JJF 1372-2012_English: PDF (JJF1372-2012)
| Standard ID | USD | BUY PDF | Lead-Days | Standard Title (Description) | Status |
| JJF 1372-2012 | 349 |
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Calibration Specification for Instrument of Testing Mortar-strength by Penetration Resistance Method
| Valid |
| JJF 1372-1995 | 199 |
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Operating Technical Norm of National Metrology Primary Standard of Absorbed Dose in Water for γ-ray Radiation Processing Level of Ferrous Sulfate Dosimeter
| Obsolete |
| Standard ID | JJF 1372-2012 (JJF1372-2012) | | Description (Translated English) | Calibration Specification for Instrument of Testing Mortar-strength by Penetration Resistance Method | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A58 | | Word Count Estimation | 15,124 | | Quoted Standard | JJG 30; JJG 34; JJF 1059; JGJ/T 136-2001 | | Issuing agency(ies) | State Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to type of penetration mortar strength tester (hereinafter referred to as penetration tester) calibration. |
JJF 1372-2012
Calibration Specification for Instrument of Testing Mortar-strength by Penetration Resistance Method
People's Republic of China National Metrology Technical Specifications
Penetration mortar strength tester calibration specification
Issued on. 2012-12-12
2013-03-12 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Penetration mortar strength tester calibration specification
by
Focal point. the National Technical Committee on Metering hardness force value
Main drafting unit. Henan Institute of Metrology
Zhengzhou Dong Chen Technology Co., Ltd.
Participated in the drafting. Shenzhen Academy of Metrology and Quality Inspection
This specification entrust national force value hardness measurement technical committee responsible for the interpretation
The main drafters of this specification.
Wang Guangjun (Henan Institute of Metrology)
Zhang ZJ (Henan Institute of Metrology)
Shangting Dong (Dong Chen Zhengzhou Science and Technology Co., Ltd.)
Feng Haiying (Henan Institute of Metrology)
Drafters participate.
Huangshi Yuan (Shenzhen Academy of Metrology and Quality Inspection)
table of Contents
Introduction (Ⅱ)
1 Scope (1)
2. References (1)
3 Terms (1)
3.1 Penetration Resistance Method (1)
3.2 penetration force (1)
3.3 Working stroke (1)
4 Overview (1)
5 Metrological characteristics (2)
5.1 penetration force (2)
5.2 Working stroke (2)
5.3 depth measurement device and the exposed length of the probe (2)
5.4 measurement nail (2)
6 calibration conditions (3)
Environmental conditions 6.1 (3)
6.2 calibration measurement standards and equipment (3)
7 calibration items and calibration methods (3)
7.1 penetration force (3)
7.2 working stroke (3)
7.3 depth measurement device and the exposed length of the probe (4)
7.4 measure nails (4)
8 calibration results (4)
9 Recalibration interval (4)
Appendix A penetration tester Penetration Force showed the error of the measurement results Uncertainty Evaluation (5)
Appendix B penetration mortar strength tester calibration record format (7)
Appendix C penetration strength of mortar-type detector within the calibration certificate page format (8)
introduction
This specification prepared on the basis JJF 1071 "National Rules for the preparation of measurement calibration specifications" and JJF 1059 "measurement uncertainty
Evaluation and expression "and reference JGJ/T 136-2001" detected penetration Technical specification for compressive strength of masonry mortar. "
This specification is the first release.
Penetration mortar strength tester calibration specification
1 Scope
This calibration specification applies to penetration strength of mortar-type detector (hereinafter referred to as penetration detector) calibration.
2. References
This specification refers to the following documents.
JJG30 Universal caliper
JJG34 indicator (pointer, digital display)
JJF 1059 Evaluation and Expression of Uncertainty in Measurement
JGJ/T 136-2001 penetration assay compressive strength of masonry mortar Technical specification
For dated references, only the dated edition applies to this specification; undated reference documents
Member, the latest edition (including any amendments) applies to this specification.
3 Terms
3.1 Penetration assay testofponeirationresisiancemethod
According to the correlation between the measured nail penetration depth of the mortar and the mortar between the compressive strength, the use of compression spring urging work,
Put a nail penetration test mortar, mortar detection method to determine the compressive strength of the nail from the measured penetration depth.
3.2 penetration force poneirationresisianceforce
Penetration detector working force generated by the elastic deformation of the spring.
3.3 Working stroke worktravel
When penetration detector working, measuring nail penetration depth may range mortar.
4 Overview
Penetration mortar strength tester typically used for masonry mortar joints strength of on-site rapid testing. The apparatus includes penetration detection
Tester host and depth gauge into two parts. Penetration Tester host configuration shown in Figure 1. Penetration mortar strength detection
Compression spring urging instrument used to work, to a special nail penetration test mortar, using the measured depth of nail penetration resistance and mortar
This principle is related to the compressive strength, measured in accordance with the nail penetration depth to detect the compressive strength of mortar.
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