High Range, COD vials comes in a cardboard box and contains 150 vials - enough to perform up to 149 tests, and instruction book.

All COD Kits require the use of a Digestor Block and the V-2000 Photometer, an A-7325 COD Photometer, or a spectrophotometer capable of accepting a 16 mm round cell.  Photometers sold separately. 

A fresh reagent ampoule blank must be prepared for each series of tests; therefore the number of samples that can be tested with each kit will vary.