ASTM-D4607 Standard Test Method for Determination of Iodine Number of Activated Carbon

ASTM-D4607 - 2014 EDITION - CURRENT
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Standard Test Method for Determination of Iodine Number of Activated Carbon
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Scope

1.1 This test method covers the determination of the relative activation level of unused or reactivated carbons by adsorption of iodine from aqueous solution. The amount of iodine absorbed (in milligrams) by 1 g of carbon using test conditions listed herein is called the iodine number.

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. Specific hazard statements are given in Section 7.

Significance and Use

4.1 The iodine number is a relative indicator of porosity in an activated carbon. It does not necessarily provide a measure of the carbon's ability to absorb other species. Iodine number may be used as an approximation of surface area for some types of activated carbons (see Test Method C819). However, it must be realized that any relationship between surface area and iodine number cannot be generalized. It varies with changes in carbon raw material, processing conditions, and pore volume distribution (see Definitions D2652).

4.2 The presence of adsorbed volatiles, sulfur; and water extractables may affect the measured iodine number of an activated carbon.

Keywords

ICS Number Code 75.160.10 (Solid fuels)

To find similar documents by ASTM Volume:

15.01 (Refractories, Activated Carbon; Advanced Ceramics)

To find similar documents by classification:

71.040.30 (Chemical reagents Including reference materials)

75.160.10 (Solid fuels Including coal products, coke, peat, wood, derivatives of coal pyrolysis, etc. Coals, see 73.040)

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Document Number

ASTM-D4607-14

Revision Level

2014 EDITION

Status

Current

Modification Type

Revision

Publication Date

June 1, 2014

Document Type

Test Method

Page Count

5 pages

Committee Number

D28.02