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JJF 1320-2011: Calibration Specification for Instrumented Charpy Pendulum Impact Testing Machines
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
JJF 1320-2011	English	419	Add to Cart	3 days [Need to translate]	Calibration Specification for Instrumented Charpy Pendulum Impact Testing Machines
JJF 1320-1990	English	279	Add to Cart	3 days [Need to translate]	O.T.N. for Secondary Standard of Distribution(Colour) Temperature of Light Sources

JJF 1320-2011: Calibration Specification for Instrumented Charpy Pendulum Impact Testing Machines

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Calibration Specification for Instrumented Charpy Pendulum Impact Testing Machines People's Republic of China National Metrology Technical Specifications Instrumented Charpy pendulum impact tester calibration specification Issued on. 2011-11-14 2012-02-14 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Instrumented Charpy pendulum impact Test machine calibration specifications Machines This specification by the State Administration of Quality Supervision, Inspection and Quarantine approved on November 14, 2011, and from From February 14, 2012 into effect. Focal point. the National Technical Committee on Metering hardness force value Main drafting unit. Iron and Steel Institute Wuzhong Material Testing Machine Co., Ltd. Participated in the drafting. Tenneco Beijing Analytical Instrument Co., Ltd. Hubei Provincial Institute of Measurement and Testing US Masters Industrial Systems (China) Co., Ltd. This specification entrust national force value hardness measurement technical committee responsible for the interpretation The main drafters of this specification. Zhou Wei Song (Iron and Steel Research Institute) Chen Wu (Iron and Steel Research Institute) Wang Peking (Wuzhong Material Testing Machine Co., Ltd.) Drafters participate. Zhangzhuang (Tenneco Beijing Analytical Instruments Co., Ltd.) Hu Xiang (Hubei Institute of Measurement and Testing) TRANSACTIONS (US Masters Industrial Systems (China) Co., Ltd.) Chunhua (Iron and Steel Research Institute)

table of Contents

1 Scope (1) 2. References (1) 3 Terms and units of measurement (1) 3.1 Terms and definitions (1) Symbols 3.2 (3) 4 Overview (4) 5 Metrological characteristics (4) 5.1 basic performance test machine (4) 5.2 Force measuring system (4) 5.3 Tester energy (4) 6 calibration conditions (4) Environmental conditions 6.1 (4) 6.2 Calibration projects and calibration equipment (5) Calibration Method 7 (5) 7.1 basic performance test machine (5) 7.2 Force measuring system (5) 7.3 Energy Tester (6) 8 calibration results (6) 9 Recalibration interval (6) Appendix A calibration certificate content format (7) Appendix B Instrumented Charpy pendulum impact testing machine calibration records (8) Appendix C to calibrate the force support block (9) Appendix D curve test three types of samples (10) APPENDIX E UNCERTAINTY energy impact assessment (12) Instrumented Charpy pendulum impact tester calibration specification

1 Scope

This standard applies to equipment metal summer tester (hereinafter referred to as tester) than the calibration pendulum impact. 2. References This specification references the following documents. JJG145-2007 Charpy impact test machine JJG2077-1990 Charpy impact test system capable of measuring instruments GB/T 229-2007 metallic materials - Charpy pendulum impact test method GB/T 3808-2002 pendulum impact testing machines (ISO 148-2.1998, Metalicmateri- als-Charpypendulumimpacttest-Part 2. Verificationoftestmachines, MOD) Test equipment test method GB/T 19748-2005 Steel Charpy V-notch Charpy impact (ISO 14556.2000, Steel-CharpyV-notchpendulumimpacttest-Instrumentedtest method, MOD) ASTM E2298-09 StandardTestMethodsforInstrumentedImpactTestingof MetalicMaterials 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 and units of measurement

3.1 Terms and Definitions Eigenvalues 3.1.1 Force Force characteristic values include yield strength, the most vigorous, unstable crack initiation force and the termination of unstable crack force (see picture 1). 3.1.1.1 yield strength (Fgy) generalyieldforce Force - displacement curve from straight up to the part of the curve rising portion of the force is increased when the transition point. 3.1.1.2 maximum force (Fm) maximumforce Force - the maximum force-displacement curve. 3.1.1.3 unstable crack initiation force (Fiu) initiationforceofunstablecrackpropagation Force - the force-displacement curve at the beginning of a sharp decline in strength. Note. Indicates unstable crack propagation start. 3.1.1.4 unstable crack propagation termination force (Fa) arrestforceofunstablecrackpropagation Force - the force-displacement curve sharply force terminates. 3.1.2 displacement eigenvalues Displacement characteristic values yield displacement, displacement at maximum force, displacement unstable crack initiation, crack instability ...