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    ASTM C911 - 19

    Standard Specification for Quicklime, Hydrated Lime, and Limestone for Selected Chemical and Industrial Uses

    Active Standard ASTM C911 | Developed by Subcommittee: C07.02

    Book of Standards Volume: 04.01

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    This specification covers lime and limestone products that are suitable for chemical and industrial uses such as in waste acid neutralization, agricultural liming, soil stabilization, asphalt, flue gas desulfurization, drinking water softening, waste and wastewater neutralization, and wastewater treatment plant residuals stabilization. The required chemical composition of quicklime, hydrated lime, and limestone for each selected end use are on the bases of the weight sample taken at the place of manufacture. Quicklime should be free of unslakable residues and should be capable of disintegrating in water to form suspensions of finely divided material.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers lime and limestone products suitable for the following chemical and industrial uses:

    Cooking rags

    Sulfite pulp

    Silica brick

    Other water treatment uses

    Calcium carbide


    Calcium silicate products

    Hypochlorite (bleach)

    The following uses are addressed in other ASTM standards:



    Neutralization of Waste Acid (Test Methods)


    Agricultural Liming Materials


    Soil Stabilization




    Flue Gas Desulfurization (Test Methods)


    Drinking Water Softening


    Waste and Wastewater Neutralization


    Wastewater Treatment Plant Residuals (Biosolids) Stabilization

    C1529 and D6249

    1.2 The type designations in Table 1 signify the following:

    Limestone, high-calcium—CL

    Limestone, dolomitic—DL

    Limestone, magnesian—ML

    Quicklime, high-calcium—CQ

    Quicklime, dolomitic—DQ

    Quicklime, magnesian—MQ

    Hydrated lime, high-calcium—CH

    Hydrated lime, dolomitic—DH

    Hydrated lime, magnesian—MH

    1.3 The buyer shall designate the use, as listed in Table 1, and may specify one or more of the type designations in 1.1.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

    1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    C25 Test Methods for Chemical Analysis of Limestone, Quicklime, and Hydrated Lime

    C50 Practice for Sampling, Sample Preparation, Packaging, and Marking of Lime and Limestone Products

    C110 Test Methods for Physical Testing of Quicklime, Hydrated Lime, and Limestone

    C400 Test Methods for Quicklime and Hydrated Lime for Neutralization of Waste Acid

    C602 Specification for Agricultural Liming Materials

    C977 Specification for Quicklime and Hydrated Lime for Soil Stabilization

    C1097 Specification for Hydrated Lime for Use in Asphalt Cement or Bituminous Paving Mixtures

    C1318 Test Method for Determination of Total Neutralizing Capability and Dissolved Calcium and Magnesium Oxide in Lime for Flue Gas Desulfurization (FGD)

    C1529 Specification for Quicklime, Hydrated Lime, and Limestone for Environmental Uses

    D6249 Guide for Alkaline Stabilization of Wastewater Treatment Plant Residuals

    ICS Code

    ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)

    UNSPSC Code

    UNSPSC Code 11111608(Limestone); 30111604(Hydrated lime)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/C0911-19

    Citation Format

    ASTM C911-19, Standard Specification for Quicklime, Hydrated Lime, and Limestone for Selected Chemical and Industrial Uses, ASTM International, West Conshohocken, PA, 2019, www.astm.org

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