Product Description
HI749-25 Chromium VI Low Range Checker HC Reagents – 25 Tests
Premium replacement reagents designed specifically for the Hanna HI749 Chromium VI Low Range Checker® HC. Each kit provides 25 accurate chromium VI tests for drinking water monitoring, environmental compliance, industrial wastewater analysis, and laboratory applications requiring low-range hexavalent chromium detection (0-300 ppb).
Why Choose HI749-25 Reagents?
Pre-measured precision – Ready-to-use reagent packets eliminate measuring errors and deliver consistent, accurate results every time
Diphenylcarbohydrazide method – Industry-standard colorimetric testing delivers reliable chromium VI analysis
High-purity formulation – Manufactured in Hanna's state-of-the-art ISO-certified facilities for dependable performance
25 tests per kit – Cost-effective supply for regular chromium VI monitoring programs
Full traceability – Each packet clearly marked with lot number and expiration date for quality assurance and compliance
Low-range capability – Optimized for 0 to 300 ppb (parts per billion) chromium VI detection in drinking water and environmental samples
Fast results – Simple add-and-read process for rapid chromium VI assessment
Why Monitor Chromium VI?
Hexavalent chromium (Chromium VI, Cr⁶⁺) is a toxic heavy metal and known carcinogen that can contaminate drinking water through industrial discharge, metal plating operations, and natural mineral deposits. The EPA has established strict regulations for chromium VI in drinking water due to its serious health risks. Low-range testing (0-300 ppb) is essential for compliance monitoring, environmental assessment, and public health protection.
How It Works
The HI749-25 reagents use the proven Diphenylcarbohydrazide colorimetric method. When chromium VI reacts with the reagent, it forms a purple-colored complex proportional to chromium VI concentration. The HI749 Checker HC measures this color intensity photometrically and displays the precise chromium VI concentration in ppb.
Testing procedure:
Add HI749-25 reagent packet to the water sample
Mix thoroughly to ensure complete reaction
Wait for color development (purple tint indicates chromium VI presence)
The HI749 Checker HC analyzes the color intensity and displays results in ppb
Technical Specifications
Model: HI749-25
Tests per kit: 25
Measurement range: 0 - 300 ppb (parts per billion) chromium VI
Testing method: Diphenylcarbohydrazide colorimetric
Compatible device: HI749 Chromium VI Low Range Checker HC only
Chemical purity: High-grade analytical reagents
Origin: Manufactured in Romania by Hanna Instruments
Quality control: Lot-tracked with expiration dating
Applications
Essential for low-range chromium VI monitoring in drinking water compliance testing (EPA regulations), municipal water treatment plants, industrial wastewater discharge monitoring, metal plating and finishing operations, environmental site assessment, groundwater contamination studies, laboratory chromium VI analysis, and any application requiring sensitive hexavalent chromium detection at ppb levels.
Chromium VI Health & Regulatory Context
Hexavalent chromium is classified as a human carcinogen and can cause serious health effects including lung cancer, skin irritation, and respiratory problems. Regulatory agencies worldwide have established strict limits for chromium VI in drinking water. The low-range capability (0-300 ppb) of the HI749 system is specifically designed for compliance with these stringent standards and early detection of contamination.
What's Included
One HI749-25 reagent kit containing 25 pre-measured reagent packets for chromium VI testing (0-300 ppb range), complete with lot number and expiration date for quality tracking. Compatible exclusively with Hanna HI749 Chromium VI Low Range Checker HC.
