• Organization: Department of the Interior
• Updated: 2023-10-17T00:00:00Z

These data were collected using field portable (handheld) X-ray fluorescence (pXRF) equipped with a 4-watt Ta/Au X-ray tube on two National Institute of Standards and Technology (NIST) certified...

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• Organization: Department of Energy
• Updated: 2025-01-21T22:07:26Z

Corresponding Standard Reference Material Data used in Partial Least Squares Regression Models for Sugar Composition Estimates in Biomass in: Economic Impact of Yield and Composition Variation in...

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• Organization: National Institute of Standards and Technology
• Updated: 2023-12-22 00:00:00

This data comprises the information that was used to assign values, the assigned values themselves, and the associated uncertainties. Certificate date 20 May 2024.

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• Organization: National Institute of Standards and Technology
• Updated: 2003-11-20 00:00:00

The purpose of this project is to improve the accuracy of statistical software by providing reference datasets with certified computational results that enable the objective evaluation of...

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• Organization: Department of Agriculture
• Updated: 2025-11-22

[Note: Integrated as part of FoodData Central, April 2019.] The USDA National Nutrient Database for Standard Reference (SR) is the major source of food composition data in the United States and...

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• Organization: National Institute of Standards and Technology
• Updated: 2016-09-06 00:00:00

Standard Reference Material SRM 915c Calcium Carbonate - This Standard Reference Material (SRM) is intended for use as an analytical standard of known purity. It is intended primarily for use in...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-25 00:00:00

Standard Reference Material 131h Refined Cast Iron - This Standard Reference Material (SRM) is intended primarily for use in validation of chemical and instrumental methods of analysis. It can be...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00

Standard Reference Material 924a Lithium Carbonate - This Standard Reference Material (SRM) is intended for use as a chemical of known purity. It is intended primarily for use in the calibration...

• Organization: National Institute of Standards and Technology
• Updated: 2016-09-06 00:00:00

Standard Reference Material 200b Potassium Dihydrogen Phosphate (KH2PO4) - This Standard Reference Material (SRM) is a highly purified and homogeneous lot of crystalline potassium dihydrogen...

• Organization: National Institute of Standards and Technology
• Updated: 2016-09-02 00:00:00

Standard Reference Material 695 Trace Elements in Multi-Nutrient Fertilizer - This Standard Reference Material (SRM) is intended primarily for use in the evaluation of techniques employed in the...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-09 00:00:00

Standard Reference Material 2718a Green Petroleum Coke - This Standard Reference Material (SRM) is intended primarily for use in the calibration of apparatus and the evaluation of techniques used...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00

Standard Reference Material 2776 Sulfur in Furnace Coke - This Standard Reference Material (SRM) is intended primarily for use in the evaluation of test methods and for the calibration of...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00

Standard Reference Material 2775 Sulfur in Foundry Coke - This Standard Reference Material (SRM) is intended primarily for use in the evaluation of test methods and for the calibration of...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00

Standard Reference Material 1632d Trace Elements in Coal (Bituminous) - This Standard Reference Material (SRM) is intended primarily for use in the evaluation of techniques used in the analysis of...

• Organization: National Institute of Standards and Technology
• Updated: 2015-09-04 00:00:00

Standard Reference Material 909c Frozen Human Serum - This Standard Reference Material (SRM) is intended primarily for use in validating analytical methods for the determination of specified...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00

Standard Reference Material 2719 Calcined Petroleum Coke - This Standard Reference Material (SRM) is intended primarily for use in the calibration of apparatus and the evaluation of techniques...

• Organization: National Institute of Standards and Technology
• Updated: 2020-10-20 00:00:00

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....

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• Organization: National Institute of Standards and Technology
• Updated: 2020-10-20 00:00:00

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....

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• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00

Standard Reference Material 2684c Bituminous Coal (Nominal Mass Fraction 3 % Sulfur) - This Standard Reference Material (SRM) is intended primarily for use in the evaluation of techniques used in...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00

Standard Reference Material 2682c Subbituminous Coal (Nominal Mass Fraction 0.5 % Sulfur) - This Standard Reference Material (SRM) is intended primarily for use in the evaluation of techniques...