX E COMPARISON WITH ISO 3611:2010 [Go to Page]
- How can you reach us? ItŒs easier than ever! [Go to Page]
