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NIST Traceability: Ensuring Precision in Measurements
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NIST's Role: NIST maintains national standards for the seven base units of the International System of Units (SI), governed by standards such as ISO/IEC 17025.
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Traceability in Calibrations: A NIST traceable calibration involves maintaining a comprehensive record of the measurement process, connecting a series of calibrations back to the specified reference standard in accordance with NIST Special Publication 250.
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Tektronix Calibrations: Calibrations performed by Tektronix within the United States are NIST traceable, in compliance with ISO 9001 and ISO/IEC 17025. These calibrations are conducted in accordance with NIST standards to ensure precision in measurements.
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International Calibrations: Calibrations completed outside the United States are traceable to the relevant national metrology institute, adhering to international standards such as ISO/IEC 17025.
Metrological Traceability
Metrological traceability refers to the measurement result which can be related through an unbroken chain of calibrations, including measurement uncertainty determination, to specified references. It is a basic assurance that a relationship exists between the measurement results of a measurement instrument and the value of a measurement standard. Tektronix standards are traceable directly to the SI Units | NIST, which is the most widely used international system of measurement responsible for defining the meter, kilogram, second, ampere, kelvin, mole, and candela.
How Traceability Impacts Global Markets
Traceability of measurement results to the SI makes it possible to achieve the accuracy, precision and interchangeability required for global trade markets. To deliver truly standardized components, industry depends upon reliable and consistent measurements that are traceable to a recognized measurement system such as the International System of Units.
ISO Compliance
Traceability is particularly important to companies that must comply with or follow the requirements of International Organization for Standardization (ISO) standard(s). ISO requirements often require that test, measurement and control equipment be traceable to recognized national or international standards. Other organizations may voluntarily follow the requirements of ISO so that they can claim ISO compliance for their product. This compliance is normally an indication of an organization’s commitment to service and/or quality.
