N.H. Code Admin. R. Env-A 1202.65
“Extreme high-gloss coating” means a coating which, when tested by ASTM standard D523-08, shows a reflectance of 90 or more on a 60° meter.
Source. (See Revision Note at chapter heading for Env-A 1200) #9933, eff 6-1-11; ss by #12899, eff 10-17-19