Arrangement of Type 'B' or 'B1' Anchor Insulator Under 100 or 106lb Steel Conduct or Rail Supported on Type 'B', 'BK' or 120 Insulators and Timber Sleepers
Work Instructions for Ultrasonic Rail Testing: Ultrasonic Testing of Rail Using a Roller Search Unit Including Identification & Sizing of 37 deg/40 deg Suspects Reported by the UTU