Laserfiche WebLink
2. Rinse the pH probe and temperature probe with ddonized water then place in the pfi 7 <br />Solution. <br />3. Adjust the meter for the appropriate temperature then read the pH. <br />4. If required use the 'calibrate" adjustment on the meter to correct the iastr=ent to read <br />pH 7. <br />5. Rinse the PH mW temperature probes with d-tionized water and place in the P14 10 <br />solution (rwte: at forward landfill groundwater pH is usualfy above 7 therefore it is <br />appropriate to use the ph 10 standard. If the PH is below 7 dxn the pH 4 standard should <br />be use <br />6. Use the "slope 4ustraent to correct the meter to pmpaly read pH 10. <br />7. Repeat steps 2 to 6 until the meter reads pH.7 and 10 as closely as possible <br />The cah-bration. Process will be recorded on a pH calibration � Copies of c-alibmdon logs for <br />each individual instrment are kept ina. binder a€ tae office. The logs are reviewed periodically <br />to assess AfittlIer the instr=ellt - is becoming -mcg e difficult to =13-bratc and therefore. needs <br />adjustmeat by the manufactm=, or ifnew probes are required. <br />Conductivity measm=ent is suj4cct to rariations due to tempaatze, and ktstr=ent d p <br />ri , For <br />d3is vz=n eonductmty inttarsmust be c2hbrAte-d bef0m mW after S*aImgon ezzh day and at <br />l,1*Mt Once more- dm* the day- TO c2hibraw a cOUduCtMtf' meter the instr=ent reading is <br />14usted to read con=dy for solutio= with a Siandair d conductivity, <br />SUAdard conductivity solutions am mbced fi,.-sb, according to pb4mge instructions, for each <br />sampling nt St=d=d wtudons for con&xdvity of 100. 1000, or 10,000 umhosIliter am' <br />commercially avwiable- to standards = pmvh=d fi=h and discuded OL -r shelf life bas <br />OCPkVd- Shelf lives wry depeading on the brand of sqan&rdd. If prt-prepared sohition is <br />useE, tbe: expiration' date ale solution wW be to on the calibrzUon log. <br />23-493949-FOIU3 tO8325 h July l4, 2000 <br />