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Nbm M M me M <br /> I <br /> Appt,ndix E <br /> ONSITE Environmental Laboratories, Inc Revision 0 <br /> Quality Assurance Plan February 15, 1906 <br /> Page 6 of b <br /> I <br /> Appendix E <br /> Table 2 Summary of Periodic Calibration Requirements <br /> Instrument Calibration Frequency Calibration Process Acceptance Lunits <br /> Analytical Balances Daily, with use Check with traceable Class S weight True value t 0 002 g <br /> Monthly Checi with full range of weights True value ± 0 002 g <br /> Annually External service and calibration <br /> Top Loading Scales Daily, with use Check with traceable Class S weight True value ± 0 1 g <br /> i <br /> Monthly Chick with full range of weights True value ± 0 1 g <br /> Annually External service and calibration <br /> Therrnornets-rs Annually Calibrate in constant temperature bath True value t 0 5 °C <br /> against NIST traceable therinomeier <br /> Pipettors Monthly Gravimetric check High volume(> 100 ILL) s <br /> 1 0% relative error and RSD <br /> I <br /> Low volume (<100 ItL) s <br /> 2 0 % relative error and RSD <br /> Word 6 0 loclappe dm <br />