supply of engineering item, digital ultrasonic double rail tester with 9 probes on each rail and minimum two base lines coloured signals and real a-scan pulse echo with continuous recording of b-scan storage of each probe alongwith data setups. with standard and following optional accessories ( 1 ) standard rail test piece with simulated defects of sensitivity setting for 70 degree., ( 2 ) mhz ( centre, gauge face and non-gauge face ) probes including holder = 02 nos 2. iiw block ( as per is: 4904 ) = 01 no, ( 3 ) step gauge of 25 mm width in steps of 1mm ( covering 2mm to10 mm ) = 01 no , ( 4 ) 0 degree 4mhz double crystal probe=5 nos. , ( 5 ) 70 degree ( f&b ) probe 2 mhz single crystal=8 nos. , ( 6 ) 37 degree ( f&b ) probe 2 mhz single crystal=4 nos. , ( 7 ) 45 degree 2 mhz single crystal probe=4 nos , ( 8 ) 70 degree 2mhz single crystal probe= 2 nos. , as per rdso specification rdso / m&c / ndt / 130 / 2007 ( b-scan ) rev-iv, august 2021 version no. 5.0 effective date: 31.12.2022 [ warranty period: 30 months after the date of delivery ]