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Drinking Water Nitrite Nitrate Test Strips

SKU: 33817-NN

$19.95USD or lower Each

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Measure nitrate and nitrite levels in drinking water, wells, and private supplies quickly & easily with Indigo® Nitrite-Nitrate test strips. Meet EPA/WHO guidelines and explore links to public health and environmental safety.

Nitrate and nitrite contamination of drinking water is a public health concern, especially in rural and agricultural areas where fertilizer use or septic systems can affect groundwater. These nitrite/nitrate test strips provide a quick and reliable way to screen tap water, wells, and private supplies for contamination levels relative to EPA and WHO drinking water limits. Rapid screening helps homeowners, health professionals, and educators alike understand risks such as methemoglobinemia (“blue baby syndrome”) and broader implications in environmental toxicology.

Indigo® Nitrite-Nitrate test strips measure nitrite in 0 to 25ppm & nitrate in 0-500ppm levels simultaneously in ground, well or drinking water; only $19.95/50 strips.

Nitrate is reduced to nitrite quickly in well-aerated soils and bioreactors by aerobic bacteria. These test strips can help determine rates of nitrification, nitrite removal & biological oxygen demand. They can also be used to determine levels in wine, seafood and charcuterie meats.

See below for Certificate of Analysis, SDS & Stability documents.

Details Specs Docs Reviews
Details
Discipline Learning Outcomes / Key Features
Chemistry Understand nitrate/nitrite solubility in water and their role as common groundwater contaminants.
Biology Connect nitrate/nitrite ingestion to human health effects such as methemoglobinemia (“blue baby syndrome”).
Environmental Science Relate agricultural runoff and septic system leakage to groundwater nitrate levels and drinking water safety.
Public Health Recognize WHO and EPA nitrate/nitrite limits for drinking water and their role in regulatory compliance.
Education Demonstrate real-world applications of water chemistry in classroom labs, showing links between science and public safety.

Tips for Best Results

  • Use clean containers: Always collect water samples in clean, clear glass or plastic cups to avoid contamination.
  • Follow timing exactly: Immerse the strip fully, remove promptly, and compare colors within the recommended time (usually 30–60 seconds).
  • Good lighting matters: Interpret colors in natural daylight or under a bright white light source to avoid misreads.
  • Avoid touching pads: Oils or residues from your fingers can affect the color reaction. Handle strips by the end only.
  • Test regularly: For private wells, test at least once a year, and more often if located in agricultural regions or after flooding.
  • Confirm borderline results: If your readings approach EPA/WHO limits, send a sample to a certified laboratory for verification.
Related information or images
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Specifications
  • Nitrate is measured in increments of 10, 25, 50, 100, 250, & 500ppm
  • Nitrite is measured in increments of 1, 5, 10, & 25ppm
  • The number of strips (50) per vial is approximate.
  • These strips are extremely sensitive to airborne humidity. Reseal the desiccant lined bottle immediately after removing a strip to ensure 3 year shelf life.
Documentation

Test Strip Documentation
Stability Statement Certificate of Analysis SDS
Indigo Nitrite Test Strips 25ppm Nitrate 500ppm Stability Statement Indigo Nitrite Test Strips 25ppm Nitrate 500ppm Certificate of Analysis Indigo Nitrite Test Strips 25ppm Nitrate 500ppm SDS
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