Laserfiche WebLink
�E <br /> ATC Associates Inc. <br /> Quality Assurance/Quality Control Plan k <br /> Revised March 1998 <br /> Organic Vapors <br /> Photoionization Detector (PID). Calibration: daily field calibration using a isobutylene <br /> standard as per manufacturers instructions. <br /> g <br /> I� <br /> Groundwater 11H Measurement <br /> IY <br /> Digital pH meter. Calibration: standard pH solutions of 4, 7, and 10 will be utilized for daily <br /> field calibration according to manufacturers instructions. <br /> Electrical Conductivity <br /> I� f <br /> Electrical Conductivitymeter. Calibration: facto -calibrated annuall and periodically <br /> rY Y P Y <br /> calibrated against laboratory prepared standard calibration solution. <br /> Water Temperature <br /> Mercury or digital thermometers. Calibration: factory calibrated once. ' <br /> Combustible Gas/Oxygen <br /> Combustible gas/oxygen meter. Calibration: factory calibrated,afield calibrated monthly, zeroed <br /> li <br /> daily according to manufacturers instructions. <br /> Miscellaneous Measuring Devices <br /> Calibration procedures for any other measuring device used will be documented at the request <br /> of the regulatory authority. <br /> E <br />``E E <br /> W:lAdminlShellslQAQC-98.DOC <br /> E <br />