JJF 1484-2014 "wet film thickness measurement gauge calibrating specification" for wet film thickness measurement gauge calibrating developed measurement technical specifications. Measurement range is applicable to wet film thickness measurement gauge (0~ 3000) μm. GB/T 13452.2-2008 "Determination of Paints and varnish film thickness" as the main reference standard. Wet film thickness measurement gauges are divided into Wet Film Comb and Thickness Wheel. Coating thickness obtained immediately after coating is measured. The Wet Film Comb is suitable for flat or slightly curved surfaces, while the Thickness Wheel is suitable for flat or evenly curved surfaces. The specification is based on the National Measurement calibrated code and common Measurement terms and definitions to ensure measurement accuracy and Reliability.