{"product_id":"milwaukee-ma9009-ph-9-18-calibration-buffer-solution-230ml","title":"Milwaukee MA9009 pH 9.18 Calibration Buffer Solution — 230 mL, Lab Grade ±0.01 pH Accuracy","description":"\u003ch2\u003eMilwaukee MA9009 pH 9.18 Calibration Buffer Solution — 230 mL\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMilwaukee MA9009\u003c\/strong\u003e is a \u003cstrong\u003elab-grade pH 9.18 calibration buffer solution\u003c\/strong\u003e certified to \u003cstrong\u003e±0.01 pH accuracy\u003c\/strong\u003e — 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.\u003c\/p\u003e\n\u003cp\u003ePackaged in a \u003cstrong\u003e230 mL airtight, tamper-proof, light-sealed bottle\u003c\/strong\u003e for maximum shelf stability and solution integrity.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Regular pH Calibration Matters\u003c\/h2\u003e\n\u003cp\u003epH 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.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab-grade pH 9.18 buffer\u003c\/strong\u003e — certified to ±0.01 pH accuracy at 25°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-made, ready-to-use\u003c\/strong\u003e — no mixing, no preparation, no concentration errors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAirtight, tamper-proof cap\u003c\/strong\u003e — sealed against light and air for maximum shelf stability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast calibration\u003c\/strong\u003e — open, pour into a beaker, insert electrode, calibrate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtends electrode life\u003c\/strong\u003e — proper calibration with quality buffer reduces electrode stress and wear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e230 mL bottle\u003c\/strong\u003e — sufficient volume for multiple calibration sessions\u003c\/li\u003e\n\u003cli\u003eDesigned for use with Milwaukee pH meters, testers, and electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eOpen the MA9009 bottle and pour a sufficient amount of buffer solution into a clean beaker or container.\u003c\/li\u003e\n\u003cli\u003eInsert your Milwaukee pH tester or electrode into the buffer solution.\u003c\/li\u003e\n\u003cli\u003eFollow your meter's calibration procedure to set the pH 9.18 calibration point.\u003c\/li\u003e\n\u003cli\u003eRinse the electrode with distilled water before returning to sample measurement.\u003c\/li\u003e\n\u003cli\u003eDiscard used buffer — do not return used solution to the bottle.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003epH Value:\u003c\/strong\u003e 9.18 @ 25°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e ±0.01 pH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e 230 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Airtight, tamper-proof, light-sealed bottle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertificate of Analysis:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Romania\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e MA9009\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003epH meter and electrode calibration in laboratories\u003c\/li\u003e\n\u003cli\u003eAquaculture and aquarium pH monitoring calibration\u003c\/li\u003e\n\u003cli\u003eHydroponics and nutrient solution pH calibration\u003c\/li\u003e\n\u003cli\u003eWastewater treatment pH instrument calibration\u003c\/li\u003e\n\u003cli\u003eFood and beverage quality control pH calibration\u003c\/li\u003e\n\u003cli\u003eEnvironmental water quality testing calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: 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.\u003c\/em\u003e\u003c\/p\u003e","brand":"MILWAUKEE INSTRUMENTS","offers":[{"title":"Default Title","offer_id":43043620454487,"sku":"MA9009","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/MA9009__65143.jpg?v=1778361740","url":"https:\/\/getultimatenow.com\/products\/milwaukee-ma9009-ph-9-18-calibration-buffer-solution-230ml","provider":"Get Ultimate Now ","version":"1.0","type":"link"}