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JJF 1447-2014 English PDF

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JJF 1447-2014: Calibration Specification for Ultrasonic Flaw Detectors by Time-of-Flight Diffraction
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JJF 1447-2014English529 Add to Cart 4 days [Need to translate] Calibration Specification for Ultrasonic Flaw Detectors by Time-of-Flight Diffraction Valid JJF 1447-2014

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Basic data

Standard ID JJF 1447-2014 (JJF1447-2014)
Description (Translated English) Calibration Specification for Ultrasonic Flaw Detectors by Time-of-Flight Diffraction
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A59
Classification of International Standard 17.140
Word Count Estimation 23,241
Date of Issue 2/14/2014
Date of Implementation 5/14/2014
Quoted Standard JJF 1001-2011; JJF 1034-2005; GB 3102.7-1993; GB/T 3947-1996; GB/T 12604.1; GB/T 23902-2009; GB/T 27664.1-2011; NB/T 47013.10
Regulation (derived from) AQSIQ Announcement No. 17 of 2014
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This Standard specifies the use of ultrasonic time of flight diffraction method (time-of-flight diffraction, TOFD) ultrasonic flaw detector principle (hereinafter referred to as detectors) calibration.

JJF 1447-2014: Calibration Specification for Ultrasonic Flaw Detectors by Time-of-Flight Diffraction


---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.
Calibration Specification for Ultrasonic Flaw Detectors by Time-of-Flight Diffraction People's Republic of China National Metrology Technical Specifications Time of flight diffraction method ultrasonic flaw detector Calibration Specification Issued on. 2014-02-14 2014-05-14 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Time of flight diffraction method ultrasonic flaw detector Calibration Specification htDiffraction Focal point. the National Committee of the acoustic measurement technology Drafting units. China Institute of Metrology Feng Technology Co., Ltd. Beijing era Beijing Lu Zou City Exhibition Co., Ltd. China Special Equipment Inspection and Research Institute This specification metering commissioned National Technical Committee is responsible for interpreting acoustics Drafters of this specification. Edge Wen Ping (China Institute of Metrology) Yang Ping (China Institute of Metrology) Peng Xuelian (Beijing Times-Technology Co., Ltd.) Zhu Yan (China Institute of Metrology) Wang Chao (Beijing Lu Zou City Exhibition Co., Ltd.) Hu Bin (China Special Equipment Inspection and Research Institute)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 Terms (1) 3.1 Time of flight diffraction method (TOFD) (1) 3.2 TOFD image (1) 3.3 lateral wave (1) 3.4 bottom surface reflected wave (1) 3.5 Probe center spacing (PCS) (1) 3.6 Probe Delay (1) 3.7 defect depth (1) 3.8 bugs in their height (2) Defect length 3.9 (2) 3.10 blind (2) 4 Overview (2) 5 Metrological characteristics (3) 5.1 receiver bandwidth (3) 5.2 transmit pulse rise time (3) 5.3 on the surface of the blind (3) 5.4 defect depth, height and length measurement errors (3) 6 calibration conditions (3) Environmental conditions 6.1 (3) 6.2 standards and other measuring equipment (3) 7 calibration items and calibration methods (4) 7.1 calibration items (4) 7.2 Calibration method (4) 8 calibration results expression (9) 8.1 Calibration Data Processing (9) 8.2 calibration certificate (9) Measurement Uncertainty Evaluation 8.3 Calibration Results (9) 9 Recalibration interval (10) Appendix A recommended flaw detector calibration record (11) Appendix B recommended ultrasonic flaw detector calibration certificate page format (12) Appendix C typical reference block (13) Appendix D match test block ≤400mm thick steel probe recommended selecting (14) Appendix E time of flight diffraction method ultrasonic flaw detector flaw depth measurement error Uncertainty Evaluation Examples (15)

Introduction

This specification is based on JJF 1071-2010 "National Calibration Specifications writing rules," the preparation of requirements and coding format written. This specification GB/T 23902-2009 "Non-destructive testing - Ultrasonic examination Diffraction technical inspections and assessment Price method "in the equipment requirements of the more important indicators made the measurement performance requirement that the inclusion of metering performance deficiencies Depth, height defect, defect length and the like on the surface of several blind test content. And referring to "weld NDT - Super Health Laboratory - the use of time of flight diffraction technique (TOFD) of "(ISO 10863-Welding-Useoftime-of-flightdif- fractiontechnique (TOFD) fortestingofwelds) of the time of flight diffraction method flaw detector, probes, scanning The encoder apparatus and a comprehensive evaluation. This specification is the first release. Time of flight diffraction method ultrasonic flaw detector calibration specification

1 Scope

This standard applies to the use of ultrasonic time of flight diffraction method (time-of-flightdiffraction, TOFD) Principle Ultrasonic flaw detector (hereinafter referred to as detectors) calibration. 2. References This specification references the following documents. JJF 1001-2011 common measurement terms and definitions JJF 1034-2005 acoustic measurement terminology and definitions GB 3102.7-1993 Quantities and units of acoustics GB/T 3947-1996 Acoustics Terminology GB/T 12604.1 Terminology for nondestructive testing Ultrasonic testing GB/T 23902-2009 NDT testing and evaluation methods - Ultrasonic examination Diffraction GB/T 27664.1-2011 performance and test NDT ultrasonic testing equipment - Part 1. Apparatus NB/T 47013.10 pressure equipment Non-destructive testing - Part 10. Ultrasonic testing time of flight diffraction method 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

JJF 1001-2011 and JJF 1034-2005, GB/T 12604.1 and JB/T 4730.1 ~ 4730.6 Definition The following terms and definitions apply to this specification. 3.1 Time of flight diffraction method (TOFD) timeofflightdifraction, TOFD [NB/T 47013.10,3.2] Utilization Deficiency endpoints diffracted wave signal defect is discovered and an ultrasonic flaw detection method for determination of size. 3.2 TOFD image TOFDimage TOFD scanning data of two-dimensional display, A scan signal from the scan collected during continuous mosaic. 3.3 lateral wave lateralwave [NB/T 47013.10,3.5] Sonic the same group between two TOFD probes on a flat or curved surface of the shortest path propagation. 3.4 back reflection wave backwalecho [NB/T 47013.10,3.6] From the transmitting probe through the bottom surface of the reflector to the receiving ultrasonic probe. 3.5 Probe center spacing (PCS) probecenterseparation, PCS [NB/T 47013.10,3.7] Two from the probe point probe incident between a group. 3.6 Probe Delay probedelay Ultrasonic propagation time in the probe wedge. 3.7 defect depth flawdepth [NB/T 47013.10,3.9] End-to-surface distance scanning defect.

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