Hi, i plan to buy 10 of these. when is the expiry date?

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.

when this item available ill be needing 5 packs of this?

https://www.amazon.com/gp/product/B00N3Z46TK/ref=cx_skuctr_share?smid=A38UJTODLS8CHT

What are there in hach 2105569 dpd free chlorine reagent powder?

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.

Will these work with Hanna colorimeter?

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

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Hach 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

Hach 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

Product ID: 18712651

✅USEPA Method 8021 certified

📦100 pre-measured reagent pillows

🧪0.02-2.00 mg/L Cl₂ precision

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Description

💧 Elevate your water testing game with precision and ease!

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.

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.

Specifications

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

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