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• Data for: Intra versus inter fiber variability in mechanical properties of high-performance fibersThe mechanical performance of fibrous composites relies on the component properties, including the fibers. In many composites, fibers constitute the primary load-bearing component, which has led to a significant scientific interest in the investigation and cha
  TXTZIPUpdated 05/12/2026
• Reference model for lithium-based traction battery recoveryReference functional model for the activities and processes involved in recovering traction lithium batteries at the end of their use/life. The model includes inputs and outputs of each activity, as well as factors that constrain and enable the activities (con
  TXTUpdated 05/05/2026
• OWM Info Hours: OWM Study Results on the Use of Portable Digital Density Meters as Field Inspection DevicesThe NIST Office of Weights and Measures (OWM) hosts a series of Information Hours, or "Info Hours," that feature insights on topics relevant to legal metrology and documentary standards through an informal technical discussion and Question and Answer forum. In
  TXTUpdated 05/01/2026Irregularly
• NIST/NIJ Characterized Authentic Drug Sample (CADS) ProjectDevelopment and validation of new analytical or data tools for seized drug analysis require demonstration of the approach's ability to accurately detect the components of complex, realistic drug mixtures. However, gaining access to these types of samples, or t
  TXTPDFZIPUpdated 04/21/2026
• SRM 2921a Human Cardiac Troponin ComplexSRM 2921a electronic files containing the certified values and uncertainties and the data used to assign those values. The concentration of human cardiac troponin I (cTnI) in SRM 2921a was certified using an LC-MS method with calibrants prepared from SRM 2921.
  XLSXTXTUpdated 04/21/2026Irregularly
• Data for "Millimeter Wave Readout of a Superconducting Qubit"Experimental data and simulation code and data for figures for the manuscript "Millimeter Wave Readout of a Superconducting Qubit", which has been submitted for publication and available as a preprint on arXiv (https://doi.org/10.48550/arXiv.2603.13837).
  HDFTXTXLSUpdated 04/21/2026
• Replicate Gas Chromatography Mass Spectrometry Data of Seized Drug StandardsThis dataset contains replicate extracted mass spectra of 330+ drug standards collected using gas chromatography electron ionization mass spectrometry (GC-EI-MS). There are ten replicate mass spectra for each compound - five spectra collected on two different
  ZIPXMLUpdated 04/20/2026Irregularly
• X-ray Computed Tomography Experiments and Simulations of an Advanced Integrated Circuit PackageX-ray computed tomography (XCT) is a nondestructive method that uses multiple X-ray projections to create detailed 3D internal models of materials without damaging them. In the semiconductor industry, XCT is used for failure analysis, quality control, and proc
  TXTCSVZIPTIFFUpdated 04/17/2026
• NIST DART-MS Forensics Database (is-CID)The NIST DART-MS Forensics Database is an evaluated collection of in-source collisionally-induced dissociation (is-CID) mass spectra of compounds of interest to the forensics community (e.g. seized drugs, cutting agents, etc.). The is-CID mass spectra were col
  ZIPUpdated 04/14/2026Irregularly
• X-ray Absorption and Resonant X-ray Emission at the Carbon Edge of Li2CO3Data and input files for "X-ray Absorption and Resonant X-ray Emission at the Carbon Edge of Li_2CO_3". Contents: 1. Inputs and outputs for calculations of ground-state DFT & GW are in the the ABI directory 2. Inputs and outputs for the MD simulations are in t
  TXTZIPUpdated 04/14/2026Irregularly
• Two-color measurements supporting a revised formulation for the refractive index of airData and analysis supporting the article "Two-color measurements supporting a revised formulation for the refractive index of air," by PF Egan in Measurement Science and Technology (2026). The measured data are in the files "data-GASNAME-2color.csv" where GASN
  TXTZIPUpdated 04/13/2026Irregularly
• Data associated with "Resolving magnetic-sublevel structure in Rydberg Autler-Townes spectra with arbitrary RF polarization"We investigate the role of magnetic sublevels in Autler-Townes spectra of Rydberg atoms driven by radio-frequency (RF) fields with arbitrary polarization. While conventional treatments predict two symmetric sidebands from independent $m_J$ transitions, experim
  TXTCSVUpdated 04/13/2026Irregularly
• LQMetric/OpenLQM Quality of NIST Special Database 302hThis dataset contains the LQMetric and OpenLQM quality component values for the latent impression distal phalanx images of NIST Special Database (SD) 302h. OpenLQM is an open-source reimplementation of LQMetric, designed to keep computed values between the two
  CSVUpdated 04/10/2026Irregularly
• Data for A Switchable Longitudinal & Shear BLS Microscope for Comprehensive Modulus Imaging of Semiconductor Packaging MaterialsThis dataset contains Brillouin light scattering (BLS) measurements collected using a custom-built switchable microscope and spectrometer platform. The microscope has two configurations: 1) a backscattered mode for high resolution longitudinal BLS measurements
  TXTUpdated 04/03/2026
• Data for Revealing Statistically Robust Strain Rate Effects on the Mechanical Performance of Pristine Single Fiber AramidsThis dataset consists of experimental data from testing high strength fibers under four quasi-static rates (QS) on a single fiber test machine and under high-strain rate (HSR) on a single fiber Kolsky bar. Two poly-paraphenylene terephthalamide (PPTA) aramid f
  TXTXLSXUpdated 04/02/2026
• Demo Codebase for agentic-research-measurement-probesAn agentic AI measurement tool for deep research over local corpora of PDF and Markdown documents. Given a research question, it orchestrates a programmatic AI pipeline to exhaustively evaluate, synthesize, and verify information from your documents, producing
  Updated 03/26/2026Irregularly
• polysr: use cases demonstrating the utility of symbolic regression for polymeric data"polysr: Symbolic Regression applied to Polymeric Use Cases" is a GitHub repository that demonstrates the utility of symbolic regression for understanding polymer data. Specifically, three distinct use cases are considered. The Robust to Noise use case demonst
  Updated 03/26/2026
• Repository for NIST-EPA Legionella study Python tools.Repository for NIST-EPA Legionella study Python tools. Includes scripts for aerosol particle size distribution analysis, emission-rate calculations, data cleaning, visualization, and statistical modeling of shower-generated aerosols under varying temperature,
  MARKDOWNUpdated 03/20/2026Irregularly
• Building 423 IAQ Manufactured House (MH) DAQ - Automated Data Acquisition and Backup SystemPython-based automation system for the NIST Building 423 Manufacturing House IAQ test facility. Provides incremental backups of instrumentation data, weather station logs, and thermostat telemetry to mission network storage with detailed error logging, retry l
  Updated 03/20/2026Irregularly
• Data for manuscript "Integrated optical isolators for broadband multi-laser operation"Theoretical calculation, modeling and experimental measurement data for the paper "Integrated optical isolators for broadband multi-laser operation" accepted for publication in Nature Photonics (2026) Abstract: Photonic integrated circuits commonly feature vis
  TXTCSVUpdated 03/20/2026Irregularly
• Contingency: a python library for fast, vectorized metrology with binary contingency counts.With this tool, users can rapidly calculate binary classifier metrics like Matthew's Correlation Coefficient, F-Scores, and Average Precision Scores from scalar and binary predictions. It is primarily used to calculate threshold sensitivity studies, and has se
  GIT REPOSITORYUpdated 03/19/2026Irregularly
• LC-MS/MS and GC-MS Measurements of Extractables and Leachables (E&L) from Polymeric MaterialsThis mass spectrometry (MS) data set encompasses spectra of the extractables and leachables (E&L) of 100 polymer materials sourced from the Scientific Polymer Products Inc Polymer Samples Kit (see: SciPoly_PolymerSampleKit205_Items.xlsx). Extractions of these
  TXTZIPXLSXUpdated 03/19/2026Irregularly
• SRM 927g Bovine Serum Albumin (7% Solution) (Total Protein Standard) DataElectronic files containing the certified value(s) and uncertainty(ies), and the data used to assign the value(s). Data are provided for amino acid analysis measurements that were used to determine the certified value for BSA concentration. Data for density me
  TXTXLSXUpdated 03/16/2026Irregularly
• Low-field hyperpolarized MRI studies of cellphone-band microwave propagation and absorption through tissue mimicsHyperpolarized low-Field MRI data of cellphone-band microwave radiation in tissue mimics with associated electromagnetic and simulation data
  TXTCSVUpdated 03/11/2026
• Understanding the Risk of Lithium Ion Battery FiresLithium ion battery (LIB) fires are a growing problem that extends across the supply chain, including mining, production, warehousing, shipping, and waste disposal, as well as the consumer side. But data on such fires is fragmented and mostly incomplete. Many
  MARKDOWNUpdated 03/10/2026Irregularly