Chapter Sixteen - Definitions Flashcards
1
Q
What is DFT gauge type one?
A
Type one instruments are described as magnetic pull off gauges the force required to pull a magnet from the fairest surface is used to determine the film thickness.
2
Q
What is DFT gauge type two?
A
Type two instruments are electronic gauges they use electronic circuitry to convert a reference signal into coating thicknesses.
3
Q
What is wet film comb?
A
Instrument used to measure film thickness. The comb is pushed into the film. Upon removal, the thickness measure is shown on the gauge.
4
Q
What is BMR (base metal readings)?
A
To adjust for surface roughness, measured the blast profile of the steel to be painted at a number of spots to obtain a representative average value. This average value is the base metal reading the BMR.
