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SRM 2690 Coal Fly Ash

Metadata Updated: September 30, 2025

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 for the determination of constituent elements in coal fly ash or materials of a similar matrix. A unit of SRM 2690 consists of three 10 g hermetically sealed glass vials of fly ash pulverized to less than 150 ?m particle size and blended to a high degree of homogeneity. This data is public in the Certificate of Analysis for this material.

Access & Use Information

Public: This dataset is intended for public access and use. License: See this page for license information.

Downloads & Resources

Dates

Metadata Created Date November 12, 2020
Metadata Updated Date September 30, 2025
Data Update Frequency irregular

Metadata Source

Harvested from Commerce Non Spatial Data.json Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date September 30, 2025
Publisher National Institute of Standards and Technology
Maintainer
Identifier 4765EE7CC5BBA396E0531A57068160031664
Language en
Data Last Modified 2017-01-05 00:00:00
Category Standards:Reference materials
Public Access Level public
Data Update Frequency irregular
Bureau Code 006:55
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 3255ec66-b84b-4af2-ab7d-904eac9c8a13
Harvest Source Id bce99b55-29c1-47be-b214-b8e71e9180b1
Harvest Source Title Commerce Non Spatial Data.json Harvest Source
Homepage URL https://www-s.nist.gov/srmors/view_detail.cfm?srm=2690
License https://www.nist.gov/open/license
Program Code 006:052
Source Datajson Identifier True
Source Hash 231271b63bd7c2e4904b385126d1327c37ebda825aa61b30cef70861bae14335
Source Schema Version 1.1

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