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Standards

Projects/Programs

Keyword

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Intended Impact Modern mass spectrometers commonly generate ions by electrospray mass spectrometry which are separated and then fragmented by collisional dissociation. This process yields fragment ion ‘fingerprints’ (or mass spectra) that are widely used to identify the individual components in a...

Thermoelectric Measurements

Ongoing

Thermoelectric effects enable the inter-conversion of thermal and electrical energy, with applications that include solid-state waste heat recovery in engines for automotive and industrial manufacturing; power generation for aerospace, non-terrestrial exploration, and remote sensing; and...

Thin Film RGTMs

Ongoing

Research Grade Test Materials (RGTMs) are a type of pre-standard developed by NIST as part of the development of Standard Reference Materials and as feedstock for Interlaboratory Studies. NIST is producing a series of thin film RGTMs for use in thin film characterization inter-comparison and as...

Tissue Engineering

Ongoing

Tissue Engineering Measurands: Tissue engineering measurands are confusing to discuss and a charting method to improve communication is demonstrated. Measurement Assurance Strategies for Regenerative Medicine: Reliable methods for assessing product consistency and quality. Regenerative Medicine...

Traceability in Molecular Spectrophotometry

Ongoing

This program, sometimes referred to as the Optical Filters program, has supported the development, certification, and (as specified) recertification of Standard Reference Materials ® (SRMs ®) for the verification of the transmittance (absorbance) and wavelength scales of spectrophotometers in the...

Photography of gas cylinder storage facility with cylinders stored horizontally in movable cabinets.

Traceable Calibration Gases: SRMs, NTRMs, and Protocol Gases

Ongoing

The Gas Sensing Metrology Group prepares the highest level gas standards, known as Primary Standard Gas Mixtures based on precise gravimetric methods and accurate purity analysis. These Primary Standards are verified at NIST, stability confirmed through reanalysis over many years, and compared...

Exploded cross section diagram representing the simplified structure layers in a MOSFET transistor.

Transport Property Measurements for Semiconductors and Energy Materials

Ongoing

The image above is an exploded cross section diagram representing the simplified structure layers in a MOSFET transistor. Thermoreflectance (TR) laser-based measurement techniques, a key focus of this project, can measure the thermal properties of substrates, thin films, multilayer structures, and...

Trusted AI framework for a new class of Standard Reference Materials and Data with exquisitely characterized uncertainty for billions of properties

Ongoing

The measurement of diverse molecular classes in biospecimens containing millions of molecules, known as omics, is increasingly important in the life sciences and medicine, and used to find novel cancer therapeutics, discover COVID-19 infection pathways, and diagnose diseases. NIST RMs and SRDs for...

Vitamin D Metabolites Quality Assurance Program (VitDQAP)

Completed

Interlaboratory comparison studies of the VitDQAP supported the reliability of vitamin D measurements, including determination of 25-hydroxyvitamin D2, 25-hydroxyvitamin D3, and 3- epi-25-hydroxyvitamin D3 in human serum and plasma. Results from the comparison studies helped participants to make...

X-ray computed tomography (CT) for medical applications

Completed

As scale lengths get smaller, diffraction becomes increasingly prominent in tomography. The work here develops diffraction tomography for laboratory sources. A new laboratory scale instrument at NIST/Boulder is dedicated to tomography of integrated circuit interconnects. Tomography software written...

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Reference materials

Projects/Programs

Tandem Mass Spectral Library

Thermoelectric Measurements

Thin Film RGTMs

Tissue Engineering

Traceability in Molecular Spectrophotometry

Traceable Calibration Gases: SRMs, NTRMs, and Protocol Gases

Transport Property Measurements for Semiconductors and Energy Materials

Trusted AI framework for a new class of Standard Reference Materials and Data with exquisitely characterized uncertainty for billions of properties

Vitamin D Metabolites Quality Assurance Program (VitDQAP)

X-ray computed tomography (CT) for medical applications

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