HANNA HI93754A-25 COD, LR EPA, DICHROMATE METHOD, REAGENT KIT FOR 25 TEST VIALS (O2)

Product Overview

• Model: HI93754A 25

• Type: Low Range COD reagent kit using the EPA-approved dichromate method (with mercuric sulfate for chloride suppression) 

• Test count: 25 pre-dosed vials (approx. /3 /mL each) 

Measurement Range & Performance

• Concentration Range: 0 – 150 /mg/L O

• Resolution: 1 /mg/L

• Accuracy: ±5 /mg/L plus ±5% of reading 

• Designed for wastewater, environmental, and industrial samples that may contain chloride—thanks to mercuric sulfate inclusion 

Test Procedure & Features

• Vials contain pre-measured reagents, cutting down time on prep and cleanup 

• Follow EPA Method 410.4: heat the sealed vial under acidic conditions → hexavalent chromium is reduced to trivalent → measure color intensity → photometer displays COD in mg/L O  

• Many photometers support barcode detection for method and lot tracking—ideal for GLP compliance

 Safety & Disposal

• Contains mercuric sulfate (HgSO ):

  • Effective at reducing chloride interference

  • Means used vials are classified as hazardous mercury waste—must be disposed of accordingly