Jump to Method AlkalinityAluminumAmmoniaBromineCalciumCarbon Dioxide (dissolved)Chemical Oxygen Demand (COD)ChlorideChlorineChlorine DioxideChromateConductivityCopperCyanideDEHADetergents (anionic surfactants)Filming Amine (aliphatic amine)FluorideFormaldehydeGlutaraldehydeGlycolHardnessHydrazineHydrogen PeroxideHypochloriteIronManganeseMercaptobenzothiazole (MBT)MolybdateNitrateNitriteOxygen (dissolved)OzonePeracetic AcidPermanganatepHPhenolsPhosphateQuaternary Ammonium Compounds (QACs)SilicaSulfateSulfideSulfiteThiosulfateTotal Dissolved Solids (TDS)Total Petroleum Hydrocarbons (TPH)TurbidityZinc   Nitrite   Methods Nitrite, an intermediate in the nitrogen cycle, is formed during the decomposition of organic matter but readily oxidizes to form nitrate. These processes occur in wastewater treatment plants, water distribution systems, and natural waters. Nitrites are useful as corrosion inhibitors, preservatives, pigments, and in manufacturing many organic preservative chemicals. A Maximum Contaminant Level of 1 mg/L has been established by the USEPA for nitrite-nitrogen in drinking water. Azo Dye Formation Method Reference: APHA Standard Methods, 20th. ed., pp.4-112, Method 4500-NO2¯B (1998). USEPA Methods for Chemical Analysis of Water and Wastes, Method 354.1 (1983). Test kits containing CHEMets®, VACUettes®, or Vacu-vials® ampoules are based on a colorimetric chemistry in which nitrite reacts to form a pink azo dye. The intensity of the color is directly proportional to the concentration of nitrite in the sample. Nitrate will not interfere. Results are expressed as ppm (mg/L) NO2-N. The Ceric Sulfate Titrimetric Method Reference: Developed by CHEMetrics, Inc. CHEMetrics’ method is particularly applicable to systems that contain nitrite corrosion inhibitors in the presence of glycol. Ceric sulfate is the titrant and ferroin is the end point indicator. The method is free from glycol interference in samples that contain up to 75% glycol. Results are expressed as ppm (mg/L) NaNO2.   • Click to View MSDS and Kit instructions     Visual Kits 0-2 ppm as N 0.25 ppm / Method: Azo Dye Formation   Cat# CHEMets Kit K-7004 CHEMets Refill, 30 ampoules R-7002 Comparator, Shelf-life 2 years: 0, 0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 1.75, 2.0 ppm C-7004 Kit comes in a plastic case and contains everything needed to perform 30 tests: Refill, Comparator, 25 mL sample cup, instructions, and MSDS. Kit didatangkan di dalam bekas plastik dan mengandungi semua keperluan untuk melakukan 30 ujian: Isian Semula, Pembanding Julat rendah dan tinggi, Cawan Sampel 25mL, arahan dan MSDS. Click here to Buy Now Complete Kits! 0-55 ppm 8 ppm / Method: Azo Dye Formation   Cat# VACUettes Kit K-7004D VACUettes Refill, 30 ampoules R-7002D Comparator, Shelf-life 2 years: 0, 8, 15, 22.5, 30, 37.5, 45, 50, 55 ppm C-7004D Kit comes in a plastic case and contains everything needed to perform 30 tests (except distilled water): Refill, Comparator, dilutor snapper cup, micro test tube, instructions, and MSDS. Click here to Buy Now Complete Kits! 0-110 ppm 15 ppm / Method: Azo Dye Formation   Cat# VACUettes Kit K-7004A VACUettes Refill, 30 ampoules R-7002A Comparator, Shelf-life 2 years: 0, 15, 30, 45, 60, 75, 90, 100, 110 ppm C-7004A Kit comes in a plastic case and contains everything needed to perform 30 tests (except distilled water): Refill, Comparators, dilutor snapper cup, micro test tube, instructions, and MSDS. Click here to Buy Now Complete Kits! 0-220 ppm 30 ppm / Method: Azo Dye Formation   Cat# VACUettes Kit K-7004B VACUettes Refill, 30 ampoules R-7002B High Range Comparator, Shelf-life 2 years: 0, 30, 60, 90, 120, 145, 170, 195, 220 ppm C-7004B Kit comes in a plastic case and contains everything needed to perform 30 tests (except distilled water): Refill, Comparator, dilutor snapper cup, micro test tube, instructions, and MSDS. Click here to Buy Now Complete Kits! 0-2200 ppm 300 ppm / Method: Azo Dye Formation   Cat# VACUettes Kit K-7004C VACUettes Refill, 30 ampoules R-7002C Comparator, Shelf-life 2 years: 0, 300, 600, 900, 1200, 1450, 1700, 1950, 2200 ppm C-7004C Kit comes in a plastic case and contains everything needed to perform 30 tests (except distilled water): Refill, Comparator, dilutor snapper cup, micro test tube, instructions, and MSDS. Click here to Buy Now Complete Kits! 250-2500 ppm as NaNO2 250 ppm / Method: Ceric Sulfate Titrant with Ferroin Indicator   Cat# Titrets Kit K-7025 Increments: 250, 275, 300, 325, 350, 375, 400, 450, 500, 625, 750, 875, 1000, 1250, 1750, 2500 ppm Kit comes in a cardboard box and contains everything needed to perform 30 tests: thirty ampoules with valve assemblies, titrettor, 25 mL sample cup, instructions, and MSDS. Click here to Buy Now Complete Kits! 500-5000 ppm as NaNO2 500 ppm / Method: Ceric Sulfate Titrant with Ferroin Indicator   Cat# Titrets Kit K-7050 Increments: 500, 550, 600, 650, 700, 750, 800, 900, 1000, 1250, 1500, 1750, 2000, 2500, 3500, 5000 ppm Kit comes in a cardboard box and contains everything needed to perform 30 tests: thirty ampoules with valve assemblies, titrettor, 25 mL sample cup, instructions, and MSDS. Click here to Buy Now Complete Kits!     Instrumental Kits 0.080-0.800 ppm as N Azo Dye Formation   Cat# Vacu-vials Kit K-7003 Kit comes in a cardboard box and contains everything needed to perform 30 tests: thirty ampoules, 25 mL sample cup, ampoule blank, instructions, calibration table, and MSDS. Click here to Buy Now Complete Kits!   Kit Components common to Nitrite Description Cat# Sample Cup Pack, 25 mL (6 ea) A-0013 Micro Test Tube Pack (10 ea) A-0015 Dilutor Snapper Cup Pack (6 ea) A-0018 Ampoule Blank Pack (5 ea) A-0023 Titrettor Pack (1 ea) A-0053 Click here to Buy Now Complete Kits!