1、Designation: D 4069 95 (Reapproved 2003)Standard Specification forImpregnated Activated Carbon Used to Remove GaseousRadio-Iodines from Gas Streams1This standard is issued under the fixed designation D 4069; the number immediately following the designation indicates the year oforiginal adoption or,
2、in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This standard covers the specifications for physicalproperties and performance r
3、equirements of virgin impreg-nated activated carbon to be used for the removal of gaseousradioiodine species from gas streams.1.2 The values stated in SI units are to be regarded as thestandard.2. Referenced Documents2.1 ASTM Standards:2D 2652 Terminology Relating to Activated CarbonD 2854 Test Meth
4、od for Apparent Density of ActivatedCarbonD 2862 Test Method for Particle Size Distribution ofGranular Activated CarbonD 2866 Test Method for Total Ash Content of ActivatedCarbonD 2867 Test Method for Moisture in Activated CarbonD 3466 Test Method for Ignition Temperature of GranularActivated Carbon
5、D 3802 Test Method for Ball-Pan Hardness of ActivatedCarbonD 3803 Test Method for Nuclear-Grade Activated CarbonD 3838 Test Method for pH of Activated CarbonE 300 Practice for Sampling Industrial Chemicals2.2 ANSI/ASME Standard:NQA-1 Quality Assurance Program Requirements forNuclear Facilities33. Te
6、rminology3.1 DefinitionsDefinitions relating to this specification aregiven in Terminology D 2652.3.2 Definitions of Terms Specific to This Standard: Descrip-tions of Terms Specific to This Standard:3.2.1 lota quantity of impregnated activated carbon of thesame grade or type, consisting of one or mo
7、re batches, that hasbeen produced under the same manufacturers production orderusing the same manufacturing procedure and equipment.3.2.2 batcha quantity of impregnated activated carbon ofthe same grade or type that has been produced using the samemanufacturing procedures and equipment, and that has
8、 beenhomogenized so as to exhibit the same physical properties andperformance characteristics throughout its mass.NOTE 1The maximum allowable batch size shall be 10 m.3.2.3 qualification testa one-time test performed on eachof three grab samples taken randomly from a single homog-enized batch of a v
9、endors grade or type of impregnatedactivated carbon to determine its suitability for the purposestated herein. The size of each grab sample should be at least500 cm.43.2.4 batch testa test performed on a representativesample of each batch of the same grade or type of impregnatedactivated carbon to d
10、etermine whether that batch meets thespecification prescribed herein.3.2.5 grade or typethe manufacturers designation for animpregnated activated carbon having a given set of perfor-mance capabilities and physical properties.4. Materials and Manufacture4.1 The activated carbon furnished under this s
11、pecificationshall be virgin material. Reactivated carbon shall not be used.4.2 Impregnated activated carbon furnished under thisspecification shall be subject to the document control provi-sions of Section 7 of ANSI NQA-1.4.3 Materials used in the manufacture of impregnated-activated carbon furnishe
12、d under this specification shall betraceable as provided in Section 9 of ANSI NQA-1.1This specification is under the jurisdiction of ASTM Committee D28 onActivated Carbon and is the direct responsibility of Subcommittee D28.04 on GasPhase Evaluation Tests.Current edition approved Oct. 1, 2003. Publi
13、shed Dec. 2003. Originally approvedin 1981. Last previous edition approved in 1998 as D 4069 95 (1998).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards
14、 Document Summary page onthe ASTM website.3Available from the American National Standards Institute, Inc., 11 W. 42nd St.13th Floor, New York, NY 10036.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5. Significance and Use5.1 Activa
15、ted carbons used in containment systems fornuclear reactors must be capable of functioning under bothnormal operating conditions and those conditions which mayexist following a design basis accident (DBA). Adsorbent bedsthat are part of recirculatory systems inside containment maybe exposed to the p
16、eak pressure, temperature, and steamcontent of a post-DBA condition.5.2 Carbon beds outside containment will be protected byfast-acting shutoff valves from the sudden rise in pressure,temperature, and humidity of the containment atmospherewhich would exist following a DBA. However, some rise intempe
17、rature and humidity will be experienced even by bedsoutside containment if they are reconnected to containmentafter the initial pressure rise (due to escape of steam into thecontainment volume) has been reduced by containment cool-ers. The amount of radioactivity that can reach either type ofadsorpt
18、ion system is conceivably quite high; hence, there is apossibility of a bed temperature rise due to decay heating. Thegaseous radioactive contaminants of most interest are organiciodides. In this test, CH3I is used to typify the performance ofthe carbon on organic iodine compounds in general. The te
19、stdescribed here provide a reasonable picture of the effectivenessof an activated carbon for organic iodides under normal andpost-DBA conditions. The equipment and methods describedcan be used, with discretion, for similar tests at different gasflow conditions and, to some extent, on different gaseo
20、usradioactive contaminants and other adsorbents.6. Homogeneity Requirement6.1 A batch shall be considered homogeneous if the appar-ent density of each of three grab samples differs by no morethan 63.0 % from the average value of all three determina-tions. Failure of this test requires rehomogenizati
21、on.7. Performance Requirements7.1 Each batch of impregnated activated carbon shall con-form to the following performance requirement: use the Methyliodide efficiency test (See Test Method D 3803), at 30C, 95 %relative humidity, and a minimum percent specification of97.0 %.8. Physical Properties Requ
22、irements8.1 Each batch of impregnated activated carbon shall con-form to the requirements for physical properties prescribed inTable 1.9. Sampling9.1 A representative sample shall be obtained from eachbatch using the methods prescribed in Practice E 300 inquantity sufficient to perform all of the te
23、sts prescribed hereinin triplicate. A 2-L sample is usually sufficient.10. Number of Tests and Retests10.1 Each batch test specified in Section 8 and Table 1 shallbe performed at least once on each batch of carbon unless thetest method prescribes a greater number of tests.10.2 If a single test from
24、10.1 fails to meet the specificationvalue, the test may be repeated two additional times. Theaverage of the three determinations shall meet the specifica-tion. In addition, the coefficient of variation, n, for the threedeterminations shall not exceed 65.0 %:where:n = 100 s/ X %,s =(13X2X!22% efficie
25、ncy units,X = percent efficiency units, individual sample, andX = percent efficiency units, average of three samples.11. Test Methods11.1 The test program shall conform to the test controlrequirements of Section 12 of ANSI NQA-1.11.2 The test methods used to determine the physicalproperties and perf
26、ormance capability of the sample shall bethose prescribed in Section 8 and Table 1.12. Quality Assurance and Inspection12.1 The producer or supplier of impregnated activatedcarbon furnished under this specification shall comply with theapplicable Quality Assurance Requirements of ANSI NQA-1as identi
27、fied by the users specification.12.2 Inspection of the impregnated activated carbon shall beagreed upon between the user and the supplier as part of thepurchase contract.13. Rejection and Rehearing13.1 Impregnated activated carbon that fails to conform tothe requirements of this specification shall
28、be rejected. Rejec-tion shall be reported to the producer or supplier promptly andin writing. In case of dissatisfaction with the results of the test,the producer or supplier may make claim for a rehearing.14. Certification14.1 The producer or supplier shall certify to the user asfollows:14.1.1 The
29、impregnated-activated carbon comprising the lotwas produced using the same manufacturing procedure andequipment as that used to produce the impregnated activatedcarbon submitted for the original qualification tests. TheTABLE 1 Physical PropertiesTest Test Method SpecificationApparent density D 2854
30、0.38 g/mL, minParticle size distribution,ASTM E-11 Sieves:D 2862Retained on No. 6 0.1 %, maxRetained on No. 8 5.0 %, maxThrough No. 8, Retainedon No. 1260.0 %, maxThrough No. 12, Retainedon No. 1640.0 %, minThrough No. 16 5.0 %, maxThrough No. 18 1.0 %, maxAsh contentAD 2866 State valueMoisture cont
31、ent D 2867 State valueIgnition temperature D 3466 330C, minBall-pan hardness D 3802 92.0 %, minpH D 3838 State valueAThis test to be performed on the base carbon prior to impregnation.D 4069 95 (2003)2producer or supplier shall furnish a copy of the qualificationtest results to the user.14.1.2 The i
32、mpregnated activated carbon furnished to theuser was manufactured, sampled, tested, and inspected inaccordance with this specification and has been found to meetthe requirements of Sections 1 through 16 hereof. The produceror supplier shall furnish a copy of the batch test results to theuser.15. Pac
33、kaging15.1 The impregnated activated carbon shall be packaged ina durable container in such a way as to minimize degradationof the particles during handling, shipping, and storage. Thecontainer shall be provided with a vapor barrier in order tominimize the adsorption of water and organic vapors afte
34、rpackaging.16. Package Marking16.1 Each package shall be clearly and indelibly marked toshow the producers or suppliers name, trade name, andimpregnated activated carbon type or grade number; lot, batch,and drum number; gross and net weights of the package; andthe number of this specification.17. Ve
35、rification17.1 The user shall sample each batch of impregnatedactivated carbon comprising the lot furnished hereunder usingthe procedures prescribed herein, and perform or have per-formed those tests necessary to verify the certification of theproducer or supplier. As a minimum, the verification tes
36、tprogram shall include the determination of the methyl iodidedecontamination efficiency at 30C and 95 % relative humidity(Section 7), and ignition temperature (Test 5, Table 1). Theverifying laboratory shall test the impregnated carbon inaccordance with this specification and shall report the actual
37、test results to the user in writing.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the ris
38、kof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of thi
39、s standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake
40、your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D 4069 95 (2003)3
