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SRM 2193a Calcium Carbonate pH Standard [used as saturated Ca(OH)2 solution]

SRM 2193a Calcium Carbonate pH Standard [used as saturated Ca(OH)2 solution] - This Standard Reference Material (SRM) is intended for use in preparing solutions for calibrating electrodes for pH measuring systems at pH values above 11.0. This lot of calcium carbonate (CaCO3) was selected for its low level of alkali metal impurities. However, this SRM is certified ONLY as a pH standard, NOT as a pure substance. A unit of SRM 2193a consists of 30 g of CaCO3. This data is public in the Certificate of Analysis for this material.

About this Dataset

Updated: 2022-07-29
Metadata Last Updated: 2016-09-29
Date Created: N/A
Views:
Data Provided by:
National Institute of Standards and Technology
Dataset Owner: N/A

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Table representation of structured data
Title SRM 2193a Calcium Carbonate pH Standard [used as saturated Ca(OH)2 solution]
Description SRM 2193a Calcium Carbonate pH Standard [used as saturated Ca(OH)2 solution] - This Standard Reference Material (SRM) is intended for use in preparing solutions for calibrating electrodes for pH measuring systems at pH values above 11.0. This lot of calcium carbonate (CaCO3) was selected for its low level of alkali metal impurities. However, this SRM is certified ONLY as a pH standard, NOT as a pure substance. A unit of SRM 2193a consists of 30 g of CaCO3. This data is public in the Certificate of Analysis for this material.
Modified N/A
Publisher Name National Institute of Standards and Technology
Contact mailto:srms@nist.gov
Keywords Biosciences and Health , Environment and Climate , Food and Nutrition
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        "fn": "Steven J. Choquette"
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    "description": "SRM 2193a Calcium Carbonate pH Standard [used as saturated Ca(OH)2 solution] - This Standard Reference Material (SRM) is intended for use in preparing solutions for calibrating electrodes for pH measuring systems at pH values above 11.0. This lot of calcium carbonate (CaCO3) was selected for its low level of alkali metal impurities. However, this SRM is certified ONLY as a pH standard, NOT as a pure substance. A unit of SRM 2193a consists of 30 g of CaCO3. This data is public in the Certificate of Analysis for this material.",
    "language": [
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    "title": "SRM 2193a Calcium Carbonate pH Standard [used as saturated Ca(OH)2 solution]",
    "license": "https:\/\/www.nist.gov\/open\/license",
    "bureauCode": [
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    "modified": "2016-09-29 00:00:00",
    "publisher": {
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        "name": "National Institute of Standards and Technology"
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    "accrualPeriodicity": "irregular",
    "theme": [
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    "keyword": [
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        "Food and Nutrition"
    ]
}

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