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ASTM D 3803 : 1991 : R2009

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Nuclear-Grade Activated Carbon
Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

04-01-2009

CONTAINED IN VOL. 15.01, 2017 Defines a very stringent procedure for establishing the capability of new and used activated carbon to remove radio-labeled methyl iodide from air and gas streams.

1.1 This test method is a very stringent procedure for establishing the capability of new and used activated carbon to remove radio-labeled methyl iodide from air and gas streams. The single test method described is for application to both new and used carbons, and should give test results comparable to those obtained from similar tests required and performed throughout the world. The conditions employed were selected to approximate operating or accident conditions of a nuclear reactor which would severely reduce the performance of activated carbons. Increasing the temperature at which this test is performed generally increases the removal efficiency of the carbon by increasing the rate of chemical and physical absorption and isotopic exchange, that is, increasing the kinetics of the radioiodine removal mechanisms. Decreasing the relative humidity of the test generally increases the efficiency of methyl iodide removal by activated carbon. The water vapor competes with the methyl iodide for adsorption sites on the carbon, and as the amount of water vapor decreases with lower specified relative humidities, the easier it is for the methyl iodide to be adsorbed. Therefore, this test method is a very stringent test of nuclear-grade activated carbon because of the low temperature and high relative humidity specified. This test method is recommended for the qualification of new carbons and the quantification of the degradation of used carbons.

1.1.1 Guidance for testing new and used carbons using conditions different from this test method is offered in Annex A1.

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.

Committee
D 28
DocumentType
Test Method
Pages
18
ProductNote
Reconfirmed 2009
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 4069 : 1995 : R2014 Standard Specification for Impregnated Activated Carbon Used to Remove Gaseous Radio-Iodines from Gas Streams

ASTM D 2652 : 2011 : REDLINE Standard Terminology Relating to Activated Carbon
MIL-STD-45662 Revision A:1988 CALIBRATION SYSTEMS REQUIREMENTS
MIL-F-51079 Revision D:1985 FILTER MEDIUM, FIRE RESISTANT, HIGH EFFICIENCY
MIL-F-51068 Revision F:1986 FILTERS, PARTICULATE (HIGH-EFFICIENCY FIRE RESISTANT)
CFR 49(PTS100-185) : 0 TRANSPORTATION

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