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2. Rinse the pH probe and aemperaturc probe with Monized water then place in the PH 7 solution, i 3. Adjust the meter for the appropriate t rat= then read the pH. 4. If required use the "calibrate" adjustment on the meter to correct the .instri=ent to read PH 7. 5. Riase the pH and temperature propes with deioaned .water and place in the pH IO solution (note: at Forward landfill er pH is usually above 7 therefore it is appropriate to use the Ph 10 standard. If the PH is below 7 thea the pH 4 standard should be used) 6. Use the "slope"adjustment to correct the meter to properlyread PHI 0- 7. Rep-cat steps 2 to 6 until the meter reads p .7 and 10 as closely as possible. The cafibration process will be recorded on a pH calibration log. Copies of calibration dogs for each Individual.inmstrurnent are kept is a binder.at a o$icc. The Fags arc reviewed periodically to assess 'whether the instrument-is.becoming ore diffcalt to calt-brate and therefore.-needs - adjustment by the manufacturer,.or if new probes are required- !CO_nduC*yitY Meter Conductivity measurtmcnt is subject to variations due to temperature and moment drift For this reason conductivity meters must be calibrated before and after sampling on each day and at - .least ranee more during the day_ To calibrate a coliductivitY meter the insuu ent reading is adjusted tea read contctly for solutions with a standard _ conductivity. Standard conductivity solutions arc mixed fish, according to Package instructions, for each =MPlk8 event 5 solutions for co 'vi O 100, 1000, or 1.0,000 umhoslliter are y.available. These standards arc purchased fivsh and discarded- after shelf life has aacphvcL Shelf lives vary dcpca(rmg on the brand of standards used. Ifpre�repared solution is used,the expiration'date of the solution will be noted on the calibration log. 23 849-Fa M3 I OR325 h-3I4,20 0 2000 K�s�da,tnc„ My