{"product_id":"milwaukee-m10004b-ph-401-buffer-solution-sachets-box-25","title":"Milwaukee M10004B pH 4.01 Buffer Solution – 20 mL Sachets, Box of 25 | ±0.01 pH Accuracy","description":"\u003ch2\u003eMilwaukee M10004B pH 4.01 Buffer Solution – 20 mL Sachets, Box of 25\u003c\/h2\u003e\n\u003cp\u003eCalibrate with confidence using \u003cstrong\u003eMilwaukee M10004B\u003c\/strong\u003e — a certified, lab-grade \u003cstrong\u003epH 4.01 buffer solution\u003c\/strong\u003e packaged in convenient single-use 20 mL sachets. Engineered for pH meters, testers, and electrodes used in hydroponics, aquaculture, water treatment, food \u0026amp; beverage, pharmaceutical, and laboratory environments.\u003c\/p\u003e\n\u003cp\u003eEach sachet delivers \u003cstrong\u003e±0.01 pH certified accuracy\u003c\/strong\u003e, eliminating the guesswork and contamination risk of powder-mixed buffers. Simply open, insert your electrode, and calibrate — fresh, traceable solution every single time. With a \u003cstrong\u003e5-year shelf life\u003c\/strong\u003e, the M10004B is the smart choice for both high-frequency labs and infrequent field use.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Milwaukee M10004B?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e±0.01 pH Certified Accuracy:\u003c\/strong\u003e Meets international buffer standards — eliminates errors from powder mixing and delivers traceable, repeatable calibration results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-Use Sachet Packaging:\u003c\/strong\u003e Fresh, uncontaminated solution every use — no risk of expired, degraded, or cross-contaminated buffer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed Against Light \u0026amp; Air:\u003c\/strong\u003e Preserves solution integrity from production to point of use for maximum reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor-Coded for Easy Identification:\u003c\/strong\u003e Instantly distinguish pH 4.01 from pH 7.01 and 10.01 buffer solutions at a glance — no mislabeling risk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-Year Shelf Life:\u003c\/strong\u003e Long expiry for cost-effective stocking, bulk purchasing, and infrequent-use scenarios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField \u0026amp; Lab Ready:\u003c\/strong\u003e Compact sachets are ideal for on-the-spot calibration in greenhouses, field sites, labs, and production facilities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtends Electrode Life:\u003c\/strong\u003e Proper calibration with certified buffers protects your electrode investment and maintains long-term measurement accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25 Sachets Per Box:\u003c\/strong\u003e Generous supply for routine calibration schedules in high-frequency testing environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHydroponics \u0026amp; indoor growing nutrient management\u003c\/li\u003e\n\u003cli\u003eAquaculture \u0026amp; aquaponics water quality monitoring\u003c\/li\u003e\n\u003cli\u003eDrinking water \u0026amp; municipal water treatment\u003c\/li\u003e\n\u003cli\u003eFood \u0026amp; beverage production \u0026amp; quality control\u003c\/li\u003e\n\u003cli\u003ePharmaceutical \u0026amp; biotech manufacturing\u003c\/li\u003e\n\u003cli\u003eEnvironmental \u0026amp; wastewater testing\u003c\/li\u003e\n\u003cli\u003ePool, spa \u0026amp; recreational water management\u003c\/li\u003e\n\u003cli\u003eLaboratory research \u0026amp; educational institutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eOpen one M10004B sachet.\u003c\/li\u003e\n\u003cli\u003eInsert your pH electrode or tester into the sachet.\u003c\/li\u003e\n\u003cli\u003eGently stir and allow to equilibrate.\u003c\/li\u003e\n\u003cli\u003eCalibrate your meter to pH 4.01.\u003c\/li\u003e\n\u003cli\u003eRinse electrode with rinse solution (MA10000) before moving to the next calibration point.\u003c\/li\u003e\n\u003cli\u003eDiscard sachet after use — never reuse.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuffer pH Value:\u003c\/strong\u003e 4.01\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e ±0.01 pH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume per Sachet:\u003c\/strong\u003e 20 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 25 sachets per box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShelf Life:\u003c\/strong\u003e 5 years\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Single-use, light \u0026amp; air-sealed sachets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible With:\u003c\/strong\u003e Milwaukee pH meters, testers \u0026amp; standard pH electrodes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e M10004B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcode (UPC):\u003c\/strong\u003e 810666009718\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Romania (EU-manufactured)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003ePro tip: For a complete two-point calibration, pair M10004B (pH 4.01) with Milwaukee M10007B (pH 7.01) buffer sachets — the gold standard for maximum pH meter accuracy. Add Milwaukee MA10000 rinse solution to prevent cross-contamination between calibration points.\u003c\/em\u003e\u003c\/p\u003e","brand":"MILWAUKEE INSTRUMENTS","offers":[{"title":"Default Title","offer_id":32300900155479,"sku":"M10004B","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/M10004__18257.1608148172.jpg?v=1709252203","url":"https:\/\/getultimatenow.com\/products\/milwaukee-m10004b-ph-401-buffer-solution-sachets-box-25","provider":"Get Ultimate Now ","version":"1.0","type":"link"}