Selected Answers

From Carl Havemann of www.corrosioneducation.co.za on July 18, 2011:
     A record of the coating t ...read more      A record of the coating thickness is necessary to verify conformance to the specification and must include: (i) Max, Min, Mean and Standard Deviation. Standard deviation is useful in providing data on thickness consistency during application. (ii) State the DFT measurement standard used ie SSPC-PA 2 (iii) State the calibration method ie "calibrated on smooth disc with no correction factor for blast profile" (iv) Record the blast profile data (v) State the DFT instrument used and include a copy of the Calibration Certificate.

From Shabbir Mansoori of National Contracting Co.(INTAP) on June 20, 2011:
     Checking and drafting of ...read more      Checking and drafting of dfts as per relavant standard, which prescribes minimum, maximum and average readings according to types of surfaces. This is strong evidence of applied coating/painting for QC records.

From jack wu of shanghai on June 20, 2011:
 Max Reading, Min Reading, Average Reading an ...read more  Max Reading, Min Reading, Average Reading and surface profile(correction factor)

From gijo dominic of national contracting company on June 19, 2011:
      Lowest, highes ...read more       Lowest, highest, and average values for dft, each square meter or piece. This dft needs to be inconformance with manufacturer's recommendations.  So this must be recorded for the future reference.