MS-QA_06-2019 rev5

MS-QA 2019 17 Companion Guidance Section D— Example QA Plan Manual Closing Advisory Evidence of Quality Control That Auditors Look For Field—Analytical Services (all device types individually accounted for): Continuous Monitors: [ ] Evidence of annual calibration for each device employed, including background; [ ] Evidence of duplicate or comparison measurements [ ] Evidence of tracking relative percent difference [ ] Evidence of control actions for maintenance and subsequent to indications of device failure or inaccuracy Electrets: [ ] Evidence of annual re-certification of reference electrets and calibration of reader(s). [ ] Evidence of duplicate or comparison measurements [ ] Evidence of tracking relative percent difference [ ] Evidence of measurements and/or correction for background gamma radiation [ ] Evidence of checking electret voltage stability on stored devices (e.g. monthly) [ ] Evidence of control actions for maintenance and subsequent to indications of device failure or inaccuracy. Field—Passive Measurement Services (all non-analytical device types individually accounted for): [ ] Written operating procedures for monitoring storage locations to ensure against the potential of introducing detector error such as can occur from high radon concentrations, high humidity or extreme temperatures. [ ] Written operating procedures for inventory control to include considerations for: maximum shelf-life allowances; first in is in first out rotation; order date, date of receipt and quantity [ ] Evidence of duplicate measurements and comparison measurements [ ] Evidence of tracking relative percent difference [ ] Evidence of measurements for background and unexpected influences (blanks) [ ] Evidence of exposures to known concentrations (spikes) [ ] Evidence of control actions subsequent to indications of device failure or inaccuracy.