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

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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 ensures long-term reliability

⚡Instant instrument response check, no prep needed

🧪4 sealed gel cells for precise calibration

Description

🧪 Calibrate with Confidence — Stay Ahead in Water Quality Testing!

SAFE COMPLIANT - Non-hazardous materials mean no SDS needed, simplifying lab safety protocols.
LAB GRADE CONFIDENCE - Computer-formulated gels provide stable, reproducible color standards for professional-grade chlorine measurement.
LONG LASTING RELIABILITY - Two-year shelf life guarantees consistent performance and dependable results over time.
FAST EFFORTLESS TESTING - No sample or reagent prep required—check your instrument’s accuracy in seconds.
PRECISION CALIBRATION ZERO HASSLE - Four ready-to-use sealed gel cells simulate exact chlorine levels from 0-2.0 mg/L Cl₂, eliminating guesswork.

The Hach SpecCheck Secondary Gel Standards Set offers four sealed 10 mL gel cells with precise chlorine concentrations (0-2.0 mg/L Cl₂) for quick, reliable instrument calibration. With a two-year shelf life and no preparation required, this non-hazardous kit ensures stable, lab-grade accuracy and consistent water quality testing results.

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