{"product_id":"milwaukee-mi526-25-free-chlorine-powder-reagents-25-tests-mw10-photometer","title":"Milwaukee MI526-25 Free Chlorine Powder Reagents – 25 DPD Tests for MW10 Photometer | Pool, Spa \u0026 Drinking Water","description":"\u003ch2\u003eMilwaukee MI526-25 Free Chlorine Powder Reagents – 25 DPD Tests for MW10 Photometer\u003c\/h2\u003e\n\u003cp\u003eKeep your water safe and compliant with the \u003cstrong\u003eMilwaukee MI526-25\u003c\/strong\u003e — a professional-grade free chlorine powder reagent refill pack designed exclusively for the \u003cstrong\u003eMilwaukee MW10 Free Chlorine Photometer\u003c\/strong\u003e. Each pack contains \u003cstrong\u003e25 pre-measured DPD powder packets\u003c\/strong\u003e that deliver fast, accurate free chlorine readings from \u003cstrong\u003e0.00 to 5.00 mg\/L (ppm)\u003c\/strong\u003e — no measuring, no mess, no guesswork.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're a pool service professional, water treatment operator, environmental consultant, or lab technician, the MI526-25 gives you the reagent reliability you need to meet health, safety, and regulatory standards every time.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003e25 Pre-Measured Tests:\u003c\/strong\u003e Each packet is precisely dosed — just tear, pour, and test\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eDPD Powder Method:\u003c\/strong\u003e Industry-standard N,N-diethyl-p-phenylenediamine (DPD) chemistry for accurate free chlorine measurement\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eRange:\u003c\/strong\u003e 0.00 to 5.00 mg\/L (ppm) — covers pools, spas, drinking water, and wastewater requirements\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLong Shelf Life:\u003c\/strong\u003e Individually sealed powder packets maintain reagent stability and freshness far longer than liquid reagents\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003ePortable \u0026amp; Field-Ready:\u003c\/strong\u003e Compact packets are ideal for on-site and field testing\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eMade in USA:\u003c\/strong\u003e Manufactured to strict quality standards for consistent, repeatable results\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCompatible With:\u003c\/strong\u003e Milwaukee MW10 Free Chlorine Photometer (sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e🏊 \u003cstrong\u003eSwimming Pools:\u003c\/strong\u003e Maintain 1–3 ppm free chlorine for residential and commercial pool safety\u003c\/li\u003e\n\u003cli\u003e🛁 \u003cstrong\u003eSpas \u0026amp; Hot Tubs:\u003c\/strong\u003e Verify 3–5 ppm disinfection levels to prevent waterborne illness\u003c\/li\u003e\n\u003cli\u003e🚰 \u003cstrong\u003eDrinking Water:\u003c\/strong\u003e Monitor chlorine residual for EPA compliance and safe distribution\u003c\/li\u003e\n\u003cli\u003e🏭 \u003cstrong\u003eWastewater Treatment:\u003c\/strong\u003e Confirm chlorine residual before discharge\u003c\/li\u003e\n\u003cli\u003e🔬 \u003cstrong\u003eEnvironmental \u0026amp; Lab Testing:\u003c\/strong\u003e Accurate free chlorine analysis for research and compliance\u003c\/li\u003e\n\u003cli\u003e🐟 \u003cstrong\u003eAquaculture:\u003c\/strong\u003e Monitor water disinfection in fish and aquatic farming environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Free Chlorine Testing Matters\u003c\/h2\u003e\n\u003cp\u003eFree chlorine is the \u003cem\u003eactive\u003c\/em\u003e form of chlorine that actually disinfects — unlike combined chlorine (chloramines), which is spent and ineffective. Accurate free chlorine monitoring is essential for preventing algae growth, eliminating pathogens, and meeting EPA and health department regulations. The MI526-25 uses the DPD method, the gold standard for free chlorine measurement worldwide.\u003c\/p\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eFill the MW10 photometer cuvette with 10 mL of your water sample to the fill line\u003c\/li\u003e\n\u003cli\u003eTear open one MI526-25 powder reagent packet\u003c\/li\u003e\n\u003cli\u003ePour the entire contents into the cuvette\u003c\/li\u003e\n\u003cli\u003eCap and shake vigorously until the powder is fully dissolved\u003c\/li\u003e\n\u003cli\u003eWait for color development (per MW10 instructions)\u003c\/li\u003e\n\u003cli\u003eInsert the cuvette into the MW10 Photometer and read the free chlorine concentration\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Code:\u003c\/strong\u003e MI526-25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Parameter:\u003c\/strong\u003e Free Chlorine (Cl₂)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReagent Method:\u003c\/strong\u003e DPD (N,N-diethyl-p-phenylenediamine) Powder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Range:\u003c\/strong\u003e 0.00 to 5.00 mg\/L (ppm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Tests:\u003c\/strong\u003e 25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Instrument:\u003c\/strong\u003e Milwaukee MW10 Free Chlorine Photometer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e 25 individually sealed pre-measured powder packets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 5 oz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e MI526-25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcode:\u003c\/strong\u003e 810666001000\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cp\u003eStore in a cool, dry place away from direct sunlight and moisture. Keep packets sealed until ready to use. Do not use damaged or expired packets. Follow all safety precautions on product labeling. Powder reagents offer superior stability compared to liquid reagents when stored properly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e⚠️ Milwaukee MW10 Free Chlorine Photometer sold separately. Reagents are consumable and must be replaced after use. For best results, use fresh reagents and follow all testing procedures carefully.\u003c\/em\u003e\u003c\/p\u003e","brand":"MILWAUKEE INSTRUMENTS","offers":[{"title":"Default Title","offer_id":40353231372375,"sku":"MI526-25","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/MI526.png?v=1700245958","url":"https:\/\/getultimatenow.com\/products\/milwaukee-mi526-25-free-chlorine-powder-reagents-25-tests-mw10-photometer","provider":"Get Ultimate Now ","version":"1.0","type":"link"}