Milwaukee MI526-25 Free Chlorine Powder Reagents – 25 DPD Tests for MW10 Photometer
Keep your water safe and compliant with the Milwaukee MI526-25 — a professional-grade free chlorine powder reagent refill pack designed exclusively for the Milwaukee MW10 Free Chlorine Photometer. Each pack contains 25 pre-measured DPD powder packets that deliver fast, accurate free chlorine readings from 0.00 to 5.00 mg/L (ppm) — no measuring, no mess, no guesswork.
Whether 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.
Key Features
- ✅ 25 Pre-Measured Tests: Each packet is precisely dosed — just tear, pour, and test
- ✅ DPD Powder Method: Industry-standard N,N-diethyl-p-phenylenediamine (DPD) chemistry for accurate free chlorine measurement
- ✅ Range: 0.00 to 5.00 mg/L (ppm) — covers pools, spas, drinking water, and wastewater requirements
- ✅ Long Shelf Life: Individually sealed powder packets maintain reagent stability and freshness far longer than liquid reagents
- ✅ Portable & Field-Ready: Compact packets are ideal for on-site and field testing
- ✅ Made in USA: Manufactured to strict quality standards for consistent, repeatable results
- ✅ Compatible With: Milwaukee MW10 Free Chlorine Photometer (sold separately)
Applications
- 🏊 Swimming Pools: Maintain 1–3 ppm free chlorine for residential and commercial pool safety
- 🛁 Spas & Hot Tubs: Verify 3–5 ppm disinfection levels to prevent waterborne illness
- 🚰 Drinking Water: Monitor chlorine residual for EPA compliance and safe distribution
- 🏭 Wastewater Treatment: Confirm chlorine residual before discharge
- 🔬 Environmental & Lab Testing: Accurate free chlorine analysis for research and compliance
- 🐟 Aquaculture: Monitor water disinfection in fish and aquatic farming environments
Why Free Chlorine Testing Matters
Free chlorine is the active 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.
How to Use
- Fill the MW10 photometer cuvette with 10 mL of your water sample to the fill line
- Tear open one MI526-25 powder reagent packet
- Pour the entire contents into the cuvette
- Cap and shake vigorously until the powder is fully dissolved
- Wait for color development (per MW10 instructions)
- Insert the cuvette into the MW10 Photometer and read the free chlorine concentration
Technical Specifications
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Product Code: MI526-25
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Test Parameter: Free Chlorine (Cl₂)
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Reagent Method: DPD (N,N-diethyl-p-phenylenediamine) Powder
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Measurement Range: 0.00 to 5.00 mg/L (ppm)
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Number of Tests: 25
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Compatible Instrument: Milwaukee MW10 Free Chlorine Photometer
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Packaging: 25 individually sealed pre-measured powder packets
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Weight: 5 oz
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Country of Origin: USA
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SKU: MI526-25
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Barcode: 810666001000
Storage & Handling
Store 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.
⚠️ 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.
