Nitrogen Testing


Monitor nitrogen levels in water treatment.


Nitrogen testing kits measure nitrate, nitrite, and ammonia in water and wastewater. These tests help ensure compliance with environmental regulations.

Hach IntelliCAL ISENH3181 Ammonia Ion Selective Electrode Replacement Membranes, 3/Pack, 5812711
Quick View
Hach IntelliCAL ISENH3181 Ammonia Ion Selective Electrode Replacement Membranes, 3/Pack, 5812711
$154.00

Mfr. Part # 5812711

Product # 702282

Hach Sension+ 9663 Ammonium Combination Ion Selective Electrode (ISE), LZW9663C.97.002
Quick View
Hach Sension+ 9663 Ammonium Combination Ion Selective Electrode (ISE), LZW9663C.97.002
$1,306.00

Mfr. Part # LZW9663C.97.002

Product # 703839

Hach Sension+ 9662 Nitrate Combination Ion Selective Electrode (ISE), LZW9662C.97.002
Quick View
Hach Sension+ 9662 Nitrate Combination Ion Selective Electrode (ISE), LZW9662C.97.002
$1,347.00

Mfr. Part # LZW9662C.97.002

Product # 703836

Hach IntelliCAL ISENO318101 Nitrate (NO₃⁻) ISE w/ Calibration Reagents Pack, ISENO3181AP
Quick View
Hach IntelliCAL ISENO318101 Nitrate (NO) ISE with Calibration Reagents Pack ISENO3181AP
$1,423.00

Mfr. Part # ISENO3181AP

Product # 703507

Hach IntelliCAL ISENH418101 Ammonium (NH₄⁺) ISE w/ Calibration Reagents Pack, ISENH4181AP
Quick View
Hach IntelliCAL ISENH418101 Ammonium (NH) ISE with Calibration Reagents Pack ISENH4181AP
$1,337.00

Mfr. Part # ISENH4181AP

Product # 703504

Hach IntelliCAL ISENH4181 Ammonium (NH₄⁺) ISE, 3 m cable, ISENH418103
Quick View
Hach IntelliCAL ISENH4181 Ammonium (NH) ISE 3m Cable ISENH418103
$1,316.00

Mfr. Part # ISENH418103

Product # 703503

Hach IntelliCAL ISENH3181 Ammonia (NH₃) ISE, 3 m cable, ISENH318103
Quick View
Hach IntelliCAL ISENH3181 Ammonia (NH) ISE 3m Cable ISENH318103
$1,205.00

Mfr. Part # ISENH318103

Product # 703500

Hach IntelliCAL ISENH4181 Ammonium (NH₄⁺) ISE, 1 m cable, ISENH418101
Quick View
Hach IntelliCAL ISENH4181 Ammonium (NH) ISE 1m Cable ISENH418101
$1,260.00

Mfr. Part # ISENH418101

Product # 703502

Hach IntelliCAL ISENO3181 Nitrate (NO₃⁻) ISE, 1 m cable, ISENO318101
Quick View
Hach IntelliCAL ISENO3181 Nitrate (NO) ISE 1m Cable ISENO318101
$1,348.00

Mfr. Part # ISENO318101

Product # 703505

Hach IntelliCAL ISENH3181 Ammonia (NH₃) ISE, 1 m cable, ISENH318101
Quick View
Hach IntelliCAL ISENH3181 Ammonia (NH) ISE 1m Cable ISENH318101
$1,155.00

Mfr. Part # ISENH318101

Product # 703499

Hach IntelliCAL ISENO3181 Nitrate (NO₃⁻) ISE, 3 m cable, ISENO318103
Quick View
Hach IntelliCAL ISENO3181 Nitrate (NO) ISE 3m Cable ISENO318103
$1,385.00

Mfr. Part # ISENO318103

Product # 703506

Hach IntelliCAL ISENH318101 Ammonia (NH₃) ISE w/ Calibration Reagents Pack, ISENH3181AP
Quick View
Hach IntelliCAL ISENH318101 Ammonia (NH) ISE with Calibration Reagents Pack ISENH3181AP
$1,409.00

Mfr. Part # ISENH3181AP

Product # 703501

Thermo Scientific Orion Gas-Sensing ISE Membranes, Gas-Sensing Ion Selective Electrode, 951215
Quick View
Thermo Scientific Orion Ammonia Gas-Sensing ISE Membranes Pack of 3 951215
$105.75

Mfr. Part # 951215

Product # 705983

Thermo Scientific Orion Ammonia Gas Sensing ISE Electrodes, BNC, 9512BNWP
Quick View
Thermo Scientific Orion Ammonia Gas Sensing ISE Electrode BNC 9512BNWP
$1,018.65

Mfr. Part # 9512BNWP

Product # 705984

Thermo Scientific Orion Gas-Sensing ISE Membranes, Gas-Sensing ISE Membranes, 951204
Quick View
Thermo Scientific Orion Gas-Sensing ISE Membranes Standard Ammonia Electrode 9512BNWP 9512 951204
$197.90

Mfr. Part # 951204

Product # 705987

Thermo Scientific Orion Gas-Sensing ISE Membranes, Membrane Caps, 951205
Quick View
Thermo Scientific Orion Gas-Sensing ISE Electrode Ammonia Membranes Caps 951205
$244.45

Mfr. Part # 951205

Product # 705988

Thermo Scientific Orion High-Performance Ammonia Electrode, High-Performance Ammonia ISE, Epoxy, BNC
Quick View
Thermo Scientific Orion High-Performance Ammonia Electrode ISE Epoxy BNC
$1,049.95

Mfr. Part # 9512HPBNWP

Product # 705977

Thermo Scientific™ Orion™ Nitrate Electrode, Combination ISE, BNC, 9707BNWP
Quick View
Thermo Scientific Orion ionplus Sure-Flow Nitrate Electrode Body Combination ISE BNC 9707BNWP
$1,368.45

Mfr. Part # 9707BNWP

Product # 706185

Thermo Scientific™ Orion™ Nitrate Electrode, Combination ISE, Sure-Flow, 970701
Quick View
Thermo Scientific Orion Module for Nitrate Sure-Flow Electrode 9707BNWP 970701
$436.60

Mfr. Part # 970701

Product # 706189

Thermo Scientific™ Orion™ Nitrate Interference Suppressor Solution for Nitrate Electrode, 930710
Quick View
Thermo Scientific Orion ionplus Nitrate Interference Suppressor Solution for Nitrate Electrode 930710
$134.00

Mfr. Part # 930710

Product # 706187

Thermo Scientific™ Orion™ Replacement Module for Nitrate Half-Cell Electrode 9307BNWP, 930701
Quick View
Thermo Scientific Orion Replacement Module for Nitrate Half-Cell Electrode 9307BNWP 930701
$1,009.95

Mfr. Part # 930701

Product # 706193

Thermo Scientific™ Orion™ ISA for Fluoroborate, Nitrate, and Perchlorate Electrodes, 475 mL, 930711
Quick View
Thermo Scientific Orion Ionic Strength Adjuster ISA for Fluoroborate Nitrate and Perchlorate Electrodes 475 mL 930711
$131.00

Mfr. Part # 930711

Product # 706186

Thermo Scientific™ Orion™ ISE Filling Solution, 60 mL, 951209
Quick View
Thermo Scientific Orion ISE Electrode Filling Solution High Performance Ammonia 60 mL 951209
$109.00

Mfr. Part # 951209

Product # 706170

Thermo Scientific™ Orion™ Nitrate Electrode, Combination ISE, BNC, 9307BNWP
Quick View
Thermo Scientific Orion Half-Cell Nitrate Electrode Waterproof BNC Connector 9307BNWP
$1,241.70

Mfr. Part # 9307BNWP

Product # 706190

Hach DR300 Pocket Colorimeter, Nitrate, with Box, LPV445.97.02110
Quick View
Hach DR300 Pocket Colorimeter, Nitrate, w/ Box, LPV445.97.02110
$711.00

Mfr. Part # LPV445.97.02110

Product # 700103

Hach DR300 Pocket Colorimeter, Monochloramine/Free Ammonia, with Box, LPV445.97.26110
Quick View
Hach DR300 Pocket Colorimeter Monochloramine/Free Ammonia with Box LPV445.97.26110
$711.00

Mfr. Part # LPV445.97.26110

Product # 700096

Hach DR300 Pocket Colorimeter, Ammonia Nitrogen, with Box, LPV445.97.40110
Quick View
Hach DR300 Pocket Colorimeter Ammonia Nitrogen with Box LPV445.97.40110
$711.00

Mfr. Part # LPV445.97.40110

Product # 700095

Core & Main Ammonia Standard, 1.0 ppm as N, 1 L
Quick View
Core & Main Ammonia Standard, 1.0 ppm as N, 1 L
$41.30

Mfr. Part # AS1001-Q

Product # 707324

Core & Main Ammonia Standard, 1.0 ppm as N, 500 mL
Quick View
Core & Main Ammonia Standard, 1.0 ppm as N, 500 mL
$28.95

Mfr. Part # AS1001-P

Product # 707323

Core & Main Nitrate Standard as N, 1000 mg/L (ppm), 1 L
Quick View
Core & Main Nitrate Standard as N, 1000 mg/L (ppm), 1 L
$54.35

Mfr. Part # NS4750-Q

Product # 707112

Core & Main Nitrate Standard as N, 1000 mg/L (ppm), 500 mL
Quick View
Core & Main Nitrate Standard as N, 1000 mg/L (ppm), 500 mL
$33.15

Mfr. Part # NS4750-P

Product # 707111

Core & Main Nitrate Standard as N, 100 mg/L (ppm), 1 L
Quick View
Core & Main Nitrate Standard as N, 100 mg/L (ppm), 1 L
$54.35

Mfr. Part # NS4700-Q

Product # 707110

Core & Main Nitrate Standard as N, 100 mg/L (ppm), 500 mL
Quick View
Core & Main Nitrate Standard as N, 100 mg/L (ppm), 500 mL
$33.05

Mfr. Part # NS4700-P

Product # 707109

Core & Main Nitrate Standard as N, 10.0 mg/L (ppm), 1 L
Quick View
Core & Main Nitrate Standard as N, 10.0 mg/L (ppm), 1 L
$59.05

Mfr. Part # NS4610-Q

Product # 707108

Core & Main Nitrate Standard as N, 10.0 mg/L (ppm), 500 mL
Quick View
Core & Main Nitrate Standard as N, 10.0 mg/L (ppm), 500 mL
$32.20

Mfr. Part # NS4610-P

Product # 707107

Core & Main Nitrate Standard as N, 2.0 mg/L, 1 L
Quick View
Core & Main Nitrate Standard as N, 2.0 mg/L, 1 L
$51.40

Mfr. Part # NS4602-Q

Product # 707106

Core & Main Nitrate Standard as N, 2.0 mg/L, 500 mL
Quick View
Core & Main Nitrate Standard as N, 2.0 mg/L, 500 mL
$31.15

Mfr. Part # NS4602-P

Product # 707105

Core & Main Nitrate Standard as N, 1.0 mg/L (ppm), 1 L
Quick View
Core & Main Nitrate Standard as N, 1.0 mg/L (ppm), 1 L
$53.70

Mfr. Part # NS4601-Q

Product # 707104

Core & Main Nitrate Standard as N, 1.0 mg/L (ppm), 500 mL
Quick View
Core & Main Nitrate Standard as N, 1.0 mg/L (ppm), 500 mL
$41.25

Mfr. Part # NS4601-P

Product # 707103

Core & Main Ammonia Standard, 100ppm as N, 1 L
Quick View
Core & Main Ammonia Standard, 100ppm as N, 1 L
$55.65

Mfr. Part # AS1100-Q

Product # 706922

Core & Main Ammonia Standard, 100ppm as N, 500 mL
Quick View
Core & Main Ammonia Standard, 100ppm as N, 500 mL
$34.25

Mfr. Part # AS1100-P

Product # 706921

Core & Main Ammonia Standard, 50ppm as N, 1 L
Quick View
Core & Main Ammonia Standard, 50ppm as N, 1 L
$68.80

Mfr. Part # AS1050-Q

Product # 706920

Core & Main Ammonia Standard, 50ppm as N, 500 mL
Quick View
Core & Main Ammonia Standard, 50ppm as N, 500 mL
$34.00

Mfr. Part # AS1050-P

Product # 706919

Core & Main Ammonia Standard, 30ppm as N, 1 L
Quick View
Core & Main Ammonia Standard, 30ppm as N, 1 L
$50.95

Mfr. Part # AS1030-Q

Product # 706918

Core & Main Ammonia Standard Solution, 30 ppm as N, 500 mL
Quick View
Core & Main Ammonia Standard Solution, 30 ppm as N, 500 mL
$34.00

Mfr. Part # AS1030-P

Product # 706917

Core & Main Ammonia Standard, 20ppm as N, 1 L
Quick View
Core & Main Ammonia Standard, 20ppm as N, 1 L
$50.95

Mfr. Part # AS1020-Q

Product # 706916

Core & Main Ammonia Standard, 20ppm as N, 500 mL
Quick View
Core & Main Ammonia Standard, 20ppm as N, 500 mL
$34.00

Mfr. Part # AS1020-P

Product # 706915

Core & Main Ammonia Standard, 10ppm as N, 1 L
Quick View
Core & Main Ammonia Standard, 10ppm as N, 1 L
$41.30

Mfr. Part # AS1010-Q

Product # 706914