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This seminar provides an overview and and details of time and frequency metrology. It focuses on fundamental concepts, measurement techniques, metrological traceability, and data and measurement uncertainty analysis. Lecture topics covered will include: · Fundamentals of Time and Frequency and basic terminology · Quartz Oscillators · Atomic Oscillators (rubidium, cesium, and hydrogen maser) Laboratory Instrumentation · Measuring Frequency Accuracy in the Time Domain Estimating Stability with the Allan deviation and related statistics · Stopwatch and Timer Calibrations Traceability · Uncertainty Analysis for time and frequency calibrations · GPS/GNSS and GNSS-Disciplined Clocks and Oscillators · The Network Time Protocol (NTP) · Applications of Time and Frequency Measurements (telecommunications, electric power, stock market trading) For additional technical information, contact Andrew Novick (303) 497-3378 or novick@nist.gov

This full day tutorial will cover the fundamentals of internal auditing based on the ISO 19011:2018 Guidelines for auditing management systems standard. The course will also include the applicable requirements of ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories, so you can ensure that you have a solid audit program in place that complies with your accreditation body and/or customer requirements. The course will start with general auditing principles and will cover critical auditing elements such as audit planning, preparation, conduct, key auditor attributes, audit techniques, documentation of audit findings, and audit closing activities. A critical element in the operation of every laboratory is metrological traceability. This course will delve deeper into the specifics of how to appropriately audit metrological traceability and the associated requirements of the ISO standards, customer requirements, and/or the requirements of your accreditation body. The tutorial will define what metrological traceability is, what requirements need to be considered, and how you specifically audit your laboratory to ensure you have appropriate metrological traceability. Without metrological traceability, you can’t have confidence in your measurement results. You can’t just rely on a statement that results are traceability to the international system of units (SI) as your means of auditing metrological traceability. This course will help you to confirm that you have appropriately established metrological traceability to support the results that are provided to your customers. The tutorial will include instruction, group exercises, and group discussions. Learning Objectives: - List at least two reasons for performing an internal audit - Describe at least five attributes of an effective auditor - Describe the internal audit planning and process - Identify objective evidence - Explain the concepts of metrological traceability - Compare calibration certificates against requirements of ISO/IEC 17025 - Use auditing tools to demonstrate the chain of traceability