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ASTM D5919-96(2022)

(Practice)

Standard Practice for Determination of Adsorptive Capacity of Activated Carbon by a Micro-Isotherm Technique for Adsorbates at ppb Concentrations

Standard Practice for Determination of Adsorptive Capacity of Activated Carbon by a Micro-Isotherm Technique for Adsorbates at ppb Concentrations

SIGNIFICANCE AND USE
5.1 This practice allows the adsorption capacity at equilibrium of an activated carbon for adsorbable constituents present in water to be determined. The Freundlich K and 1/n constants that can be calculated based upon information collected using this practice can be used to estimate carbon loading capacities and usages rates for the constituent present in a water stream at other concentrations.
SCOPE
1.1 This practice covers the assessment of activated carbon for the removal of low concentrations of adsorbable constituents from water and wastewater using the bottle point isotherm technique. It can be used to characterize the adsorptive properties of virgin and reactivated activated carbons.  
1.2 This practice can be used in systems with constituent concentrations in the low milligrams per litre or micrograms per litre concentration ranges.  
1.3 This practice can be used to determine the adsorptive capacity of and Freundlich constants for volatile organic compounds provided the handling procedures described in this practice are followed carefully.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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.

General Information

Status
Published
Publication Date
31-Aug-2022
ICS
13.030.40 - Installations and equipment for waste disposal and treatment
13.060.30 - Sewage water
Technical Committee
D28 - Activated Carbon
Drafting Committee
D28.02 - Liquid Phase Evaluation
Current Stage
Ref Project

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ASTM D5919-96(2022) - Standard Practice for Determination of Adsorptive Capacity of Activated Carbon by a Micro-Isotherm Technique for Adsorbates at ppb ConcentrationsASTM D5919-96(2022) - Standard Practice for Determination of Adsorptive Capacity of Activated Carbon by a Micro-Isotherm Technique for Adsorbates at ppb Concentrations
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ASTM D5919-96(2022) - Standard Practice for Determination of Adsorptive Capacity of Activated Carbon by a Micro-Isotherm Technique for Adsorbates at ppb Concentrations
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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.
Designation: D5919 − 96 (Reapproved 2022)
Standard Practice for
Determination of Adsorptive Capacity of Activated Carbon
by a Micro-Isotherm Technique for Adsorbates at ppb
1
Concentrations
This standard is issued under the fixed designation D5919; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D1193Specification for Reagent Water
D2652Terminology Relating to Activated Carbon
1.1 This practice covers the assessment of activated carbon
D2867Test Methods for Moisture in Activated Carbon
for the removal of low concentrations of adsorbable constitu-
D3370Practices for Sampling Water from Flowing Process
entsfromwaterandwastewaterusingthebottlepointisotherm
Streams
technique. It can be used to characterize the adsorptive
properties of virgin and reactivated activated carbons.
3. Terminology
1.2 This practice can be used in systems with constituent
3.1 Definitions:
concentrations in the low milligrams per litre or micrograms
3.1.1 Fordefinitionsoftermsusedinthispracticerelatingto
per litre concentration ranges.
activated carbon, refer to Terminology D2652.
1.3 This practice can be used to determine the adsorptive
3.1.2 Fordefinitionsoftermsusedinthispracticerelatingto
capacity of and Freundlich constants for volatile organic
water, refer to Terminology D1129.
compounds provided the handling procedures described in this
practice are followed carefully.
4. Summary of Practice
1.4 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this 4.1 This practice consists of the determination of the ad-
standard.
sorptive capacity of activated carbon for adsorbable constitu-
ents by contacting the aqueous solution contained in an
1.5 This standard does not purport to address all of the
essentially zero headspace container with activated carbon,
safety concerns, if any, associated with its use. It is the
determining the amount of the constituents removed, and
responsibility of the user of this standard to establish appro-
calculating the adsorptive capacity and the Freundlich
priate safety, health, and environmental practices and deter-
constants, K and 1/n, from a Freundlich isotherm plot.
mine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accor- 4.1.1 The weights of activated carbon used in this practice
dance with internationally recognized principles on standard-
may have to be adjusted to achieve reasonable levels of
ization established in the Decision on Principles for the removal of the constituent. The best data is obtained when
Development of International Standards, Guides and Recom-
carbondosagesareselectedthatresultinnomorethan90%or
mendations issued by the World Trade Organization Technical nolessthan10%oftheadsorbableconstituentsbeingremoved
Barriers to Trade (TBT) Committee.
from the water by the carbon.
4.1.2 If carbon dosages used are less than 1 mg, larger
2. Referenced Documents
volumes of the aqueous solution may be used, such as
2
2.1 ASTM Standards:
1000mL.
D1129Terminology Relating to Water
5. Significance and Use
1
This practice is under the jurisdiction of ASTM Committee D28 on Activated
Carbon and is the direct responsibility of Subcommittee D28.02 on Liquid Phase
5.1 This practice allows the adsorption capacity at equilib-
Evaluation.
riumofanactivatedcarbonforadsorbableconstituentspresent
Current edition approved Sept. 1, 2022. Published October 2022. Originally
in water to be determined.The Freundlich K and 1/n constants
approved in 1996. Last previous edition approved in 2017 as D5919–96 (2017).
DOI: 10.1520/D5919-96R22.
that can be calculated based upon information collected using
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
this practice can be used to estimate carbon loading capacities
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
andusagesratesfortheconstituentpresentinawaterstreamat
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. other concentrations.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5919 − 96 (2022)
6. Interferences pollutantanalysis,hotwateranddetergentwash,reagentgrade
water, and solvent (high purity methanol) rinse followed by a
6.1 The water shall not contain a
...

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SCOPE
1.1 This guide establishes the means and frequency of monitoring the neutron exposure of the LWR reactor pressure vessel throughout its operating life.  
1.2 The physics-dosimetry relationships determined from this guide may be used to estimate reactor pressure vessel damage through the application of Practice E693 and Guide E900, using fast neutron fluence (E > 1.0 MeV and E > 0.1 MeV), displacements per atom (dpa), or damage-function-correlated exposure parameters as independent exposure variables. Supporting the application of these standards are the E853, E944, E1005, and E1018 standards, identified in 2.1.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

  • Guide
    12 pages
    English language
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  • Guide
    12 pages
    English language
    sale 15% off