Reference Materials are specially prepared substances or materials used in laboratory testing to ensure accuracy and reliability of test results. Think of them like "golden standards" that labs use to compare their test results against. Just like using a ruler to measure length, labs need these trusted standards to make sure their equipment and methods are working correctly. They come in different forms, such as pure chemicals, certified solutions, or carefully prepared samples with known properties. When you see this term in resumes, it usually relates to how someone has worked with these materials to maintain quality standards in a testing laboratory.
Maintained inventory and documentation of Reference Materials for ISO 17025 compliance
Developed procedures for handling and storage of Reference Materials and Reference Standards
Managed calibration program using Reference Materials to validate test methods
Typical job title: "Laboratory Technicians"
Also try searching for:
Q: How do you ensure the proper management of reference materials in a laboratory setting?
Expected Answer: A strong answer should cover tracking systems for expiration dates, proper storage conditions, documentation procedures, and how to train staff on proper handling. They should mention quality control programs and regulatory requirements.
Q: What steps would you take if you discovered a reference material was out of specification?
Expected Answer: Should discuss investigation procedures, documentation requirements, impact assessment on past test results, corrective actions, and communication with relevant stakeholders including clients if necessary.
Q: How do you document the use of reference materials in daily testing?
Expected Answer: Should explain logging procedures, tracking usage, maintaining proper records of certificates, and understanding how these materials relate to quality control measures.
Q: What factors do you consider when selecting appropriate reference materials for a test method?
Expected Answer: Should mention considerations like accuracy requirements, matrix matching, stability, cost-effectiveness, and relevance to the specific testing being performed.
Q: What is the difference between a reference material and a certified reference material?
Expected Answer: Should explain that certified reference materials have documented property values and come with certificates, while regular reference materials may be used for general comparisons.
Q: How do you properly store and handle reference materials?
Expected Answer: Should discuss basic storage requirements like temperature control, container types, contamination prevention, and following manufacturer's instructions.