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• Organization: National Institute of Standards and Technology
• Updated: 2016-09-06 00:00:00 | Harvested: June 27, 2025 at 07:05 PM

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: Department of the Interior
• Updated: 20200820 | Harvested: July 18, 2025 at 01:53 AM

This data release presents high-spatial resolution geochemical analyses collected from Mesoproterozoic apatite crystals in igneous rocks from the St. Francois Mountains terrane and coeval ore...

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• Organization: National Institute of Standards and Technology
• Updated: 2015-09-04 00:00:00 | Harvested: June 27, 2025 at 07:05 PM

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 | Harvested: June 27, 2025 at 07:01 PM

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: 2017-01-05 00:00:00 | Harvested: June 27, 2025 at 07:01 PM

Standard Reference Material 2689 Coal Fly Ash - This Standard Reference Material (SRM) is intended for use in the evaluation of analytical methods used for the classification of coal fly ash and...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00 | Harvested: June 27, 2025 at 07:01 PM

Standard Reference Material 2690 Coal Fly Ash - This Standard Reference Material (SRM) is intended for use in the evaluation of analytical methods used for the classification of coal fly ash and...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00 | Harvested: June 27, 2025 at 07:01 PM

Standard Reference Material 2691 Coal Fly Ash - This Standard Reference Material (SRM) is intended for use in the evaluation of analytical methods used for the classification of coal fly ash and...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00 | Harvested: June 27, 2025 at 07:02 PM

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 | Harvested: June 27, 2025 at 07:02 PM

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: 2016-09-06 00:00:00 | Harvested: June 27, 2025 at 07:00 PM

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: 2017-01-06 00:00:00 | Harvested: June 27, 2025 at 07:00 PM

SRM 1953 Organic Contaminants in Non-Fortified Human Milk - This Standard Reference Material (SRM) is intended for use in evaluating analytical methods for the determination of selected...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00 | Harvested: June 27, 2025 at 07:05 PM

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: Department of the Interior
• Updated: 20240503 | Harvested: July 16, 2025 at 07:01 AM

This data release contains elemental concentration data from the reanalysis of 13,930 archived stream-sediment sample and associated stream sediment reference material and 968 archived rock...

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• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00 | Harvested: June 27, 2025 at 06:59 PM

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: 2015-08-27 00:00:00 | Harvested: June 27, 2025 at 06:59 PM

SRM 1546a Meat Homogenate - This Standard Reference Material (SRM) is intended primarily for validation of methods for determining fatty acids, cholesterol, proximates, calories, elements,...

• Organization: National Institute of Standards and Technology
• Updated: 2016-09-02 00:00:00 | Harvested: June 27, 2025 at 07:05 PM

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: 2015-09-04 00:00:00 | Harvested: June 27, 2025 at 07:00 PM

SRM 1950 Metabolites in Frozen Human Plasma - This Standard Reference Material (SRM) is intended primarily for validation of methods for determining metabolites such as fatty acids, electrolytes,...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00 | Harvested: June 27, 2025 at 07:01 PM

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...

• Organization: National Institute of Standards and Technology
• Updated: 2017-01-05 00:00:00 | Harvested: June 27, 2025 at 07:01 PM

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 | Harvested: June 27, 2025 at 07:01 PM

Standard Reference Material 2693 Bituminous Coal (Nominal Mass Fraction 0.5 % Sulfur) - This Standard Reference Material (SRM) is intended primarily for use in the evaluation of techniques...