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GB/T 9138-2015: Rebound test hammer
Status: Valid GB/T 9138: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 9138-2015 | English | 279 |
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3 days [Need to translate]
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Rebound test hammer
| Valid |
GB/T 9138-2015
|
| GB/T 9138-1988 | English | 359 |
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3 days [Need to translate]
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Concrete Test Hammer
| Obsolete |
GB/T 9138-1988
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PDF similar to GB/T 9138-2015
Basic data | Standard ID | GB/T 9138-2015 (GB/T9138-2015) | | Description (Translated English) | Rebound test hammer | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N11 | | Classification of International Standard | 19.100 | | Word Count Estimation | 13,155 | | Date of Issue | 2015-05-15 | | Date of Implementation | 2015-12-01 | | Older Standard (superseded by this standard) | GB/T 9138-1988 | | Quoted Standard | GB/T 1239.1; GB/T 6587 | | Regulation (derived from) | National Standard Announcement 2015 No. 15 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Standard specifies the terms and definitions Hammer, classification, symbols and marks, requirements, test methods, inspection rules, marking, packaging and storage. This Standard applies to the nominal energy 9.800J, 5.500J, 4.500J, 2.207J, 0.735J and 0.196J six hammer. | GB/T 9138-2015: Rebound test hammer---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.
Rebound test hammer
ICS 19.100
N11
National Standards of People's Republic of China
Replacing GB/T 9138-1988
Hammer
Issued on. 2015-05-15
2015-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 classification, symbols and marks 2
5 Requirement 2
6 Test Method 4
7 Inspection rules 5
8 signs, packaging and storage 6
Appendix A (informative) hammer impact energy test methods 7
Appendix B (normative) steel anvil 9
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB/T 9138-1988 "Hammer."
The main technical differences between standard compared with GB/T 9138-1988 as follows.
--- Hammer modified terms and definitions;
--- Hammer modified classification;
--- Delete the original standard impact energy is 29.430J Hammer specifications and requirements (the original standard of Table 1 and 5.2.4);
--- Nominal increase energy 9.800J, 5.500J, 4.500J Hammer and 0.196J four kinds of specifications and requirements;
--- Increased digital Hammer requirements;
--- Increasing the quality hammer shells, shells hit extension spring stiffness requirements;
--- Remove the products and services promise (formerly standard 5.8);
--- Remove the product's three quality grades (original standard Table 2);
--- Hammer no longer on the mechanical requirements (the original standard 6.1 to 6.3) high temperature, low temperature and impact test;
--- Increase the informative appendix "Hammer impact energy test methods" (see Appendix A).
This standard is proposed and managed by the Ministry of Housing and Urban-Rural Development of the People's Republic of China.
This standard drafting unit. China Academy of Building Research, Tianjin built instrument testing machine Co., located in Shaanxi Province Building Science
Design Institute, Shandong Leling Hammer Factory, Beijing Zhibo Technology Co., Ltd., Zhoushan City, Bo Yuan Science and Technology Development Co., Ltd., Beijing Kang Kerui works
Testing Technology Co., expensive Chang Precision Machinery (Tianjin) Co., Ltd.
The main drafters of this standard. Chen Fan, Zhang Rongcheng, teach Xu Yu, Dong Weibin, Wen Wu Heng, Wang Mingtang, pipe Jun, Zhu Huafeng, often Zhihong, Zhang Min.
This standard replaces the standards previously issued as follows.
--- GB/T 9138-1988.
Hammer
1 Scope
This standard specifies the terms and definitions Hammer, classification, symbols and marks, requirements, test methods, inspection rules, marking, packaging and
Storage.
This standard applies to nominal energy 9.800J, 5.500J, 4.500J, 2.207J, 0.735J and 0.196J six hammer.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 1239.1 Cold coiled helical springs - Technical specifications - Part 1. Tension springs
GB/T 6587 General specification for electronic measuring instruments
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Shells hit extension spring free length freelengthofspring
Shells hit extension spring can produce length elongation portion is completely free state.
3.2
Shells hit extension spring shock length strokeofspring
Stretching the length of the shells hit extension spring when the bomb hit the hammer.
3.3
Rebound values \u200b\u200breboundnumber
Hammer bouncing bombs and shells hit extension spring from the impact of full-scale value multiplied by the ratio of the length of the scale.
3.4
Nominal energy potentialenergyofspring
Without considering the shells hit extension spring assembly deformed condition, shells hit extension spring tensile deformation equal to the length of the impact of the length of the storage shells hit extension spring
Potential energy.
3.5
Impact energy hammerimpactenergy
When the bomb hit the hammer and the fillip bar, playing the hammer fillip bar to pass through the energy of the test surface.
3.6
Indication engraved lines on the scale is read directly from the instrument out of Hammer rebound values \u200b\u200bthrough pointers slider.
3.7
With a rebound value scale digital display and memory function Hammer, and both data processing, printing, and data transfer from the instrument
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