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class="nist-block" > <!-- nist-index-ignore-start --> <div data-elastic-exclude class="nist-block nist-social__wrapper"> <h2 class="nist-social__title">Share</h2> <div class="social-media-sharing"> <div class="nist-social__wrapper--share"> <div> <a target="_blank" rel="noopener" href="https://www.facebook.com/share.php?u=https://www.nist.gov/services-resources/standards-and-measurements" title="Facebook" class="nist-social nist-social--facebook-gray"> <span>Facebook</span> </a> </div> <div> <a target="_blank" rel="noopener" href="https://www.linkedin.com/shareArticle?mini=true&url=https://www.nist.gov/services-resources/standards-and-measurements&source=https://www.nist.gov/services-resources/standards-and-measurements" title="Linkedin" class="nist-social nist-social--linkedin-gray"> <span>Linkedin</span> </a> </div> <div> <a target="_blank" rel="noopener" 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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="/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://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="/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="/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. 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