General Industry TermVerified
AARH meaning in oil and gas
AARH means Arithmetic Average Roughness Height. Measure of surface roughness related to RMS (Root Mean Square). Often used for flange face surface finish. Calculation of the Arithmetic Average Roughness Height involves…
Definition
Arithmetic Average Roughness Height
Measure of surface roughness related to RMS (Root Mean Square). Often used for flange face surface finish. Calculation of the Arithmetic Average Roughness Height involves measuring the distance of the peaks and valleys and performing an arithmetic average of the measurements.