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JJG 2067-2016: Verification Scheme of Measuring Instruments for Metallic Rockwell Hardness
Status: Valid JJG 2067: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJG 2067-2016 | English | 259 |
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Verification Scheme of Measuring Instruments for Metallic Rockwell Hardness
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JJG 2067-2016
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| JJG 2067-1990 | English | 199 |
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Verification Scheme of Measuring Instruments for Metallic Rockwell Hardness
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JJG 2067-1990
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Basic data | Standard ID | JJG 2067-2016 (JJG2067-2016) | | Description (Translated English) | Verification Scheme of Measuring Instruments for Metallic Rockwell Hardness | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A53 | | Classification of International Standard | 17.100 | | Word Count Estimation | 11,195 | | Date of Issue | 2016-03-03 | | Date of Implementation | 2016-09-03 | | Older Standard (superseded by this standard) | JJG 2067-1990; JJG 2068-1990 | | Quoted Standard | JJG 112-2013; JJG 113-2013; JJF 1094 | | Regulation (derived from) | Announcement No.26 of the General Administration of Quality Supervision, Inspection and Quarantine | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to metal Rockwell hardness measuring instruments (A, B, C, D, E, F, G, H, K, N, T scale) transmission and verification. It specifies the measurement uncertainty of the metal Rockwell hardness scale from the national standard to the measurement standard and the procedures, methods and values ??transmitted to the working measuring instruments. The measurement characteristics and technical specifications of the standard, standard and work measuring instruments Specific provisions and requirements are specified. This standard also serves as a basis for the traceability of metal Rockwell hardness values ??when performing calibration work. | JJG 2067-2016: Verification Scheme of Measuring Instruments for Metallic Rockwell Hardness---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 Scheme of Measuring Instruments for Metallic Rockwell Hardness
National People's Republic of China Metrological Verification System
Metal Rockwell hardness measuring instruments
2016-03-03 release
2016-09-03 Implementation
State Administration of Quality Supervision, Inspection and Quarantine issued
Metal Rockwell hardness measuring instruments
Verification system table
Instruments forMetalicRockwelHardness
Replacing JJG 2067-1990
JJG 2068-1990
Unit. National force hardness measurement technology committee
The main drafting unit. China Institute of Metrology
Shanghai Institute of Metrology and Testing Technology
China Testing Technology Research Institute
Henan Institute of Metrology
Participated in the drafting unit. Laizhou Huayin Test Instrument Co., Ltd.
Quanzhou Fortress Donghai instrument hardness block factory
The test system commissioned by the National Force Hardness Measurement Technical Committee is responsible for the interpretation
The main system of the test system.
He Li (China Institute of Metrology)
Zhang feng (China Institute of Metrology)
Yu Weiliang (Shanghai Institute of Metrology and Testing Technology)
Xu Zhimin (China Testing Technology Research Institute)
Wang Guangjun (Henan Institute of Metrology)
Participate in the drafters.
Wang Jingtao (Laizhou Huayin Test Instrument Co., Ltd.)
Chen Jun pay (Quanzhou Fortress Donghai instrument hardness block factory)
table of Contents
Introduction (II)
1 Scope (1)
2 References (1)
3 measurement basis (1)
3.1 Metal Rockwell Hardness National Benchmark (1)
3.2 metal Rockwell hardness national sub-benchmark (2)
4 Metrological standards (3)
4.1 Standard Metal Rockwell Hardness Tester (3)
4.2 Standard Metal Rockwell Hardness Blocks (3)
5 Work measuring instruments (4)
6 metal Rockwell hardness measuring instrument test system block diagram (5)
Introduction
The system table based on JJF1104-2003 "National Metrological Verification System Table Rules" given the drafting of the rules.
The system table instead of JJG 2067-1990 "metal Rockwell hardness measuring instrument verification system", JJG 2068-
1990 "Metallic surface Rockwell hardness measuring instrument verification system". And JJG 2067-1990 and JJG 2068-1990
In addition to editorial changes, the main technical changes are as follows.
--- According to ISO standards, the metal surface Rockwell hardness as HRN, HRT scale and the original metal Rockwell hard
Degrees of other rulers combined with metal Rockwell hardness;
- Revision of the measurement uncertainty of measurement and measurement standards (see tables 3, 4, 6, JJG 2067-
1990 and JJG 2068-1990 one, two);
- the maximum allowable error of the revised working metrological appliance (see Table 5, 6, JJG 2067-1990 and JJG 2068-
1990 three, four);
--- new metal Rockwell hardness benchmarking machine, sub-reference machine and the standard machine of the sub-equipment technical requirements;
- New measurement and sub-benchmark calibration and measurement (CMC);
--- cancel the ball head and the corresponding ruler.
The previous version of the system table release.
--- JJG 2067-1990;
--- JJG 2068-1990.
Metallic Rockwell Hardness Meters
1 Scope
The test system table for metal Rockwell hardness measuring instruments (A, B, C, D, E, F, G, H, K,
N, T scale) of the value of transmission and verification. It specifies the amount of metal Rockwell hardness measured from the national benchmark to the measurement standard
And the measurement of the procedures, methods and measurements of delivery to the work metering device, the measurement uncertainty, the benchmark, the standard and the
The measurement characteristics and technical indicators of the measuring instruments give specific instructions and requirements. The test system table can also be used as
The basis for the traceability of the metal Rockwell hardness at the time of calibration work.
2 reference file
The following documents are cited in this system.
JJG 112-2013 metal Rockwell hardness tester (A, B, C, D, E, F, G, H, K, N, T scale)
JJG 113-2013 Standard Metal Rockwell Hardness Blocks (A, B, C, D, E, F, G, H, K, N, T
Scale)
Evaluation of JJF1094 measuring instrument
Where the date of the reference file, only the date of the version applies to the test system table; all do not note the date of the cited
The latest version of the document, including all modifications, applies to this system.
3 measurement basis
The metal Rockwell hardness measurement basis includes. metal Rockwell hardness national reference and sub-benchmark.
3.1 Metal Rockwell Hardness National Benchmark
3.1.1 Metal Rockwell Hardness The role of national benchmarks
Metal Rockwell Hardness National Benchmarks for the preservation, reproduction and transmission of Rockwell hardness values, is a unified national metal Rockwell
The highest basis of the hardness value. Baselines should be regularly revalued and actively participate in international alignments.
3.1.2 Composition of the metal benchmark for the Rockwell hardness of the metal
Metal Rockwell hardness national benchmark is mainly composed of metal Rockwell hardness national reference machine, including the test force applied
Mechanism, indentation depth measuring device and reference indenter group.
3.1.2.1 Test force of the reference machine
a) Maximum allowable deviation of the initial test force before and after the main test force is applied. ± 0.20%.
b) the maximum allowable deviation of the total test force. ± 0.03% for the (A ~ K) scale; for N, the T scale is
± 0.06%.
3.1.2.2 indentation depth measurement device for the reference machine
The maximum allowable error of the indentation depth measuring device is ± 0.1 μm.
3.1.2.3 Rack deformation
The influence of the frame deformation and the displacement of the specimen on the reading under its maximum test force shall not exceed 0.1HR.
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