Hi, the product description says have a two-year shelf life from date of manufacture, how much time remains for expiration?

We do not know the exact date until we know what lot # was shipped. We will guarantee at least 50% of the shelf life. CorinaHach Company

Hach SpecCheck Secondary Gel Standards Set, DPD Chlorine - LR 0-2.0 mg/L Cl₂, Chlorine Testing, Water Quality Standards, Accurate Chlorine Measurement, Laboratory Grade Chlorine Standards, 2635300

Product ID: 30333360

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⏳2-year shelf life

📊0-2.0 mg/L chlorine range

🧪4 precision gel-filled cells

Description

🧪 Elevate your chlorine testing game with precision you can trust!

SAFE COMPLIANT - Non-hazardous gels with no SDS required—lab safety simplified.
LAB GRADE ACCURACY - Ensure your chlorine tests never miss the mark with certified gel standards.
READY TO USE CONVENIENCE - Pre-filled sealed glass cells mean zero prep time—just test and trust.
LONG SHELF LIFE ASSURANCE - Two years of dependable performance, minimizing costly replacements.
CONSISTENT INSTRUMENT VALIDATION - Confirm your device’s response every time for reliable water quality data.

The Hach SpecCheck Secondary Gel Standards Set offers four ready-to-use, sealed glass cells filled with color-simulating gels for accurate chlorine measurement in the 0-2.0 mg/L range. Designed for laboratory-grade instrument validation, these standards come with a two-year shelf life and a Certificate of Analysis, ensuring consistent, safe, and hassle-free water quality testing.

Specifications

ASIN	B00N4028YE
Best Sellers Rank	#238,594 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #379 in Analytical Reagents
Date First Available	August 28, 2014
Item Weight	4.9 ounces
Item model number	2635300
Manufacturer	HACH COMPANY
National Stock Number	6550-01-504-0944
Product Dimensions	3 x 3 x 3 inches

Reviews

W**E

I would buy again

Product was as described and was only a month old so the expiration dates were far enough out that I would have a long life use for the item.

13.12.2020

J**H

Expensive

They expire less than a year from date of receipt

22.12.2021

R**.

SpecChek works!

This product is used to perform monthly accuracy checks required by the state of Texas for Hatch Chlorine Testers. The product arrived on time and was well packaged.

15.03.2019

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