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TB/T 2340-2012 PDF in English


TB/T 2340-2012 (TB/T2340-2012, TBT 2340-2012, TBT2340-2012)
Standard IDContents [version]USDSTEP2[PDF] delivered inName of Chinese StandardStatus
TB/T 2340-2012English150 Add to Cart 0-9 seconds. Auto-delivery. Ultrasonic testing detector for rail Valid
TB/T 2340-2000English519 Add to Cart 4 days (A multi-channel ultrasonic flaw detector display rail technical conditions) Obsolete
TB/T 2340-1993EnglishRFQ ASK 3 days (A multi-channel ultrasonic flaw detector display rail technical conditions) Obsolete
Standards related to (historical): TB/T 2340-2012
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TB/T 2340-2012: PDF in English (TBT 2340-2012)

TB/T 2340-2012 TB RAILWAYS INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 45.120 S 23 Replacing TB/T 2340-2000, TB/T 2634-1995 Ultrasonic testing detector for rail ISSUED ON. MARCH 01, 2012 IMPLEMENTED ON. JULY 01, 2012 Issued by. Ministry of Railways of the People's Republic of China Table of Contents 1 Scope ... 6  2 Normative references ... 6  3 Terms and definitions ... 7  4 Technical requirements ... 10  4.1 General rules ... 10  4.2 Probe ... 11  4.2.1 General rules for probes ... 11  4.2.2 Probe performance ... 12  4.2.3 Operating ambient temperature ... 13  4.3 Instruments ... 13  4.3.1 Pulse repetition frequency ... 13  4.3.2 Attenuator ... 14  4.3.3 Dynamic range ... 14  4.3.4 Amplifier frequency response ... 14  4.3.5 Error of time base (horizontal) linearity ... 14  4.3.6 Linearity of vertical display error ... 14  4.3.7 Blocking range ... 14  4.3.8 The effects of inhibition state on measuring results ... 14  4.3.9 The effects of operation voltage on the wave height of detector echo and the sensitivity of detection (alarm) ... 14  4.3.10 Digital detector... 14  4.4 Combination property ... 15  4.4.1 Sensitivity margin ... 15  4.4.2 Distance-amplitude characteristic ... 15  4.4.3 Signal-to-noise ratio ... 15  4.4.4 Defect detection capability ... 16  4.5 Electromagnetic compatibility ... 16  4.6 Operation ambient temperature ... 16  4.7 Temperature stability ... 16  4.8 Vibration performance ... 16  4.9 Drop performance ... 16  4.10 Sealing performance ... 16  4.11 Safety performance ... 17  5 Inspection methods ... 17  5.1 Inspection conditions ... 17  5.2 Probes ... 17  5.2.1 Physical properties ... 17  5.2.2 Echo frequency ... 17  5.2.3 Relative error of echo frequency ... 18  5.2.4 Refraction angle error ... 18  5.2.5 Acoustic-axis offset angle ... 18  5.2.6 Relative deviation of combined probe ... 19  5.2.7 Attenuation value of protective boot (film) ... 19  5.2.8 Resolution ... 19  5.2.9 Sensitivity margin ... 20  5.2.10 Width of acoustic-beam N ... 21  5.2.11 Wedge echo amplitude ∆S ... 21  5.2.12 Temperature applicability of working environment ... 22  5.3 Instrument ... 22  5.3.1 Pulse repetition frequency ... 22  5.3.2 Attenuator ... 22  5.3.3 Dynamic range ... 22  5.3.4 Amplifier frequency response ... 22  5.3.5 Time base (horizontal) linearity error ... 24  5.3.6 Vertical linearity error ... 25  5.3.7 Blocking range ... 25  5.3.8 The influence of inhibitory state on the measurement results ... 25  5.3.9 The influence of working voltage on the echo height of flaw-detector and the flaw-detection (alarm) sensitivity ... 26  5.3.10 Digital flaw-detector ... 26  5.4 Comprehensive performance ... 28  5.4.1 Sensitivity margin ... 28  5.4.2 Distance amplitude characteristic ... 29  5.4.3 Signal-to-noise ratio ... 29  5.4.4 Flaw-detection capability ... 29  5.5 Electromagnetic compatibility ... 30  5.6 Ambient temperature test ... 30  5.7 Temperature stability ... 30  5.8 Vibration performance ... 30  5.9 Drop performance ... 31  5.10 Sealing performance ... 31  5.11 Safety performance ... 31  6 Inspection rules ... 31  7 Mark, packaging, transportation, storage and accompanying documents ... 33  7.1 Mark ... 33  7.2 Packaging ... 33  7.3 Transportation ... 33  7.4 Storage ... 33  7.5 Accompanying documents ... 33  Annex A ... ......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.