wholesales certified 16mm hach cod vials with low range

Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the world.

Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the world.

Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the world.

Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the world.

Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the world.

Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the world.

Mercury-free COD 2 Vials. 16 mm Test 'N Tube for all instruments except DR 900 and Pocket Colorimeter II. Low Range — 3-150 mg/L with 25 tests; High Range 

Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the world.

News wholesales certified 10mL hach cod vials exporter factory Nov 22, EPA VOA vials Suppliers Hach 2125825 COD Digestion Vials, Low Range, (Pack.