JJG 817-2011 English PDF

US$419.00 · In stock
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JJG 817-2011: Verification Regulation of Rebound Test Hammer
Status: Valid

JJG 817: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 817-2011	419	Add to Cart	3 days	Verification Regulation of Rebound Test Hammer	Valid
JJG 817-1993	559	Add to Cart	4 days	Concrete Test Hammer	Obsolete

Similar standards

GB/T 36126   JJG 797   GB/T 1885   JJG 126   JJG 815   JJG 808   

Basic data

Standard ID: JJG 817-2011 (JJG817-2011)
Description (Translated English): Verification Regulation of Rebound Test Hammer
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Word Count Estimation: 18,155
Date of Issue: 2011-09-14
Date of Implementation: 2012-03-14
Older Standard (superseded by this standard): JJG 817-1993
Quoted Standard: GB/T 9138-1998
Regulation (derived from): AQSIQ Announcement No. 134 of 2011
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to Hammer's initial verification, testing and use of follow-up checks.

JJG 817-2011: Verification Regulation of 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.
Verification Regulation of Rebound Test Hammer State verification procedures People's Republic of China Hammer Issued on. 2011-09-14 2012-03-14 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Hammer test procedures Replacing JJG 817-1993 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine on September 14, 2011, approved and since From March 14, 2012 into effect. Focal point. the National Technical Committee on Metering hardness force value Main drafting unit. Shaanxi Provincial Academy of Building Research China Institute of Metrology Participated in the drafting. Zhoushan Bo Yuan Science and Technology Development Co., Ltd. Leling City, Shandong Province Hammer plant This procedure hardness values measured force commissioned by the National Technical Committee is responsible for interpretation The main drafters of this procedure. Wen Heng Wu (Shaanxi Provincial Academy of Building Research) Zhang Wei (China Institute of Metrology) Drafters participate. Zhu Huafeng (Zhoushan Bo Yuan Science and Technology Development Co., Ltd.) Wei Chaoqi (Shaanxi Provincial Academy of Building Research) Wang Mingtang (Shandong Province Leling Hammer Factory)

table of Contents

1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) 4 Overview (1) 5 metering performance requirements (2) 6 General Requirements (4) 6.1 Appearance (4) 6.2 moving part (4) 7 control of measuring instruments (4) 7.1 test conditions (4) 7.2 test items and test methods (5) 7.3 Verification Results Processing (8) 7.4 test cycle (8) Appendix A Hammer test records (9) Appendix B Hammer test certificate-page format (10) Appendix C Hammer test results in the notice page format (11) Appendix D Hammer verification device (12) Appendix E Hammer Calibrator tension spring (13) Hammer test procedures

1 Scope

The order applies to Hammer's initial verification, use and subsequent verification check. 2. References GB/T 9138-1988 Hammer For dated references, only the dated edition applies to this procedure; undated reference documents Member, the latest edition (including any amendments) applies to this procedure.

3 terminology and units of measurement

3.1 shells hit extension spring stretched length tensilelengthofelastictensionspring Bullet shells hit the hammer decoupling moment tension spring is stretched length. 3.2 rebound values reboundvalue Hammer bouncing bombs and shells hit extension spring stretch distance percentile ratio of length. 3.3 starts playing the hammer position takeoffpositionofelastichammer Bomb hammer strikes the fillip bar instantaneous location. 3.4 projectile hammer decoupling position unhookpositionofelastichammer When Hammer bomb hit, playing hammer position in which the moment of decoupling. 3.5 Digital Hammer digitalreboundtesthammer Pointer direct reading instrument based on the increased resilience rebound value acquisition, display, storage, strength calculation and other data processing Function Hammer.

4 Overview

Hammer is used to detect concrete, mortar, brick compressive strength equipment, mechanical structure shown in Figure 1. Its original Surface treatment is obtained by flicking analyte rebound value to the measured rebound value as the compressive strength of relevant indicators to Estimating compressive strength test substance. ......

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