“Preventive maintenance check” means a scheduled or routine maintenance performed on the approved instrument to ensure its continued accuracy and precision.

Source. #8064, INTERIM, eff 4-1-04, EXPIRES: 9-28-04 (See Revision Note at Chapter Heading for Saf-C 6300); ss by #8114, eff 7-14-04; ss by #9683, eff 3-23-10 (from Saf-C 6301.31); renumbered by #12064 (formerly Saf-C 6301.26)