Milwaukee MA9009 pH 9.18 Calibration Buffer Solution — 230 mL, Lab Grade ±0.01 pH Accuracy

Milwaukee MA9009 pH 9.18 Calibration Buffer Solution — 230 mL The Milwaukee MA9009 is a lab-grade pH 9.18 calibration buffer solution certified to ±0.01 pH accuracy — eliminating the inaccuracies and inconsistencies associated with manually mixed buffer solutions. Designed for use with Milwaukee pH meters, testers, and electrodes, the MA9009 ensures reliable, repeatable pH calibration that extends electrode life and maintains measurement accuracy. Packaged in a 230 mL airtight, tamper-proof, light-sealed bottle for maximum shelf stability and solution integrity. Why Regular pH Calibration Matters pH electrodes drift over time due to reference junction contamination, membrane aging, and temperature cycling. Regular calibration — at minimum once per month, or any time readings become suspect — corrects this drift and ensures your pH meter is delivering accurate results. Using a certified buffer solution like the MA9009 removes the largest variable in the calibration process: reagent accuracy. Key Features Lab-grade pH 9.18 buffer — certified to ±0.01 pH accuracy at 25°C Pre-made, ready-to-use — no mixing, no preparation, no concentration errors Airtight, tamper-proof cap — sealed against light and air for maximum shelf stability Fast calibration — open, pour into a beaker, insert electrode, calibrate Extends electrode life — proper calibration with quality buffer reduces electrode stress and wear 230 mL bottle — sufficient volume for multiple calibration sessions Designed for use with Milwaukee pH meters, testers, and electrodes How to Use Open the MA9009 bottle and pour a sufficient amount of buffer solution into a clean beaker or container. Insert your Milwaukee pH tester or electrode into the buffer solution. Follow your meter's calibration procedure to set the pH 9.18 calibration point. Rinse the electrode with distilled water before returning to sample measurement. Discard used buffer — do not return used solution to the bottle. Specifications pH Value: 9.18 @ 25°C Accuracy: ±0.01 pH Volume: 230 mL Packaging: Airtight, tamper-proof, light-sealed bottle Certificate of Analysis: No Country of Origin: Romania SKU: MA9009 Applications pH meter and electrode calibration in laboratories Aquaculture and aquarium pH monitoring calibration Hydroponics and nutrient solution pH calibration Wastewater treatment pH instrument calibration Food and beverage quality control pH calibration Environmental water quality testing calibration Note: For best results, calibrate pH meters with at least two buffer points. Pair with Milwaukee MA9007 (pH 7.01) or MA9004 (pH 4.01) buffer solutions for multi-point calibration.