ISO 15923 Determination of Nitrate and Nitrite in Drinking Water
The ISO 15923 standard provides a robust method for the determination of nitrate (NO₃⁻) and nitrite (NO₂⁻) in drinking water. This critical analysis is essential to ensure compliance with international health standards, particularly in regions where contamination from agricultural runoff or industrial processes poses risks.
Water utilities, municipalities, and regulatory bodies rely on ISO 15923 as a benchmark for assessing the quality of potable water supplies. The test measures nitrate and nitrite concentrations to ensure they fall within safe limits set by public health organizations such as the World Health Organization (WHO) and the U.S. Environmental Protection Agency (EPA).
Drinking water contaminated with high levels of nitrates can lead to methemoglobinemia, a condition that affects oxygen-carrying capacity in blood. Nitrite exposure is linked to various health issues including cancer, particularly in infants. Therefore, regular and accurate testing is paramount for public safety.
The ISO 15923 procedure involves several steps, starting with the collection of water samples from distribution points. Samples are then carefully preserved using an acidification technique before being analyzed through a combination of methods including ion chromatography or colorimetric analysis. Ion chromatography is preferred for its high sensitivity and selectivity.
Preparation of the sample is critical, as it involves filtering water through pre-washed filters to remove particulates that could interfere with the measurement process. The filtered samples are then analyzed using ion chromatography or another suitable method. The results provide quantitative data on nitrate and nitrite concentrations in parts per million (ppm).
Our laboratory ensures precise and reliable results by adhering strictly to ISO 15923 protocols, which specify the use of standard reference materials for calibration and quality control checks. Our team of experts has extensive experience in conducting this test across various water sources, ensuring consistent accuracy.
| Step | Description |
|---|---|
| Filtering | Water is filtered through pre-washed filters to remove particulates. |
| Acidification | Samples are acidified using nitric acid to prevent microbial growth and preserve the analytes. |
| Storage | Samples are stored at 4°C until analysis. |
Industry Applications
- Municipal water utilities ensuring compliance with health standards
- Environmental agencies monitoring pollution sources in surface waters
- Agricultural operations assessing runoff impacts on local water supplies
- Industrial facilities testing discharge to prevent contamination of public water systems
The ISO 15923 method is widely used across sectors including municipal water treatment, environmental monitoring, and industrial wastewater management. It plays a crucial role in safeguarding public health by identifying potential risks early.
| Parameter | Method | Result Range (ppm) |
|---|---|---|
| Nitrate (NO₃⁻) | Ion Chromatography | 0.1 - 25 | Nitrite (NO₂⁻) | Ion Chromatography | 0.01 - 0.5 |
Eurolab Advantages
Our laboratory offers unparalleled expertise in ISO 15923 testing, boasting a team of certified analysts and state-of-the-art instrumentation. Our facilities are equipped with advanced ion chromatography systems that ensure precision and accuracy.
We provide comprehensive reporting services, including detailed analytical reports, traceability matrices, and compliance assessments. Our services extend beyond simple analysis; we offer tailored solutions to meet your specific requirements, whether they involve routine testing or one-off projects.
Our commitment to quality is reflected in our adherence to international standards such as ISO 17025 for laboratory accreditation. This ensures that all tests are conducted under controlled conditions and with the highest level of precision. Our clients benefit from this rigorous approach, which guarantees reliable data and robust evidence.
We also offer a range of additional services including sample preservation, shipping support, and emergency response protocols. Our dedicated team is always available to assist you through every stage of your testing needs.
Competitive Advantage and Market Impact
- Pioneering ISO 15923 compliance with advanced chromatography technology
- Proven track record in delivering accurate, consistent results across diverse sample matrices
- Comprehensive reporting services that meet regulatory and stakeholder expectations
Eurolab's leadership in ISO 15923 testing is recognized globally. Our expertise enables clients to stay ahead of regulatory changes and market trends, ensuring they are always compliant with the latest standards.
By offering a full suite of analytical services, Eurolab supports clients in maintaining high-quality water supplies. This not only enhances public health but also builds trust among stakeholders and regulators. Our commitment to excellence is reflected in our consistent performance and client satisfaction rates.
