1、Designation:E319118Standard Specification forPermanent Foaming Fixatives Used to Mitigate Spread ofRadioactive Contamination1This standard is issued under the fixed designation E3191;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,th
2、e year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification is intended to provide a basis foridentification of non-removable permanent foaming fixativesa
3、s a long-term measure used to immobilize or isolate radioac-tive contamination,or both,minimize worker exposure,and toprotect uncontaminated areas against the spread of radioactivecontamination.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses ar
4、e mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,hea
5、lth,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of Internat
6、ional Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:E3105 Specification for Permanent Coatings Used to Miti-gate Spread of Radioactive ContaminationE2420 Guide for Post-Deactivation Surve
7、illance and Main-tenance of Radiologically Contaminated Facilities3.Terminology3.1 Definitions:3.1.1 complete pouring,npouring of a sufficient volumeof a foaming fixative to entirely fill a desired 3-dimensionalvoid space.3.1.2 contamination,nradioactive material in an un-wanted location.3.1.3 envir
8、onmental conditions,nexternal factors thatmay contribute to the performance of the coating including,butnot limited to,temperature,humidity,and ventilation.3.1.4 incremental pouring,npouring of fresh materialonto a previously applied cured layer of the same material.3.1.5 long-term measure,ngreater
9、than six months.3.1.6 lower flammability limit(LFL),nthe lower end ofthe concentration range over which a flammable mixture of gasor vapor in air can be ignited at a given temperature andpressure.3.1.7 mechanical deterioration,nbreakdown of the mate-rials mechanical attributes to the point that it i
10、s no longer ableto retain 95%of fixated or isolated contamination,or both.3.1.8 permanent foaming fixative,na non-removable,du-rable foaming product capable of filling variable sized regularand irregular 3-dimensional void spaces used to physicallyisolate or chemically hold or bind radioactive parti
11、culate.3.1.9 waste acceptance criteria(WAC),nthe criteria that amaterial must meet for acceptance in a waste disposal site;these criteria may vary per disposal site.3.1.10 working time,nthe time period between the open-ing of the material storage container or mixing of componentsuntil the prepared m
12、aterial can no longer be successfullyapplied to a surface.4.Significance and Use4.1 This specification establishes performance specifica-tions for permanent foaming fixatives that are intended toimmobilize or isolate,or both,dispersible contamination de-posited within a void space as might result fr
13、om anticipated tounanticipated events to include normal operating conditions,decommissioning,and radiological release.4.2 The foaming fixative is intended to be a permanent,non-removable,long-term material used for decommissioningand operations.It is intended to isolate the contamination fromactive
14、working areas.It may also enable reduction in buildingrequirements such as induced airflow or negative air pressure.1This test method is under the jurisdiction of ASTM Committee E10 on NuclearTechnology and Applications and is the direct responsibility of SubcommitteeE10.03 on Radiological Protectio
15、n for Decontamination and Decommissioning ofNuclear Facilities and Components.Current edition approved Dec.1,2018.Published December 2018.DOI:10.1520/E3191-18.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was d
16、eveloped in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 4.3 The foaming fixative is intended to be used for fillingcontaminated 3-dimensional void spaces of various volumesthat would be difficult to otherwise coat with conventional2-dimensional fixatives.4.4 The foaming fi
