EBay Untitled Document More than 200.000 Satisfied customers - Quick delivery from our warehouse - More than 7.000 References in stock - Satisfied or Refunded pH Buffer / Calibration Solution for Meter / Tester / Electrode (pH 9.182) All pH electrodes require calibration from time to time. A two point calibration characterizes an electrode with a specific pH meter. Once an electrode is characterized, the electrode/meter pair can be used to determine the pH of a solution. Please follow the step-by-step procedure outlined below to perform a two point calibration. A 6.864 PH buffer solution and a 4.003 PH buffer solution are required. 1) Rinse the electrode thoroughly with D. I. Water to remove all traces of storage solution, process medium, or previous test solution. Thoroughly rinse the electrode after each buffer test to prevent carry over contamination of the pH buffer solutions. Gently blot the electrode on a soft tissue to remove the excess rinse water. Do not rub the bulb since it can cause a static charge build-up. 2) Insert the electrode and the A. T. C. (Automatic temperature compensator) in 9.182 PH buffer solution. Allow 30 seconds for the electrode/A. T. C. To reach thermal equilibrium with the buffer solution. Adjust the pH meter with the standardize/zero control for a pH indication equal to 6.864. Note: If the meter does not have an A. T. C., Place a thermometer along with the electrode in the 9.182 PH buffer solution. Allow 30 seconds for the pair to reach thermal equilibrium with the buffer. Adjust the temperature dial on the meter to correspond with the thermometer reading. Then adjust the pH meter with the standardize/zero control for a pH indication equal to 9.182 Notes: a) Always use fresh pH buffer solutions for the most accurate results. B) When a pH electrode is calibrated with an autocalibration meter, consult the meter’s operation manual for the required calibration procedure. Specifications - Standard buffer solutions for pH-meter calibration - pH 9.182 Shipment contents - pH Buffer Solution pH 9.182 Delivery Save on shipping costs by combining multiple articles You can save on shipping costs by combining multiple items in one order. All items are combined to offer the lowest possible rates for the shipment according to their combined weight and dimensions Receiving your order safely and against your signature To ensure that shipments arrive safely, we pack them carefully and neutrally. Additionally, all our shipments are shipped with tracking number and delivered personally against the signature of the recipient. Remember to inspect your package upon arrival. In case you notice any damage to the packaging or package, please document them in writing on the delivery slip and inform us immediately by email so that we can find a solution quickly. It is not possible to send orders to P. O. Boxes Please note that any costs for customs, administration and tax at destination are not shown and are responsibility of the recipient and to be paid to the carrier upon delivery. We do not mark any orders as "gifts" or with lower prices than those invoiced / paid; these actions are prohibited under national and international law.