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2. Rinse the pH probe and -,eMPCMtUrC Probe,with dcionized water then place in the <br /> solution, pH 7 <br /> r <br /> 3. Adjust the meter for the appropriate teMPeMt=then read the pH. <br /> 4- If required use the "calibrate" adjustment on the meter to correct the ins eat to read <br /> PH 7_ <br /> $- Rinse the pH and tem Probes with dei0niZed .water and place in the pH 10 <br /> solution {note. at Forward d ter PH is USUAfY above 7 therefore it is <br /> appropriate to use the Ph 10 standard. If the PH is below 7 then the pH 4 stands should <br /> be used) <br /> 6. Use the "slope"adjustment to correct the meter to properly rid pH 10. <br /> ,- Repeat steps 2 to 6 until the meter reads PHI and 10 as closely as possible_ <br /> The calibration process will be recorded on a pH calibradon log. Copiesof calibration logs for <br /> each ividu2i <br /> -ifistrument are kept in a binder.at the officc. The logs are reviewed periodically <br /> -: <br /> to assess whether the insu=ent•is.becoming o cult to calibrate and therefore.-needs - <br /> adjustment by the manufact w=,.or if new probes are required- <br /> COndUCftVItJr tic em is subject to vanations due to temperaam and ' eat drift. l:othis r <br /> reason conductivity teeters must be tahibrated before and afi=sampling onach day and at <br /> I once more during the day_ TO C21ibraft a conductivity meter the hntrumcntreading is <br /> con=y for solutions with s standaid conductivity. <br /> Stuxiard conductivity solutions'sm xnbced A=k accorcHng to pwjmgc <br /> instructions, for each <br /> wmpling event Standard sol ity of 100, 10M' , or l -0,000 umhdsffitm-pard <br /> y avwhble. 'These ed aler shelf life has <br /> Shelf.lives vary depeadmig on the brandof <br /> If solution is <br /> the expiration'date of the so on WM be noted on dw calibration, <br /> log. <br /> 23-M849401123 I OA-3U04 <br /> a <br /> tae, 1�'Z <br />