ASTM D5029-98(2014)
(Test Method)Standard Test Method for Water Solubles in Activated Carbon
Standard Test Method for Water Solubles in Activated Carbon
SIGNIFICANCE AND USE
5.1 In certain applications, the ash, color, conductivity, or pH of the finished activated carbon product may be influenced by the quantity of water solubles it contains. This water solubles test provides a relative indication of the quantity of soluble materials that may be extracted from various activated carbons.
SCOPE
1.1 This test method covers the determination of the water soluble content of (unused) granular and powdered activated carbons. Water solubles are materials that can be extracted by distilled water under reflux conditions and are expressed as a percentage of dry carbon weight.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D5029 − 98 (Reapproved 2014)
Standard Test Method for
Water Solubles in Activated Carbon
This standard is issued under the fixed designation D5029; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope conditions. This extraction is performed using the method and
apparatus described in Test Method D3838. After extraction,
1.1 This test method covers the determination of the water
thecarbonisseparatedbyfiltrationandanaliquotofthefiltrate
soluble content of (unused) granular and powdered activated
is evaporated to dryness. Water solubles are determined by
carbons. Water solubles are materials that can be extracted by
weighing the dry residue and expressing the result as a
distilled water under reflux conditions and are expressed as a
percentage of the dry carbon weight.
percentage of dry carbon weight.
1.2 The values stated in SI units are to be regarded as 5. Significance and Use
standard. No other units of measurement are included in this
5.1 In certain applications, the ash, color, conductivity, or
standard.
pH of the finished activated carbon product may be influenced
1.3 This standard does not purport to address all of the
by the quantity of water solubles it contains. This water
safety concerns, if any, associated with its use. It is the
solubles test provides a relative indication of the quantity of
responsibility of the user of this standard to establish appro-
soluble materials that may be extracted from various activated
priate safety and health practices and determine the applica-
carbons.
bility of regulatory limitations prior to use.
6. Apparatus and Materials
NOTE 1—All volumetric measuring equipment should meet or exceed
2. Referenced Documents
the requirements of National Institute of Standards and Technology
2.1 ASTM Standards:
Circular 602, Testing of Glass Volumetric Apparatus, available from the
D1193 Specification for Reagent Water
National Institute of Standards andTechnology, Gaithersburg, MD 20899.
Volumetric glassware meeting these specifications is generally designated
D2652 Terminology Relating to Activated Carbon
as Class A.
D2867 Test Methods for Moisture in Activated Carbon
6.1 Flask, 250 mL with 24/40 ST (standard taper) neck.
D3838 Test Method for pH of Activated Carbon
E177 Practice for Use of the Terms Precision and Bias in
6.2 Condenser, with 24/40 inner ST (standard taper) joint.
ASTM Test Methods
6.3 Buchner Funnel, 9 or 12.5 cm.
E300 Practice for Sampling Industrial Chemicals
6.4 Filter Paper, Ashless, (;5 to 10 µm particle retention).
3. Terminology
6.5 Glass or Porcelain Evaporating Dishes, 100 mL capac-
3.1 Definitions— Terms relating to this standard are defined
ity.
in Terminology D2652.
6.6 Analytical Balance, precision 0.1 mg.
4. Summary of Test Method 6.7 Drying Oven.
4.1 A known weight of activated carbon is placed into a 6.8 Desiccator.
reflux apparatus with Type II reagent water (see Specification
6.9 Hot Plate.
D1193). The mixture is refluxed for 15 min under specified
6.10 Pipet, 50 mL.
6.11 Indicating Desiccant.
This test method is under the jurisdiction of ASTM Committee D28 on
6.12 Water, ASTM Type II or better, in accordance with
ActivatedCarbonandisthedirectresponsibilityofSubcommitteeD28.02onLiquid
Phase Evaluation.
Specification D1193, Type II.
Current edition approved July 1, 2014. Published September 2014. Originally
6.13 Thermometer, approximately 20 to 55°C.
approved in 1989. Last previous edition approved in 2009 as D5029 – 98 (2009).
DOI: 10.1520/D5029-98R14.
6.14 Steam Bath, optional.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.15 Beakers, 250 mL.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.16 Graduated Cylinder, 100 mL.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D5029 − 98 (2014)
6.17 Laboratory Timer. 8.13 Make two determinations on each carbon sample
tested.
6.18 Filter Flasks, vacuum, 500 mL.
9. Calculation
7. Sampling
9.1 The following equation is used for a general calculation
7.1 Conducted sampling according to Practice E300.
of water solubles:
8. Procedure
8.1 Determine the moisture content of the carbon in accor-
~B 2 A!~D!~100!
Water Solubles, % 5 (1)
dance with Test Method D2867.
C E
~ !~ !
8.2 Weigh a sample of ca
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D5029 − 98 (Reapproved 2009) D5029 − 98 (Reapproved 2014)
Standard Test Method for
Water Solubles in Activated Carbon
This standard is issued under the fixed designation D5029; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the determination of the water soluble content of (unused) granular and powdered activated carbons.
Water solubles are materials that can be extracted by distilled water under reflux conditions and are expressed as a percentage of
dry carbon weight.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
D1193 Specification for Reagent Water
D2652 Terminology Relating to Activated Carbon
D2867 Test Methods for Moisture in Activated Carbon
D3838 Test Method for pH of Activated Carbon
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E300 Practice for Sampling Industrial Chemicals
3. Terminology
3.1 Definitions— Terms relating to this standard are defined in Terminology D2652.
4. Summary of Test Method
4.1 A known weight of activated carbon is placed into a reflux apparatus with Type II reagent water (see Specification D1193).
The mixture is refluxed for 15 min under specified conditions. This extraction is performed using the method and apparatus
described in Test Method D3838. After extraction, the carbon is separated by filtration and an aliquot of the filtrate is evaporated
to dryness. Water solubles are determined by weighing the dry residue and expressing the result as a percentage of the dry carbon
weight.
5. Significance and Use
5.1 In certain applications, the ash, color, conductivity, or pH of the finished activated carbon product may be influenced by the
quantity of water solubles it contains. This water solubles test provides a relative indication of the quantity of soluble materials
that may be extracted from various activated carbons.
6. Apparatus and Materials
NOTE 1—All volumetric measuring equipment should meet or exceed the requirements of National Institute of Standards and Technology Circular 602,
Testing of Glass Volumetric Apparatus, available from the National Institute of Standards and Technology, Gaithersburg, MD 20899. Volumetric glassware
meeting these specifications is generally designated as Class A.
6.1 Flask, 250 mL with 24/40 ST (standard taper) neck.
This test method is under the jurisdiction of ASTM Committee D28 on Activated Carbon and is the direct responsibility of Subcommittee D28.02 on Liquid Phase
Evaluation.
Current edition approved April 1, 2009July 1, 2014. Published May 2009September 2014. Originally approved in 1989. Last previous edition approved in 20042009 as
D5029 – 98 (2004).D5029 – 98 (2009). DOI: 10.1520/D5029-98R09.10.1520/D5029-98R14.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D5029 − 98 (2014)
6.2 Condenser, with 24/40 inner ST (standard taper) joint.
6.3 Buchner Funnel, 9 or 12.5 cm.
6.4 Filter Paper, Ashless, (;5 to 10 μm particle retention).
6.5 Glass or Porcelain Evaporating Dishes, 100 mL capacity.
6.6 Analytical Balance, precision 0.1 mg.
6.7 Drying Oven.
6.8 Desiccator.
6.9 Hot Plate.
6.10 Pipet, 50 mL.
6.11 Indicating Desiccant.
6.12 Water, ASTM Type II or better, in accordance with Specification D1193, Type II.
6.13 Thermometer, approximately 20 to 55°C.
6.14 Steam Bath, optional.
6.15 Beakers, 250 mL.
6.16 Graduated Cylinder, 100 mL.
6.17 Laboratory Timer.
6.18 Filter Flasks, vacuum, 500 mL.
7. Sampling
7.1 Conducted sampling according to Practice E300.
8. Procedure
8.1 Determine the moisture content of the carbon in accordance with Test Method D2867.
8.2 Weigh a sample of carbon equivalent to 10.00 6 0.01 g on a dry basi
...
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