Castrol Strips

Castrol Strips, or Flexible Magnetic Flux Indicators, are specifically addressed in the BS 6072 Specification, Castrol Strips are used to check if an induced field will detect a certain orientation (direction) of defect, and to determine the sensitivity or size of a detectable defect.

Castrol Strips are more robust than QQI's, as they are over 3 times thicker. Therefore, Castrol Strips are very suitable for use in the field or factory floor, by a Technician to check his defect sensitivity.  While Castrol Strips can be used for procedure development they are far more suited to repeated use.  Furthermore, Type G Castrol Strips are the best suited for field operations, while Type A are more similar to QQI's with the disadvantage of not being as flexible.