Individual Test Kits:

Nitrate Nitrogen (Individual Test Kits)
Nitrate Nitrogen: The nitrate is reduced to nitrite by cadmium or zinc and this undergoes diazotization/coupling to form a pink color. All kits below use cadmium except #3354 and 5891, which use zinc and contain a reagent that eliminates nitrite interference. Kit #3519 tests both nitrate and nitrite.
Order Code/Model	Test System	Range/Sensitivity	# of Tests (# Reagents)	Shipping Code (Weight/lbs)
3519 Includes Nitrite	Cadmium Reduction Octet Comparator	0.25, 0.5, 1.0, 2.0, 4.0, 6.0, 8.0, 10.0 ppm NO3––N	40 (3)	R1 (1)
3110	Cadmium Reduction Octet Comparator	0.25, 0.5, 1.0, 2.0, 4.0, 6.0, 8.0, 10.0 ppm NO3––N	50 (2)	R1 (1)
3615 GLOBE Approved Advanced Placement	Cadmium Reduction Octet Comparator with Axial Reader	0, 0.2, 0.4, 0.6, 0.8, 1.0 ppm NO3––N	50 (2)	R1 (2)
3354	Zinc Reduction Octa-Slide	0, 1, 2, 4, 6, 8, 10, 15 ppm NO3––N	50 (2)	NH (2)
5891	TesTabs® Zinc Reduction Color Chart	0.0, 5.0, 20.0, 40.0 ppm NO3	100 (1)	NH (1)

Shipping Codes & Weight:

Shipping codes and weights for shipping are included in this catalog for your convenience. The shipping code will refer to one of the following in the chart below. Weight will be in pounds and enclosed in ( ).

• NH: Non Hazardous - No Fees
• HF: Hazardous Materials - Air & Ground Fees
• R1: Small Quantity Hazardous Materials - No Fees
• R2 & R3: Hazardous Materials - Air Fees Only

Direct Reading Titrators have a specific range, but may be refilled to test higher concentrations.