• Organization: Department of the Interior
• Updated: 2024-04-12T00:00:00Z

Optical sensors measuring fluorescence of dissolved organic matter (fDOM) are increasingly used in water quality studies because they provide proxy measurements for a variety of contaminants and...

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• Organization: Department of the Interior
• Updated: 2021-03-31T00:00:00Z

This dataset provides the expected and determined concentrations of selected inorganic and organic analytes for spiked reagent-water samples (calibration standards and limit of quantitation...

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• Organization: U.S. Department of Health & Human Services
• Updated: 2025-09-06

This document focuses on how the prevalence estimates and their standard errors were derived from the 2008 to 2012 MHSS clinical sample. In particular, it describes how the prevalence estimates...

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• Organization: National Institute of Standards and Technology
• Updated: 2017-01-04 00:00:00

SRM 3239 Isoflavones Calibration Solution - This Standard Reference Material (SRM) is intended primarily for use in calibration of instruments and techniques used for the determination of...

• 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: 2017-01-05 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 Aeronautics and Space Administration
• Updated: 2025-07-17

The eight color asteroid survey provides reflection spectra for minor planets using eight filter passbands. A system of standard stars was established to aid in the calibration of the ECAS...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

The eight color asteroid survey provides reflection spectra for minor planets using eight filter passbands. A system of standard stars was established to aid in the calibration of the ECAS...

• 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: 2016-09-14 00:00:00

This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of cerium. A unit of SRM 3110 consists of five 10 mL sealed...

• Organization: National Institute of Standards and Technology
• Updated: 2016-09-14 00:00:00

This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of silver. A unit of SRM 3151 consists of five 10 mL sealed...

• Organization: National Institute of Standards and Technology
• Updated: 2016-09-14 00:00:00

This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of thallium. A unit of SRM 3158 consists of five 10 mL sealed...

• Organization: National Institute of Standards and Technology
• Updated: 2016-09-14 00:00:00

This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of mercury. A unit of SRM 3133 consists of five 10 mL sealed...

• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

Photometric calibration for 2MASS was performed using observations of calibration fields made at regular intervals during each night of survey operations. Measurements of standard stars in the...

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• Organization: National Institute of Standards and Technology
• Updated: 2016-09-14 00:00:00

This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of vanadium. A unit of SRM 3165 consists of five 10 mL sealed...

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

SRM 194a Ammonium Dihydrogen Phosphate - This Standard Reference Material (SRM) is a highly purified and homogeneous lot of crystalline ammonium dihydrogen phosphate (NH4H2PO4). It is intended...

• Organization: Department of the Interior
• Updated: 2021-12-16T00:00:00Z

The data described in this metadata record are no longer available. Please see the process steps for more details. Calibration of hydraulic models require careful selection of input parameters to...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

Photometric calibration for 2MASS was performed using observations of calibration fields made at regular intervals during each night of survey operations. Measurements of standard stars in the...

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

This Standard Reference Material (SRM) is intended as a primary calibration standard for the quantitative determination of bromide using anion ion chromatography (IC) or other methods. A unit of...

• 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...