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1169 results found

SRM 2197, Lot LL-198 Low-Energy Charpy V-Notch Specimens (Self-Verification, 2 mm Striker)

Data provided by  National Institute of Standards and Technology

NIST self-verification Charpy specimens, such as from lot LL-198 here considered, are used by companies around the world to perform an indirect verification of a Charpy impact machine in accordance with with ASTM E23 and ISO 148-2. Customers test between 5 and 7 samples and compare their average value with the reference absorbed energy from the NIST certification tests, provided in a certificate. If within the specified limits (which depend on the reference test standard), their verification can be considered successful.

Tags: Hardness,impact,Charpy,

Modified: 2025-04-06

1,2,3,4,5,6,7,8-Octahydroanthracene: Experimental and Derived Thermodynamic Properties

Data provided by  National Institute of Standards and Technology

This document is part of a series of reports describing experimental property measurements completed at the National Institute for Petroleum and Energy Research (NIPER) in Bartlesville, Oklahoma, in the 1980s and 1990s. Members of the Bartlesville Thermodynamics Group included William D. "Bill" Good, William V. "Bill" Steele, Bruce E. Gammon, Norris K. Smith, Stephen E. Knipmeyer, An "Andy" Nguyen, Timothy D. Klots, I. A. "Alex" Hossenlopp, Aaron P. Rau, William B. Collier, John F. Messerly, Ann G. Osborn, Susan Lee Bechtold, Donald G. Archer, Ian R.

Tags: density,vapor pressure,enthalpy of formation,heat capacity,thermodynamic functions,

Modified: 2025-04-06

Forecasting demand data for critical materials

Data provided by  National Institute of Standards and Technology

Clean energy technologies (e.g., solar, wind, EVs) are vital in our transition to a decarbonized energy grid. Many clean energy technologies rely on critical materials that are prone to supply chain risks. As the demand for clean energy technologies grows, so will the demand for these critical materials. Anticipating critical material market dynamics becomes crucial for change makers in developing effective strategies to scale up the implementation of clean energy generating technologies.

Tags: Bass Diffusion Model; market dynamics; Cobalt,gallium,indium,

Modified: 2025-04-06

Dioptra Test Platform

Data provided by  National Institute of Standards and Technology

Source code, documentation, and examples of use of the source code for the Dioptra Test Platform.Dioptra is a software test platform for assessing the trustworthy characteristics of artificial intelligence (AI). Trustworthy AI is: valid and reliable, safe, secure and resilient, accountable and transparent, explainable and interpretable, privacy-enhanced, and fair - with harmful bias managed1.

Tags: AI; Trustworthy AI; Test; Evaluation; Adversarial Machine Learning; Machine Learning; TEVV,

Modified: 2025-04-06

RGTM 10235: Forensic DNA Resource Samples Data

Data provided by  National Institute of Standards and Technology

RGTM 10235 is composed of eight well-quantified DNA extracts. Samples include three single-source samples, two degraded samples, and three mixture samples. RGTM 10235 allows the community to publicly share data generated, results of methods examined, and genetic profiles due to their informed consent.The capillary electrophoresis (CE) data which is hosted here was generated by NIST on a 3500xL Genetic Analyzer from Applied Biosystems with a 36 cm capillary array and POP-4 polymer.

Tags: forensic,DNA,Capillary Electrophoresis,STR,standard,Research Grade Test Material (RGTM),

Modified: 2025-04-06

SRM 1548b Typical Diet

Data provided by  National Institute of Standards and Technology

SRM 1548b electronic files containing the non-certified value and uncertainty, and the data used to assign that value. Certificate date 24 June 2024: Non-certified value for glyphosate added to Table A3; silicon value of potential interest moved to appendix B; updated format; editorial changes.

Tags: nutrition,food,elements,proximates,sugars,amino acids,fatty acids,

Modified: 2025-04-06

SRM 3122 Lot 230104 Hafnium (Hf) Standard Solution Data

Data provided by  National Institute of Standards and Technology

SRM 3122 Lot 230104 electronic files containing the certified value and uncertainty, and the data used to assigned that value.

Tags: Hf,hafnium,spectrometry,single element solutions,pure materials,cations,metals,7440-58-6,

Modified: 2025-04-06

2-Hydroxybiphenyl: Experimental and Derived Thermodynamic Properties

Data provided by  National Institute of Standards and Technology

This document is part of a series of reports describing experimental property measurements completed at the National Institute for Petroleum and Energy Research (NIPER) in Bartlesville, Oklahoma, in the 1980s and 1990s. Members of the Bartlesville Thermodynamics Group included William D. "Bill" Good, William V. "Bill" Steele, Bruce E. Gammon, Norris K. Smith, Stephen E. Knipmeyer, An "Andy" Nguyen, Timothy D. Klots, I. A. "Alex" Hossenlopp, Aaron P. Rau, William B. Collier, John F. Messerly, Ann G. Osborn, Susan Lee-Bechtold, Donald G. Archer, Ian R.

Tags: density,vapor pressure,enthalpy of formation,heat capacity,thermodynamic functions,

Modified: 2025-04-06

Measurement Quality Metrics to Improve Absolute Microbial Cell Counting

Data provided by  National Institute of Standards and Technology

This repository contains the raw data and analysis scripts supporting the associated publication which introduces a framework to help researchers select fit-for-purpose microbial cell counting methods and optimize protocols for quantification of microbial total cells and viable cells. Escherichia coli cells were enumerated using four methods (colony forming unit assay, impedance flow cytometry - Multisizer 4, impedance flow cytometry - BactoBox, and fluorescent flow cytometry - CytoFLEX LX) and repeated on multiple dates.

Tags: Microbial; Measurement Quality Metric; Viability; Cell Counting,

Modified: 2025-04-06

Evaluation of static and dynamic magnetic properties of CoFeB versus thickness

Data provided by  National Institute of Standards and Technology

The enclosed dataset includes measurements of a thickness series of CoFeB thin film samples that were deposited at the NIST Magnetic Engineering Research Facility using magnetron sputtering. The thickness-dependent magnetic properties of CoFeB have significant technological relevance for predicting the read/write energy and speed of spin-transfer-torque magnetoresistive random access memory devices, which employ a nm-thick CoFeB film as the data storage layer.

Tags: ferromagnetic resonance,MRAM,magnetism,ferromagnetism,thin film,

Modified: 2025-04-06