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    • SRM 3186 Phosphate Anion (PO43-) Standard Solution

    Metadata Updated: September 30, 2025

    This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of phosphate using anion ion chromatography (IC) or other methods. A unit of SRM 3186 consists of five 10 mL sealed borosilicate glass ampoules of solution prepared gravimetrically to contain a known mass fraction of phosphate dissolved in filtered (0.22 ?m) water having a minimum resistivity of 18 megaohm centimeters. 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

    Other Data Resources

    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 4765EE7CC5E8A396E0531A57068160031709
    Language en
    Data Last Modified 2016-09-06 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 deb6f8b7-9411-45af-bd70-007766e9298d
    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=3186
    License https://www.nist.gov/open/license
    Program Code 006:052
    Source Datajson Identifier True
    Source Hash 75e5f148a6747b87f9274dba04a71191078ce2dc9ebae8a4e6dc9d1bcffc8085
    Source Schema Version 1.1

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