Remote field testing (RFT) is an electromagnetic method of non-destructive testing used by AKMEC for the detection and sizing of wall thinning caused by corrosion, erosion, wear, pitting and baffle cuts in ferromagnetic tubes of boilers, feed water heaters, air coolers, and carbon steel heat exchangers.
Remote field eddy current testing (RFET) and near field testing (NFT) are used in combination or individually depending upon the capability of testing machine.