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JJG 960-2012: Verification Regulation of Level Verification System
Status: Valid JJG 960: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJG 960-2012 | English | 489 |
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Verification Regulation of Level Verification System
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JJG 960-2012
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| JJG 960-2001 | English | 559 |
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Verification Regulation of Level Verification System
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JJG 960-2001
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Basic data | Standard ID | JJG 960-2012 (JJG960-2012) | | Description (Translated English) | Verification Regulation of Level Verification System | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A52 | | Classification of International Standard | 17.040 | | Word Count Estimation | 21,228 | | Older Standard (superseded by this standard) | JJG 960-2001 | | Regulation (derived from) | State Administration of Quality Supervision, Inspection and Quarantine Notice 2012 No. 63; | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to all kinds of water level verification device initial verification, testing and use of follow-up inspection. | JJG 960-2012: Verification Regulation of Level Verification System---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.
Verification Regulation of Level Verification System
National Metrological Verification Regulation of the People's Republic of China
Level Verification Device
2012-04-17 release
2012-10-17 Implementation
State Administration of Quality Supervision, Inspection and Quarantine issued
Verification procedure of level tester
stem
Replacing JJG 960-2001
Unit. National Geometric Length Measurement Technical Committee
The main drafting unit. China Institute of Metrology
Henan Institute of Metrology
Participate in the drafting unit. National photoelectric range finder testing center
Zhejiang Institute of Metrology
This procedure is commissioned by the National Geometry Length Metrology Technical Committee to explain
The main drafters of this procedure.
Shen Ni (China Institute of Metrology)
Wang Heyan (China Institute of Metrology)
Zhang Weidong (Henan Institute of Metrology)
Participate in the drafters.
Zhai Qingbin (National Photoelectric Rangefinder Testing Center)
Jin Ting (Zhejiang Institute of Metrology)
table of Contents
Introduction (II)
1 Scope (1)
2 Overview (1)
3 Measurement performance requirements (1)
3.1 i angle micrometer indication error (1)
3.2 flat panel microcomputer indication error (1)
3.3 micro tilting table indication error (1)
3.4 Horizontal line compensator compensation error (1)
3.5 Horizontal Alignment Deviation (2)
3.6 multi-target deviation from the line error (2)
4 General technical requirements (2)
4.1 Appearance (2)
4.2 Interaction of components (2)
5 Measuring instruments (2)
5.1 Test conditions (2)
5.2 Verification Project (3)
5.3 Verification method (3)
5.4 Processing of test results (8)
5.5 Test cycle (8)
Appendix A Calculation Form (9)
Appendix B Automatic Anping Level Verification Device Horizontal Alignment Deviation Method
APPENDIX C INSPECTION CERTIFICATE AND QUALIFICATION RESULTS Notice Page Format (12)
Appendix D Level Level Verification Device Horizontal Alignment Deviation Measurement Results Uncertainty Evaluation Report Example (13)
Introduction
JJG 425 "level", JJG 8 "level scale" and JJG 960 "level test device" together constitute a large
Measures for the measurement of the leveling of instruments.
JJG 960-2012 "Level Verification Device" is written in JJF1002-2010 "National Metrological Verification Regulation
The JJG 960-2001 "Level Verification Device" is revised on the basis of the rules and basis. versus
JJG 960-2001 "level test device" compared to the editorial changes in the main technical changes are as follows.
--- JJG 425-1994 "Level" and JB/T 7399-1994 "Parallel light pipe" are cited in the literature.
Metrological performance requirements increase the i-angle micrometer indication error requirements, easy to improve the accuracy of the test;
Cancel the parallel light pipe focal length and scale instructions error requirements.
- The range of measurement of the level calibrator has been modified in the procedure.
- the calibration method, the level of deviation for the automatic Anping and self-collimation of these two devices were done
Introduction.
- In Appendix B, an automatic ampere-type verification device is introduced for the use of the device itself.
Number, only the level of the pedal to complete the test method.
Level Verification Device
1 Scope
This procedure applies to all types of level test device of the first test, follow-up inspection and use of inspection.
2 Overview
Level measuring device is a kind of measuring device which can produce a horizontal line and can realize multi-target
Mainly used for level calibration or calibration. According to the structure it can be divided into automatic Anping (see Figure 1) and self-collimation (see Figure
2), according to the level of deviation of its accuracy can be divided into 1, 2 and 3.
Figure 1 Schematic diagram of automatic Anping level tester
1 - automatic Anping parallel light tube; 2 - was seized level
Figure 2 from the collimation level level test device diagram
1 - parallel light tube; 2 - seized level
3 Measurement performance requirements
3.1 i angle micrometer indication error
i angle micrometer indication error requirements in Table 1.
3.2 flat panel microcomputer indication error
Flat plate microcomputer indication error requirements in Table 1.
3.3 micro tilting table indication error
Micro tilting table indication error requirements see Table 1.
3.4 Horizontal alignment compensator compensation error
Horizontal line compensator compensation error requirements in Table 1.
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