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ASME B107.300 2021

ASME B107.300 2021

$98.04

ASME B107.300 – 2021 Hand Torque Tools and Torque Testers

Published By Publication Date Number of Pages
ASME 2021 36
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This Standard provides performance and safety requirements for manually operated torque instruments, commonly used for mechanical measurement of torque for control of the tightness of threaded fasteners; manually operated electronic torque instruments with integral or interchangeable heads, including requirements for endurance, torque value ranges, and accuracy for these torque instruments; and electronic torque testers, used for checking manually operated hand-held torque wrenches and screwdrivers. It does not cover products infrequently utilized or those designed for special purposes. This standard is a consolidation and revision of: B107.14-2004, Hand Torque Tools (Mechanical), B107.28-2005, Electronic Torque Instruments, and B107.29-2005, Electronic Tester, Hand Torque Tools

PDF Catalog

PDF Pages PDF Title
4 CONTENTS
6 FOREWORD
7 ASME B107 COMMITTEE ROSTER
8 CORRESPONDENCE WITH THE B107 COMMITTEE
10 1 SCOPE
2 DEFINITIONS
3 REFERENCES
11 4 CLASSIFICATION
5 PERFORMANCE REQUIREMENTS
5.1 Design — Category 14 Mechanical
12 Tables
Table 4-1 Classification: Category 14 Hand Torque Tools, Mechanical
14 Table 4-2 Classification: Category 28 Electronic Torque Instruments
15 Figures
Figure 5.1.1‐1 Category 14, Type I, Class A
Figure 5.1.1‐2 Category 14, Type I, Class B
Figure 5.1.1‐3 Category 14, Type I, Class C
Figure 5.1.1‐4 Category 14, Type I, Class D
Table 4-3 Classification: Category 29 Electronic Torque Testers
16 Figure 5.1.2‐1 Category 14, Type I, Class E, Style 1
Figure 5.1.2‐2 Category 14, Type I, Class E, Style 2
Figure 5.1.3‐1 Category 14, Type II, Class A, Style 2
Figure 5.1.3‐2 Category 14, Type II, Class A, Style 3 (Shown Without Interchangeable Head)
Figure 5.1.3‐3 Category 14, Type II, Class B, Style 2
Figure 5.1.3‐4 Category 14, Type II, Class B, Style 3 (Shown Without Interchangeable Head)
Figure 5.1.3‐5 Category 14, Type II, Classes A and B, Style 3 (Shown With Interchangeable Head)
17 5.2 Design — Category 28 Electronic
Figure 5.1.3‐6 Flexible Head
Figure 5.1.4‐1 Category 14, Type III, Class A, Style 1, Design A
18 5.3 Design — Category 29 Electronic Tester
5.4 Materials
5.5 Marking
Figure 5.1.4‐2 Category 14, Type III, Class A, Style 1, Design B
Figure 5.1.4‐3 Category 14, Type III, Class A, Style 2, Design A
Figure 5.1.4‐4 Category 14, Type III, Class A, Style 2, Design B
Figure 5.1.4‐5 Category 14, Type III, Class B
19 5.6 Finish
5.7 Drives
Figure 5.1.5-1 Category 14, Type IV Break‐Over Wrench
Figure 5.7.1-1 Drive Ball Location
20 5.8 Capacity
5.9 Increments
5.10 Accuracy
5.11 Operating Load
5.12 Operating Modes Category 28
Figure 5.10.1-1 Gravity‐Independent Test Position
Table 5.8-1 Torque Instrument Capacity
Table 5.9-1 Maximum Torque Instrument Increment Value as Percent of Rated Capacity
21 5.13 Operating Conditions — Category 29
5.14 Overload
5.15 Battery Life Category 28
6 TESTS
6.1 Visual Examination
Table 5.10.1-1 Torque Instrument Torque Accuracy
Table 5.10.2-1 Torque Instrument Angle Accuracy
Table 5.11-1 Torque Instrument Operating Load
22 6.2 Parallax Error — Category 14, Type I
6.3 Accuracy Tests — Category 14
6.4 Accuracy Tests — Category 28
6.5 Accuracy Tests — Category 29
6.6 Gravity Error — Category 14
Figure 6.1-1 Graduated Range
23 Figure 6.3-1 Accuracy Test Flowchart — Category 14
24 Figure 6.4.1-1 Accuracy Test Flowchart — Category 28 Torque Test
25 Figure 6.4.2-1 Accuracy Test Flowchart — Category 28, Types II and IV Angle Test
26 Figure 6.5.2-1 Accuracy Test Flowchart — Category 29
27 6.7 Calibration Life and Overload — Category 14
6.8 Calibration and Cycle Life Test — Category 28
6.9 Overload Test — Categories 28 and 29
6.10 Flexible Head Error Test
Figure 6.6.2-1 Gravity‐Dependent Test Positions
28 6.11 Endurance Test — Category 29
7 SAFETY REQUIREMENTS AND LIMITATIONS OF USE
29 Table A‐1 Examples of Accuracy Percent Calculation
NONMANDATORY APPENDIX A ACCURACY EXAMPLES
30 Table A‐2 Examples of Test Point Calculation for Accuracy Test
Table A‐3 Example of Reading Below 20%
31 NONMANDATORY APPENDIX B CORRELATION OF ASME B107.300 TO ISO 6789
32 Table B-1 Correlation of ASME B107.300 to ISO 6789

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