Referansemidler

Referansemidler, also known as reference media or reference materials, are standardized substances, materials, or instruments that are used to compare and validate the accuracy, precision, and reliability of analytical methods, instruments, and processes. They play a crucial role in ensuring the quality and consistency of measurements in various fields, including chemistry, biology, medicine, and engineering.

Reference materials can be categorized into different types based on their intended use. Certified reference materials (CRMs) are the most common type, which have been thoroughly characterized and certified by a competent body. They are used to calibrate instruments, validate methods, and assess the performance of laboratories. In-house reference materials are prepared by individual laboratories for their specific needs, while primary reference materials are the highest quality materials that are used to calibrate other reference materials.

The use of referansemidler is essential for maintaining the accuracy and reliability of measurements. They help to minimize errors, ensure consistency, and facilitate the comparison of results between different laboratories and instruments. In addition, they are often used in regulatory compliance, quality control, and research and development.

The production and certification of reference materials are governed by international standards, such as ISO Guide 34 and ISO Guide 35, to ensure their quality and traceability. Organizations like the National Institute of Standards and Technology (NIST) in the United States and the European Commission's Joint Research Centre (JRC) are responsible for producing and certifying reference materials for various applications.