What is Conductivity Testing?

Conductivity testing , EC (electrical conductivity), and TDS (total dissolved solids) are used to assess the concentration of dissolved ions in aqueous solutions, primarily in water quality testing. Electrical conductivity measures the ability of a solution to conduct an electric current, which is directly related to the concentration of charged particles (ions) present.

EC is expressed in microsiemens per centimeter (µS/cm), and it provides an indirect measurement of the TDS, which is the total concentration of dissolved substances such as salts, minerals, and organic matter.

According to standard methodologies, the TDS value can be approximated by multiplying the EC value by a conversion factor, typically ranging from 0.5 to 1.0, depending on the ionic composition of the solution. Conductivity testing is regulated by international standards, such as those set by ASTM and ISO, ensuring consistency and reliability in the measurement of water purity, environmental monitoring, and industrial processes where ion concentration is a critical factor.

These tests are commonly employed in industries such as water treatment, pharmaceuticals, and food production to ensure compliance with quality control standards.

Conductivity Testing Procedure

Electrical conductivity (EC) measures the ability of a solution to conduct an electric current, which is directly proportional to the concentration of dissolved ions such as salts, acids, and bases. The procedure for EC testing involves inserting an electrode into the solution, which applies an alternating current and measures the flow of electrical current through the solution.

The measurement is expressed in microsiemens per centimeter (µS/cm). Standard protocols, such as those outlined by the American Society for Testing and Materials (ASTM D1125) or ISO 7888, recommend using a calibrated conductivity meter with temperature compensation to account for the influence of temperature on conductivity values.

TDS (Total Dissolved Solids), on the other hand, quantifies the total concentration of dissolved substances, expressed as milligrams per liter (mg/L) or parts per million (ppm). TDS is derived from conductivity readings, based on the assumption that the majority of dissolved solids in water are ionic.

The TDS is calculated using a conversion factor, typically between 0.5 and 1.0, depending on the specific ionic composition of the sample. In this method, the sample is subjected to evaporation, where the dissolved solids are left behind as residue, but modern instruments use direct electrical conductivity measurement and apply a constant conversion factor for quick TDS determination.

Both tests require careful calibration of the instruments using standard solutions to ensure the accuracy and precision of the readings.

The procedures also typically involve the measurement of the temperature, as conductivity is temperature-dependent, and corrections are applied to maintain consistency across varying temperatures.

Nikopharmad Conductivity Testing Laboratory

Accreditation and Global Recognition

At Nikopharmad, our Conductivity Testing services are backed by ISO/IEC 17025 certification and ILAC accreditation, ensuring full compliance with internationally recognized standards of analytical quality and technical competence. These prestigious credentials confirm that our conductivity testing data meet the highest global regulatory requirements, accepted by health authorities and regulatory bodies worldwide.

Our laboratory is recognized for its expertise in delivering accurate and reliable results for a variety of industries, including pharmaceuticals, environmental monitoring, and industrial processes.

Technical Excellence and Validated Infrastructure

Nikopharmad’s state-of-the-art laboratory is equipped with advanced, precision-controlled instruments, including calibrated conductivity meters and specialized testing systems. We follow validated methodologies, such as ASTM D1125, ISO 7888, and other industry standards, to provide highly reliable and reproducible conductivity measurements.

With precise temperature control and stringent calibration protocols, our testing procedures ensure accurate conductivity results for diverse samples, ranging from pure water to industrial solutions. Our infrastructure is designed to meet the rigorous demands of clients in highly regulated sectors, ensuring that all testing is performed with the utmost precision.

Regulatory-Ready Reporting and Timely Results

In the fast-evolving regulatory landscape, timely and dependable results are essential. Nikopharmad is committed to providing rapid delivery of conductivity testing results without sacrificing accuracy. Our streamlined testing process and robust quality assurance protocols guarantee complete documentation, including traceable raw data, statistical analysis, and regulatory submission-ready final reports. Our results are fully aligned with international regulatory bodies such as the FDA, EMA, and other global entities, ensuring that your data meets the necessary compliance standards for successful product approvals.

Confidentiality and Data Integrity

At Nikopharmad, the confidentiality and security of your data are of the highest priority. All conductivity testing is conducted under strict confidentiality agreements, supported by 21 CFR Part 11-compliant electronic data systems. We follow rigorous protocols to ensure the integrity of all test data, maintaining a complete audit trail and adhering to ethical handling practices for test materials. Our commitment to data protection ensures that your sensitive information remains secure throughout the entire testing process.

Competitive Pricing with Uncompromised Quality

Understanding the need for cost-effective testing in product development, Nikopharmad offers competitive pricing for conductivity testing services. Our flexible pricing structure is designed to accommodate the needs of startups, SMEs, and multinational companies. By offering exceptional value without compromising on quality, we help accelerate your product development and regulatory approval processes, supporting your goals at every stage while maintaining the highest standards of accuracy and compliance.

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Partner with Nikopharmad for Expert Conductivity Testing

Choosing Nikopharmad for your conductivity testing needs means partnering with a globally accredited laboratory that upholds scientific excellence, regulatory compliance, and client confidentiality. Whether testing water purity, industrial fluids, or pharmaceutical formulations, our conductivity testing expertise ensures fast, reliable, and internationally recognized results. Nikopharmad is your ideal partner for efficient, compliant market access, helping you meet the stringent requirements of global regulatory authorities.