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JJF 1134-2005: Calibration Specification for Working Force Measuring Machines for Special Purposes
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Calibration Specification for Working Force Measuring Machines for Special Purposes
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JJF 1134-2005
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Basic data | Standard ID | JJF 1134-2005 (JJF1134-2005) | | Description (Translated English) | Calibration Specification for Working Force Measuring Machines for Special Purposes | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A53 | | Classification of International Standard | 17.100 | | Word Count Estimation | 17,131 | | Date of Issue | 2005-04-28 | | Date of Implementation | 2005-07-28 | | Older Standard (superseded by this standard) | JJG 609-1989; JJG 333-1996; JJG 787-1992 | | Quoted Standard | JJF 1059; JJF 1094 | | Issuing agency(ies) | State Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to: all kinds and levels compression tester, grain strength tester, and other special work dynamometer (hereinafter referred dynamometer) force value calibration. Other special force measuring device may refer to this force value calibration standard. | JJF 1134-2005: Calibration Specification for Working Force Measuring Machines for Special Purposes
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Calibration Specification for Working Force Measuring Machines for Special Purposes
National Metrology Technical Specification of the People's Republic
Special working dynamometer calibration specification
Released on.2005-04-28
2005-07-28 implementation
The General Administration of Quality Supervision, Inspection and Quarantine issued
Special working dynamometer calibration specification
Instead of JJG609-1989
JJG333-1996
JJG787-1992
This specification was approved by the General Administration of Quality Supervision, Inspection and Quarantine on April 28,.2005, and since.2005.
It will take effect on July 28th.
Focal Point. National Strength Hardness Measurement Technical Committee
Drafting unit. Shanghai Institute of Metrology and Testing Technology
China Institute of Metrology
This specification is interpreted by the National Strength and Hardness Measurement Technical Committee.
The main drafters of this specification.
Zhang Guiren (Shanghai Institute of Metrology and Testing Technology)
Hua Linhu (Shanghai Institute of Metrology and Testing Technology)
Zhang Zhimin (China Institute of Metrology)
Participate in the drafters.
Yan Yueling (Shanghai Institute of Metrology and Testing Technology)
table of Contents
1 Scope (1)
2 Citations (1)
3 Overview (1)
4 Measurement characteristics (1)
4.1 Basic requirements (1)
4.2 Safety protection device (1)
4.3 Dynamometer accuracy level and technical indicators (2)
4.4 Additional Features (3)
5 Calibration conditions (3)
5.1 Environmental conditions (3)
5.2 Force Standard (3)
6 Calibration items and calibration methods (3)
6.1 Calibration Project (3)
6.2 Calibration Method (4)
6.3 Additional functions (6)
7 Calibration result expression (6)
8 re-study interval (6)
Appendix A Evaluation Method for Uncertainty of Calibration Results of Special Working Force Measuring Machines (7)
Appendix B Calibration Report Inner Page Format 1 (10)
Appendix C Calibration Report Inner Page Format 2 (11)
Appendix D Special Work Dynamometer Calibration Record (12)
Special working dynamometer calibration specification
1 Scope
This specification is applicable to special working force measuring machines such as compression testers and particle strength testers of various specifications and grades.
(hereinafter referred to as the force measuring machine) force value calibration.
The force value calibration of other special force measuring devices can be referred to this specification.
2 Citations
JJF 1059-1999 Evaluation and representation of measurement uncertainty
JJF 1094-2002 Measuring instrument characteristics evaluation
Use of this specification should be done with the current valid version of the above cited documents.
3 Overview
The force measuring machine is widely used in products, components and their tensile strength, pressure or related parameters in manufacturing and assembly processes.
calibration. The force measuring machine is mainly composed of two parts. a force driving device and a force indicating device. When the dynamometer is working, it is driven by force.
Apply a test force to the sample. The force indicating device indicates the measured force value or related measurement result.
4 Measurement characteristics
4.1 Basic requirements
A) The indicating device of the dynamometer should use the legal unit of measurement consistent with the unit being measured as the basic meter
Bit.
B) The relevant measurement results displayed by the indicating device shall be able to provide technical descriptions, calculation formulas and
Verification of constants and coefficients.
C) Zero adjustment function of the indicating device
1) The zero adjustment range of the force value should be greater than the gravity generated by the self-contained attachment, and different working positions and directions.
The maximum zero point change caused by the general consideration of vertical and horizontal directions.
2) The zero adjustment function should be limited after entering the test state or the measured value is greater than the lower measurement limit.
3) When there are multiple ranges in the measuring part, the zero points of each range switching should be consistent, and the change is not greater than the smaller range.
1/2 of the maximum allowable error.
D) The measured values displayed by numbers should be able to distinguish between positive and negative numbers.
4.2 Safety device
A) The force measuring machine shall have a safety protection structure to prevent the sample from breaking, splashing, unstable popping, breaking and throwing, etc.
(or) facilities.
B) The following safety protection functions should be used when the loading system adopts hydraulic and mechanical driving methods.
1) When the test force reaches 102%~110% of the rated value, the overload protection device should immediately stop applying the force value.
2) When the power drive carrier moves to the limit position, the limit device should immediately stop moving.
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