discounting certified 16mm hach cod vials with high range
COD Digestion Vials, High Range, pk/150 | Hach USA – Details
EPA Approved. Low Range (LR) and High Range (HR) vials are approved by the USEPA for NPDES reporting of wastewater COD concentrations.
COD Digestion Vials, High Range, pk/25 | Hach USA – Overview
For determination of high range Chemical Oxygen Demand (COD) by the Reactor Digestion method. US EPA approved for wastewater analysis using Hach Method 8000
COD Digestion Vials, High Range, pk/150 | Hach USA – Overview
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