This standard contains test procedures for evaluating the behaviour of microduct cabling (microduct optical cable, fibre unit or hybrid cable etc.) when blown into a microduct or protected microduct . Two blowing track layouts are described: Method A consists of two mandrels and two long straight section in between (same curvature). Method B consists of 3 mandrels. The middle mandrel enforces the cable to experience both left and right hand bends, which is a feature of any realistic blowing route. In addition an optional procedure is described to check the capability of blowing out an installed cable.