{"product_id":"milwaukee-ma9004-ph-4-01-calibration-solution-230-ml","title":"Milwaukee MA9004 pH 4.01 Calibration Solution | 230 mL","description":"\u003ch2\u003eLab-grade pH 4.01 buffer for accurate meter calibration\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMilwaukee MA9004\u003c\/strong\u003e is a ready-to-use pH 4.01 calibration solution for pH meters and testers. The 230 mL bottle gives brewers, winemakers, meadmakers and other makers a convenient supply of acidic buffer for routine two-point calibration.\u003c\/p\u003e\n\u003cp\u003eThe solution is certified to the pH 4.01 standard with an accuracy of \u003cstrong\u003e±0.01 pH at 25°C\u003c\/strong\u003e. Using a prepared buffer avoids the concentration errors that can occur when powdered buffer is mixed with an imprecise volume of water.\u003c\/p\u003e\n\u003ch3\u003eProduct details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuffer value:\u003c\/strong\u003e pH 4.01 at 25°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy standard:\u003c\/strong\u003e ±0.01 pH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBottle size:\u003c\/strong\u003e 230 mL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMilwaukee model:\u003c\/strong\u003e MA9004\u003c\/li\u003e\n  \u003cli\u003eLight-resistant bottle with an airtight, tamper-evident cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to use it\u003c\/h3\u003e\n\u003cp\u003ePour only the amount needed into a clean calibration vessel. Calibrate according to your meter's instructions, then discard the used portion. Do not return used solution to the bottle, because that can contaminate the remaining buffer. For a standard acidic-range two-point calibration, use pH 7.01 first and then pH 4.01.\u003c\/p\u003e\n\u003cp\u003ePair it with \u003ca href=\"\/products\/milwaukee-ma9007-ph-7-01-calibration-solution-230-ml\"\u003eMilwaukee MA9007 pH 7.01 calibration solution\u003c\/a\u003e. For occasional calibration without opening a bottle, choose the \u003ca href=\"\/products\/milwaukee-ph-calibration-sachet-pair-4-01-7-01\"\u003esingle-use 4.01 and 7.01 sachet pair\u003c\/a\u003e.\u003c\/p\u003e","brand":"Milwaukee Instruments","offers":[{"title":"Default Title","offer_id":67736690295062,"sku":"milwaukee-ma9004-230ml","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0814\/4807\/5542\/files\/MA9004__40145.1609437541.jpg?v=1792106158","url":"https:\/\/socalbrewingsupply.com\/products\/milwaukee-ma9004-ph-4-01-calibration-solution-230-ml","provider":"SoCal Brewing Supply","version":"1.0","type":"link"}