Standards & Measurements

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They:</p> <ul><li>provide a common language to measure and evaluate performance,</li> <li>make interoperability of components made by different companies possible, and</li> <li>protect consumers by ensuring safety, durability, and market equity.</li> </ul><p>NIST’s portfolio of services for measurements, standards, and legal metrology provides solutions that ensure measurement traceability, enable quality assurance, and harmonize documentary standards and regulatory practices. The tools, information, and training provided by NIST, and the contributions and results produced by its staff, lead to advancements in research and technological innovation that foster the drivers of the U.S. economy: invention, improvement, and commercialization.</p> <h2><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="d731b841-8e78-4fd4-9e23-8c9a41e30b3b" href="/web/20230204030401/https://www.nist.gov/calibrations" title="Calibrations">Calibration Services</a></h2> <p>NIST provides calibration services to disseminate the primary physical measurement standards for the U.S. for commerce, industry, and research. Calibration services allow customers to achieve the highest quality in their measurement systems, and to provide assurance in their results, by communicating the NIST measurement results for carefully selected instruments and artifacts.</p> <h2>Conformity Assessment</h2> <p>Conformity assessment is the demonstration that specified requirements relating to a product, process, system, person or body are fulfilled. Conformity assessment can include: supplier’s declaration of conformity, sampling and testing, inspection, certification, management system assessment and registration, the accreditation of the competence of those activities, and recognition of an accreditation program’s capability. Under the National Technology Transfer and Advancement Act (NTTAA), NIST is assigned responsibility to coordinate federal, state, and local documentary standards and conformity assessment activities.</p> <ul><li><a href="https://web.archive.org/web/20230204030401/https://www.govinfo.gov/content/pkg/FR-2000-08-10/pdf/00-20262.pdf">Guidance on Federal Conformity Assessment Activities</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="299ea1f6-59ca-4645-a8df-cac8964080e2" href="/web/20230204030401/https://www.nist.gov/standardsgov/national-voluntary-conformity-assessment-systems-evaluation-nvcase" title="National Voluntary Conformity Assessment Systems Evaluation (NVCASE)">National Voluntary Conformity Assessment System Evaluation</a> (NVCASE)</li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="e1e059d6-c5af-443d-974c-faa6ec719b6e" href="/web/20230204030401/https://www.nist.gov/nvlap" title="National Voluntary Laboratory Accreditation Program (NVLAP)">National Voluntary Laboratory Accreditation Program</a> (NVLAP)</li> </ul><h2>Documentary Standards</h2> <p>Documentary standards can specify definition of terms; classifications of components; delineation of procedures; specification of dimensions, materials, processes, products, systems, services or practices; test methods and sampling procedures; or descriptions of fit and measurements of size or strength. Under the National Technology Transfer and Advancement Act (NTTAA), NIST is assigned responsibility to coordinate federal, state, and local documentary standards and conformity assessment activities.</p> <ul><li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="92cb2812-889e-4c18-a2a6-b190bfb128bf" href="/web/20230204030401/https://www.nist.gov/standardsgov" title="Standards.gov">Standards.gov</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="9f18c5d5-f23f-4a81-86ae-db4088b6a296" href="/web/20230204030401/https://www.nist.gov/standardsgov/what-we-do/federal-policy-standards" title="Federal Policy on Standards">Federal Use of Standards</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="4576fe38-11ee-4b01-98ff-3cccadef67c1" href="/web/20230204030401/https://www.nist.gov/standardsgov/what-we-do/federal-policy-standards/sibr-database" title="Standards Incorporated by Reference">Standards Incorporated by Reference</a> (SIBR)</li> </ul><h2><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="e1e059d6-c5af-443d-974c-faa6ec719b6e" href="/web/20230204030401/https://www.nist.gov/nvlap" title="National Voluntary Laboratory Accreditation Program (NVLAP)">Laboratory Accreditation</a></h2> <p>The National Voluntary Laboratory Accreditation Program (NVLAP) provides third-party accreditation to testing and calibration laboratories in response to legislative actions or requests from government agencies or private-sector organizations. NVLAP-accredited laboratories are assessed against the management and technical requirements published in the International Standard, ISO/IEC 17025:2017.</p> <ul><li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="4ef060be-9972-458d-a551-b815d02224ff" href="/web/20230204030401/https://www.nist.gov/nvlap/about-nvlap" title="About NVLAP">About NVLAP</a></li> <li><a href="https://web.archive.org/web/20230204030401/https://www-s.nist.gov/niws/index.cfm?event=directory.search#no-back">Directory of NVLAP-Accredited Laboratories</a></li> <li><a href="https://web.archive.org/web/20230204030401/https://www-s.nist.gov/niws/index.cfm?event=productlist.search#no-back">Search for Test Methods & Calibration Parameters</a></li> </ul><h2><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="8c64bed9-a554-4519-867f-e6943143f039" href="/web/20230204030401/https://www.nist.gov/nist-quality-system" title="NIST Quality System">NIST Quality System for Measurement Services</a></h2> <p>The NIST Quality System underpins the provision of measurement services: Calibrations and Special Tests, Standard Reference Materials, and Standard Reference Data products. The NIST quality system for measurement services is internationally recognized and meets the requirements of the International Committee for Weights and Measures (CIPM) Mutual Recognition Arrangement (MRA) for recognition of national measurement standards. As such, the NIST quality system is recognized as conformant to the ISO/IEC 17025, ISO 17034 and ISO 17043 by the Inter-American Metrology System (SIM) Quality System Task Force and the Joint Committee of the Regional Metrology Organizations and the BIPM (JCRB). The BIPM is the International Bureau of Weights and Measures.</p> <ul><li><a data-entity-substitution="canonical" data-entity-type="media" data-entity-uuid="8a3e8e25-5dd6-45a2-915b-afdcbc95d457" href="/web/20230204030401/https://www.nist.gov/document/nistqm-i-v11controlledandsignedpdf" title="nist_qm-i-v11_controlled_and_signed.pdf" class="media-link-ga " data-file-url="https://www.nist.gov/system/files/documents/2019/04/09/nist_qm-i-v11_controlled_and_signed.pdf">NIST Quality Manual</a></li> </ul><h2><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="addd9cc9-89c5-4d36-9ced-c68e2d22081f" href="/web/20230204030401/https://www.nist.gov/srd" title="Standard Reference Data">Standard Reference Data</a> (SRD)</h2> <p>For more than 50 years, NIST has developed and distributed Standard Reference Data. 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