--- product_id: 18712651 title: "- DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 100, Range from 0.02-2.00 mg/L Cl₂, USEPA Accepted Method 8021, Drinking Water and Wastewater Analysis, for Use with Colorimeter, 2105569" brand: "hach" price: "€ 61.85" currency: EUR in_stock: true category: "Hach" url: https://www.desertcart.sk/products/18712651-dpd-free-chlorine-reagent-powder-pillows-10-ml-pack-100 store_origin: SK region: Slovakia --- # USEPA Method 8021 certified 100 pre-measured reagent pillows 0.02-2.00 mg/L Cl₂ precision - DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 100, Range from 0.02-2.00 mg/L Cl₂, USEPA Accepted Method 8021, Drinking Water and Wastewater Analysis, for Use with Colorimeter, 2105569 **Brand:** hach **Price:** € 61.85 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your water testing game with precision and ease! ## Quick Answers - **What is this?** - DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 100, Range from 0.02-2.00 mg/L Cl₂, USEPA Accepted Method 8021, Drinking Water and Wastewater Analysis, for Use with Colorimeter, 2105569 by hach - **How much does it cost?** € 61.85 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/18712651-dpd-free-chlorine-reagent-powder-pillows-10-ml-pack-100) ## Best For - hach enthusiasts ## Why This Product - Trusted hach brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ready When You Are:** Convenient 100-pack format keeps your lab or field team stocked without the hassle of frequent reordering. - • **Seamless Compatibility:** Optimized for Hach colorimeters and spectrophotometers, delivering smooth, error-free testing workflows. - • **Precision You Can Trust:** Accurate chlorine detection from ultra-low to moderate levels ensures your water quality data is always reliable. - • **Versatile Water Testing:** Perfect for municipal, groundwater, and surface water monitoring—cover all your water quality bases with one reagent. - • **EPA-Certified Confidence:** Meets USEPA Method 8021 standards, giving you regulatory-grade assurance for drinking and wastewater analysis. ## Overview Hach DPD Free Chlorine Reagent Powder Pillows provide EPA-certified, highly accurate chlorine measurement in a convenient 100-pack format. Designed for 10 mL samples, these pre-measured reagents cover a testing range of 0.02-2.00 mg/L Cl₂ and are fully compatible with Hach colorimeters and spectrophotometers, making them ideal for reliable drinking water and wastewater analysis across diverse water sources. ## Description Simplify chlorine testing with Hach DPD Free Chlorine Reagent Powder Pillows, compatible with a 10 mL sample volume. This 100-pack of boric acid-free reagents is perfect for targeted or lower-volume water testing needs while meeting USEPA standards for accurate analysis in drinking water and wastewater. Reliable and Easy to Use Delivering a precise testing range of 0.02–2.00 mg/L Cl₂, each powder pillow is pre-measured to ensure consistency for various applications, such as municipal and groundwater monitoring or surface water studies. Paired with Hach instruments, these reagents offer an efficient solution for professionals seeking reliable results. Trusted for Everyday Testing This compact pack is ideal for labs, field-testing teams, or anyone conducting periodic water analysis. Coupled with Hach’s automatic delivery program, managing reagent reorders has never been easier. Confidently monitor water quality with Hach’s dependable chlorine reagent system. ## Features - USEPA CERTIFIED QUALITY – Trusted for drinking water and wastewater chlorine analysis using Hach Method 8021. - ACCURATE CHLORINE MEASUREMENTS – Covers a 0.02-2.00 mg/L Cl₂ testing range to support reliable water monitoring. - CONVENIENT 100-PACK – Pre-measured powder pillows designed for smaller-scale or routine testing applications. - COMPATIBILITY YOU CAN RELY ON – Intended for seamless use with Hach colorimeters and spectrophotometers for effective results. - VERSATILE APPLICATIONS – Ideal for testing groundwater, municipal water, and surface water quality. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00N3Z46TK | | Best Sellers Rank | #12,173 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Analytical Reagents | | Date First Available | August 28, 2014 | | Is Discontinued By Manufacturer | No | | Item Weight | 1.06 ounces | | Item model number | 2105569 | | Manufacturer | HACH COMPANY | | National Stock Number | 6550-01-456-8981 | | Package Dimensions | 4.65 x 4.65 x 0.79 inches | ## Images ![- DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 100, Range from 0.02-2.00 mg/L Cl₂, USEPA Accepted Method 8021, Drinking Water and Wastewater Analysis, for Use with Colorimeter, 2105569 - Image 1](https://m.media-amazon.com/images/I/71XTha38PxL.jpg) ## Questions & Answers **Q: Hi, i plan to buy 10 of these. when is the expiry date?** A: According to the packets and the individual pillow packs, the expiration date for the Chlorine Free -DPD Reagent is 03/24 for storage between 10 degrees and - 25 degrees Celsius. **Q: when this item available ill be needing 5 packs of this?** A: https://www.amazon.com/gp/product/B00N3Z46TK/ref=cx_skuctr_share?smid=A38UJTODLS8CHT **Q: What are there in hach 2105569 dpd free chlorine reagent powder?** A: Hach item 2105569 contains DPD which is an indicator that changes color when oxidized, along with phosphoric acid for pH adjustment and a carboxylate salt. **Q: Will these work with Hanna colorimeter?** A: Which Hanna model is it.? If it is using DPD method. It can be used This kit is designed for 10 ml as a size of sample. You need to check both methods for Hanna meter and Hach’s ## Frequently Bought Together - Hach DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 100, USEPA Accepted, Drinking Water and Wastewater Analysis, Boric Acid Free, 0.02-2.00 mg/L Cl₂, 2105569 - Hach DPD Total Chlorine Reagent Powder Pillows, 10 mL, (Pack of 100), Chlorine Testing, Water Quality Reagents, Reliable Chlorine Measurement, Convenient Chlorine Testing Pack, 2105669 - Hach DR300 Pocket Colorimeter, Chlorine, Free + Total, LR/HR, Waterproof, Portable, for Reliable Water Quality Testing, Easy-to-Use Interface, Large Backlit Display, with Carry Case, LPV445.97.00110 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/18712651-dpd-free-chlorine-reagent-powder-pillows-10-ml-pack-100](https://www.desertcart.sk/products/18712651-dpd-free-chlorine-reagent-powder-pillows-10-ml-pack-100) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-06-22*