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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💧 Stay ahead in water quality with precision you can trust!

EPA TRUSTED PRECISION - Ensure compliance with USEPA standards for drinking and wastewater chlorine analysis.
VERSATILE WATER TESTING - Perfect for municipal, groundwater, and surface water monitoring—stay ahead in water safety.
READY TO USE CONVENIENCE - Pre-measured 10 mL powder pillows streamline testing—no guesswork, no mess.
ULTRA ACCURATE DETECTION - Detect free chlorine levels from 0.02 to 2.00 mg/L for reliable water quality insights.
SEAMLESS INSTRUMENT COMPATIBILITY - Optimized for Hach colorimeters and spectrophotometers to deliver consistent results.

Hach DPD Free Chlorine Reagent Powder Pillows offer EPA-certified, boric acid-free chlorine testing with a precise 0.02-2.00 mg/L detection range. Packaged in convenient pre-measured 10 mL pillows (100 per pack), they ensure consistent, reliable results when paired with Hach colorimeters or spectrophotometers—ideal for professional water quality monitoring across drinking, municipal, and wastewater applications.

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Brand	Hach
Manufacturer	HACH COMPANY
Model number	2105569
Number of Memory Sticks	100
Item Weight	30 g
Package Dimensions	11.8 x 11.8 x 2 cm; 30 g
Item model number	2105569
Included Components	Lab
Are batteries included?	No

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

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