ARCHIVES HISTORIQUES
DELACOMMISSION
COLLECTION RELIEEDES
DOCUMENTS "COM"
COM(78)605
Vol.1978/0234

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COMMISSION OFTHEEUROPEAN COMMUNITIES
COM(78)605 final
Brussels ,20November 1978
,proposalforaDirective (Euratom )oftheCouncil
amending theDirective layingdownthe
BasicSafetyStandards forthehealthprotection
ofthegeneralpublicandworkers against .
thedangers ofionizingradiation
(Submitted "bytheCommissiontotheCouncil)
COM(78)605final

EXPLANATORY MEMORANDUM
TheBasicSafetyStandards forthehealthprotection ofthegeneral
publicandworkers againstthedangers ofionizingradiation werere­
visedin1976(CouncilDirective of1June1976,published inO.J.
NoL167of12July1976).Sincethen,theInternational Commission on
Radiological Protection -ascientific bodywhici ;isrecognized asan
authority throughout theworldandtowhichthoFuratom Commission
and,subsequently ,theCommission oftheEuropean Communities have
alwaysreferred forthepurpose oflayingdowntheBasicSafetyStan­
dardsforthehealthprotection ofthegeneralpublicandworkers against
thedangers ofionizingradiation-hasissuedPublication 26,published
inJune1977.
Thispublication contains acertainnumberofrecommendations
which,whilenotcallingintoquestion thefundamental principles of
radiation protection orthemannerinwhichthelatterisorganized ,
definenewconcepts andunitsandprovidethosewhosetaskitisto
protectthehealthofindividuals againstanypossible exposure risk
withanumberofnewvalues;thesevaluesareconceived inamore
coherent way,sincetheytakeaccountofnewmetabolic data,andare
calculated inamorelogicalmanner,sincetheytakeaccountforthe
firsttimeoftheadditivity oftheradiation towhichthevariousorgans
ortissues Inquestion areexposed .
Infact,thevaluesproposed differonlyslightlyfromprevious
ones.Someofthem,particularly thoserelating tothetransuranic
elements ,aregenerally morestrict.Othersareslightlylessso.The
resultisanew,morecoherent systemofcalculation whichcorresponds
morecloselytoactualbiological andmetabolic processes ;ifthelatest
scientific knowledge istobemadeuseof,thissystemshouldbeadopted
withoutdelay.
Otherinternational organizations ,notablytheIAEA,theOECD,
theWHOandtheIL.O,areworkingout-onthebasisofPublication 26
mentioned above-ajointrecommendation addressed totheStatesmembers
oftheseorganizations andincorporating theICRPrecommendations .
Thatbeingso,theCommission cannotdissociate itselffromthese
otherinternational organizations .Neithercanitacceptthatthelawsof
theMemberStatesoftheEuropean Communities shouldbeoutofstep
withthelatestscientific andtechnical knowledge .Thisviewisshared
bytheEconomic andSocialCommittee which,atitsplenarysessionon
12.7.78,regretted thefactthattherewasanappreciable timelagbefore
workersandthegeneralpublicbenefited fromthisscientific andtechnical
progress anddeplored theslowness withwhichnational lawswere
modified totakeaccountoftheICRPprinciples ,which,beitsaid,the
Directive of1June1976takesupinmorelegalterms.
χ
x x
5712/78e

-2-
Themainchangescontained intheproposalforadirective may
besummarized asfollows :
TitleIintroduces threenewunitsbut,indoingso,givesusers
theoptionofusingtheoldunitsforsometimetocome.TheCommission ,
indeed,isawareofthedangers-particularly intheareaofmedicine
andofmonitoring -ofasuddenandpremature introduction ofunits
withwhichmostusersarestilllargelyunfamiliar .
TitleIIremainsfundamentally unchanged .TitlesIIIandIVtake
accountoftheapproachdescribed above.Inaddition ,thedoselimits
forworkersandthepublicremainthesame,exceptthattheformula
D=5(N-18),themaximumpermissible doseduringonequarterand
thedoselimitof5rem/30yearsperheadofthepopulation asawhole
aredispensed with.Thenon-retention ofthelatterlimitsdoesnot,
however ,implyarelaxation .Infact,thebasicstandards laydown
thatanyexposure mustbejustifiedandthatprotection measures must
bemadeaseffective aspossible .Whatismore,itisprecisely because
thesetwoprinciples ofoptimization andjustification arealso–andfor
thefirsttime-applicable tothemedicalfieldthatitwouldhavebeen
impossible andillogical tolaydownadoselimitforthepopulation as
awhole.
TitlesV,VIandVIIontheorganization ofradiation protection
measures remainvirtually unchanged .
AsregardsAnnex 111,Itwillcontainthefiguresformaximum
permissible intakelaiddownbytheICRP.Theotherannexesremain
virtually unchanged .
Withaviewtokeepingtheannexes inquestion inlinewithscientific
andtechnical progress andtoobtaining themostappropriate figuresas
quicklyaspossible ,thefinalarticles oftheDirective provideforthe
settingupofastanding committee onamendment andupdating ,referred
toas'theCommittee' .-Itisanticipated thatMemberStateswillhaveto
takespecialmeasures toincorporate thevalueslaiddownbytheCommittee
intotheirownnational legislation asrapidlyaspossible .
ThatiswhytheCommission isforwarding totheCouncilof
Ministers oftheMemberStatesoftheEuropean Community theenclosed
proposalforadirective ,whichmakessomeslight,butnotfundamental ,
amendments totheDirective oftJune!976.
5712/78e

Doc.Nr5020/78ve
Revised May.1978
11
(ActswhoBepublication isnotobligatory )
COUNCIL
Proposedrevision (Oct1977)
oftheCouncil Directive
of1JuneI976
layingdowntherevisedbasicsafetystandards forthehealthprotection of.the
generalpublicandworkersagainstthedangersofionizingradiation
(76/579*Euratom)
THECOUNCIL OPTHEEUROPEAN COMMUNITIES ,
HavingregardtotheTreatyestablishing theEuropean AtomicEnergyCommunity ,andinparti­
cularArticles 31and32thereof,
Havingregardtotheproposal fromtheCommission ,workedoutafterobtaining theopinionof
agroupofpersonsappointed bytheScientific andTechnical Committee fromamongscientific
experts,intheMemberStates,
HavingregardtotheopinionoftheEuropean Parliament ,
HavingregardtotheopinionoftheEconomic andSocialCommittee ,
WhereastheTreatyestablishing theEuropean AtomicEnergyCommunity prescribes thatthe'
basicstandards fortheprotection ofthehealthofthegeneralpublicandworkersagainst
thedangersarisingfromionizingradiations ,asprovidedforinparticular inArticle 30
thereof,mustbelaiddowninordertoenableeachMemberStat,inaccordance withArticle
33,tolaydowntheappropriate provisions bylegislation ,regulation oradministrative action
toensurecompliance withthebasic ,standards totakethenecestary measures withregardto
teaching ,education andvocational training andtolaydownsuchprovisions inharmonywiththe
provisions applicable inthisfieldintheotherMemberStates;
WhereastheCouncil,on2February 1959»adoptedDirectives layingdownsuchbasicstandards
(l)andwhereasthesewerelastamendedbyDirective 76/579/Euratom(2);
Whereastheusefulness ofsomemodifications ofthelastDirective hasbecomeapparentin
thelightofnewscientific knowledge ofradiationprotection
Whereastheprotection ofthehealthofworkersandthegeneralpublicrequiresthatany
activityinvolving dangerarisingfromionizingradiations bemadesubjecttoregulation ;
Whereasthebasicstandards mustbeadaptedtothecondition underwhichnuclearenergyis
usedandwhereastheyvaryaccording towhethertheyareconcerned withtheindividual safety
ofworkersexposedtoionizingradiations orwiththeprotection ofthegeneralpublic;
ai,1)OJNo11,20.2.1959 »p.221/59.
,2)OJNoL187of12.7.1976

Whereas theprotection ofthehealth ofworkers exposed toionizing radiationB requires ,on
theonehand ,theorganization ofmeasures torestrict exposure andprocedures formeasuring
exposure and ,ontheother hand ,anadequate degree ofmedical surveillance ;
Whereas theprotection ofthehealth ofthegeneral ,public entails asystem ofsurveillance ,
inspection ,andinthecase ofaccident ,intervention
ι
HAS ADOPïiDû THIS DIRECTIVE }
TITLE I-HEFiyiTIOKS
Article 1
Forthepurposes ofthis Directive ,thefollowing terms have themeaning hereby assigned to
themt • -
(a)Physical terms ,quantities andunits
Ioni^ing^radiatlom .radiation consisting ofphotons orofparticles capable ofproducing ions
directly orindirectly .
Activity (a)j_thequotient ofdNbydt,where dWisthenumber ofspontaneous nuclear trans-
formatioris -which occur inaquantity ofaradionuclide inthetime interval dt,
dN
A"dt
This definition does notapply tothewords •activity *and'activities' inArticles 2,3»
4,6,6bis and12.
Becquerel (Bct)jthespecial name oftheSIunit ofactivity
1Bq-1e"1
Inthis Directive thevalues tofeeused when theactivity isexpressed incuries arealso
given .
1Cim3<>7*10^Bq(exactly )
1Bq-2.7027 x10 Ci
tAb£orb£d_dose jD^i thequotient ofd?bydm,where d*eisthemean energy imparted "byionizing
radiation tomatter inavolume element and dmisthe mass ofmatter inthat volume element *
D-fi .dm
2r^y_(2y )«thaspecial name oftheSIunit ofabsorbed dose .
1qy«1Jkg"1
Inthis Directive thevalues tobeused when theabsorbed dose isexpressed inrads are-
also given .
1rad■10*"Qy
1&r«100 rads

la"\JTIaLinearenergytrannf£r_orre£trict£d_linear £olli_si_onstop£ing_pnvyr_(LaJ.•thequotientofdB
by"dl,wheredlisthedistancetraversed byachargedparticleinamediumanddE1bthe
energylossduetocollisions withenergytransfers lessthanagivenvalue •£'.
■(fi)
Forradiation protection calculations ,allthetransferred energies areincluded ,sothat
becomes
Fluence£<P_)_of£arti_ele£j thequotientofdNbyda,where4Nisthenumberofparticles which
enteraBphereofcross-sectional areada.
^Ma)mr–
Fluencerajte–(jpX*the<luotientofd<pbydtfwheredxpistheincrementofparticlefluence
inthetimeinterval dt#
d<D9-dt
(b)Radiologica !tbiological andmedicaiterms
£rradiation «anyirradiation ofpersonsbyionizingradiation .Adistinction ismadebetweeni
-externalirradiationi irradiation resulting fromsourcesoutsidethebody;
-internalirradiation !irradiation resulting fromsourcesinsidethebodyj
-totalirradiation !thesumofexternal andinternal irradiatior .>
Continuou8_exposur£i Externalirradiation wherethesourcesofr*.Mationsubjectsthebody
toprolonged irradiation althoughitsintensity mayvarywith+•.meorinternalirradiation ,due
tocontinuous intakealhoughitslevelmayvarywithtime.
Single_expo8ure :Externalirradiation ofshortduration ,orinternalirradiation following
intakeofradionuclides overashortperiod.
factor_(£)j _afunctionoflinearenergytransfer (Loo),used'toweightabsorbeddoses
insuchawayastoindicatetheirsignificance forradiation protection purposes.
D^^e^uivalent thfcproductoftheabsorbeddose(D),thequalityfactor(q)andthe-"
productofallothermodifying factors (N).Wheretheword'dose'isusedalonethemeaniijg'.'
iaalwaysthatof'doseequivalent' .
Sieverttthespecialnameoftheunitofdoseequivalent whentheabsorbed doeeisexpressed
ingrays.InthisDirective thevaluestobeusedwhenthedoseequivalent isexpressed in
reinsarealsogiven
_21rem«10Sv
1Svm100rems
SPSP-ASPSL ecQiiva^lent^inde^x ^at_a_pointj ^themaximum 6.sequivalent withinthe28cmdiametercore,ofa30diameterspherecentred ,atthispointa-■'consisting ofmaterial equi­
valenttosofttissuewithadensityof1g.cnf"-'.
Shallowdo8e_ejjuival£nJt index,,_ata£oint1thejcaximuaidoseequivalent withinthevolume
between0.07mmand1cmfromthesurfaceofacmdiameterspherecentredatthispointand
consisting ofmaterialequivalent tosofttissue -withadensityof1g.cm--'.Itisnotneces­
sarytodetermine thedoseequivalent intheouterlay-ovofthiokneao 0.07mm.

-4-
ETrrtj'-edopestheveis-htsd meanoftbsaveragedos':^inthevariousorgansortisBv^s
evaluate'dbyt.hemethodsetoutinAnnexII,SectionE.
Wholebodyirradiation !irradiation regardedasuniformthroughthewholebody.
Partialbodvirradiationt irradiation predominant lyofpartof/thebodyorofoneormore
orranK~~or"TIsBueF™or irradiation whichisnotregardedasuniformthroughthewholebody.
Committed dose!thedosetoe.ncrpanortoatissueoveraperiodof50years,resulting from
an~inta*ce~of~cne ormoreradionuclides .
Geneticdosesthepeneticdoeetoapopulation isthedosewhich,if-itwerereceived by
earir"rerson~frorn contention totheweanapeofchildbearinp ,vouldresultinthesamegenetic
burdentothewholecopulation aedotheactualdosesreceived bytheindividuals ofthie
nooula+ion .Thepeneticdosecanbeaseeeeodastheannualgenetically significant doeemul­
tipliedbythemeanageofchildbearing ,whichistakentobe30years.
Annualrenetic.allv eimifleantdoeetoapopulation ttheaverageoftheindividual annual^nad~d06e£7"weij3rtecl inthecaseofeachindividual doeefortheexpectednumberofchildren
conceived Bubse<Tuent toirradiation .
Collective doseithecollective dose'a'toapopulation orgroup1Bgivenbythesumma­
tion <v . J
3-VBipi
whereHist^edosetothewholebodyortoaspecifiedorganaveragedoverthemem­bersoftheisubgroup ofthepopulation orgroup.
Radioactive contamination !thecontamination ofanymaterial ,surfaceorenvironment orofa
uersonbyradioactive substances .
Inthespecific caseofthehumanbody,thiscontamination includesbothexternalskinconta­
mination andinternal contamination irrespective ofmethodofintake.
Doselimits!Thelimitsth*•;areestablished in"thisDirective forthedosesresulting from
theexposureofexposedworicere,apprentices andstudents ,andmembersofthepublic,exclu­
dingthedosesresulting fromnaturalbackground radiation andirradiation ofindividuals as
aresultofmedicalexamination andtreatment undergone bythem.Thedoselimitsapplytothe
sumofthedosesreceived fromexternalirradiation duringtheperiodconsidered andthe
committed dosesresulting fromtheintakeofradionuclides duringthesaineperiod.
Intake!theactivity entering thebodyfromtheexternal environment .
Limitofannualintake!foragivenindividual ,theactivity which,whenintroduced intoth«
body,resultsinacommitted doseerrualtotheappropriate limitofannualdoselaiddown
inArticles 7»8,9and11.
Derivedlimitofconcentrationofradionuclide sintheairinhaledexpressed inunitsof
activity perunitvolumeistheannualmeanconcentration intheairwhich,inhaled ,overa
2000hours'work,givesanintakeetrualtothelimitofannualintake.
Radi'otoxlcity !thetoxicityattributable toionizingradiation emittedbyanincorporated
radionuclide anditsdaughters ;radiotoxicity isrelatednotonlytotheradioactive charac­
teristics oftheradionuclide butalsotoitschemical and.physicalstateandtothemetabo­
lismofthe"elementinthebodyorintheorgan.

-5-
(c)ôtherterme
Source^.anapparatus orsubstance capableofemittingionizingr?/liation.
Sealed_s£urce :asourceconsisting ofradioactive substances incorporated insolid
andeffectively inactivematerials ,orsealedinaninactive ■:onta?.ner ofsufficient strength
toprevent,tindernormalconditions ofuse,anydispersion ofradioactive substances andany
possibility ofcontamination .
Radi£acti.ve ^ubstancei anysubstancethatcontains o'heormoreradionuclides ofwhichthe
activityortheconcentration cannotbedisregarded asfarasradiation protection isconcer­
ned.
Naturalbackground_r adi_ationj_consistsofallionizingradiation fromnaturalterrestrial and
coBinicsources,totheextentthattheirradiation whichitcausesisnotsignificantly in­
creasedbyman.
Critical_asaembl£tanassemblyoffissilematerials inwhichitisfeasibletomaintaina
chainreaction .
Whole£0£ul_at^i£n_j _theentirepopulation ,including exposedworki.8,apprentices ,students ,
andmembersofthepublic. ..
Erasedworkers^personssubjected ,asaresultof'theirwork,toanexposureliabletoresultinanannualdosegreaterthanl/lOthofthelimitsoftheannualdoselaiddownfor
workers.
Critical_group££f_the_popu1ationjgToupscomprising personswhoseexposureis'reasonably
uniformandrepresentative ofthatofthemorehighlyexposedindividuals inthepopulation .
Member£of_the_public »individuals inthepopulation excluding exposedworkers,apprentices
andstudents ,duringtheirworkinghours.
■M
£cmtr°_ll£d_areatanareasubjecttospecialrulesforthepurp'i.aofprotection againstio­
nizingradiation aidtowhichaccessiscontrolled .
Su£ervi8£d_area:anareaBubjecttoappropriate supervision forthepurposeofprotection
againstionizingradiation .
Intcrventi^levelj .avalueofabsorbeddoseordoseequivalent ofaderivedvaluefixedin
connection withthedrawingupofemergency plans.
Ap£rov£d_m£di_cal_pra£titioners amedicalpractitioner responsible forthemedicalsurveillance
ofworkersofcategory AasdefinedinArticle 23,whosecapacitytoactinthisrespectis
recognized bythecompetent authorities . -
SuaHfied ex£crts:personshavingtheknowledge andtrainingneededtocarryoutphysicalor
technicaltests,orradiochemical tests,ortogiveadviceinordertoensureeffective protec
tionofindividuals andcorrectoperation ofprotective i;'filiations ,aathecasemaybe,
whosecapacitytoactasaqualified expertisrecognised .•'>3competent authority .
Accident_t ,anunforeseen eventthatcausesdamagetoaninui,l:a'ionordisruptsthenormal
operation ofaninstallation ,andislikeljtoresultforon<;ormorspersonsinadoseexce •
dingthedoselimits.
Plannedsp£cial£X£omiro_s _s,nexposurecausinganannualdose+oexceedalimitofannualdo-■>
forexposedworkers,permitted exceptionally incertainsituations daringnormaloperations
whenalternative techniques whichdonotinvolvesuc',ioxpotsurea cannotbeused.

Accidental exposures exposurewhichieofafortuitous andinvoluntary natureandinwhich
adoM~liu.lt forexposedworkarsieexceeded.
Phierfcijc^rexposureianexposure,justified,inabnormalconditions ,intheinterestsofbrin­ginghelpto"endangered individuals ,preventing exposureofalargenumberofpeople,orsavingavaluableinstallation ,andinwhichadoselimitforexposedworkersisexceeded ,
andinwhichthelimitsforplannedspecialexposures mayalsobeexceeded.Emergency expo­
suresshallapplyonlytovolunteers .,
TITIEII~SCOPE.REPORTING ANDAUTHORIZATION
Article 2
ThisDirectiveshallapplytotheproduction ,processing ,handling ,use,holding,storage,
transport anddieposalofnaturalandartificial radioactive subetances andtoanyother,
activitywhichinvolvesahazardarisingfromionizingradiation.
Article 3
EachMemberState'shallmakethereporting oftheactivities referredtoinArticle2
compulsory . *
Withoutprejudice toArticle5andinthelightofpossibledangersandotherrelevantconsi­
derations ,theseactivities shallbesubjecttopriorauthorization incasesdecideduponby
eachMemberState.
Article 4
Withoutprejudice toArticle5,theserequirements forreporting andobtainingpriorauthori­
zationneednotbeappliedtoactivities involvings
(a)radioactive substances whentheamountsdonotexceedintotalthevaluesgivenin
AnnexIj
(b)radioactive substancesofaconcentration oflessthan100Bqg""'-(0.0027yuCig"**)thislimit,beingincreaardto500Bqg~l(0.014/uCiforsolidnaturalradioactive
4substances : '
(c)theuseofnavigation instruments ortimepieces containing radioluminescent paint,but.
nottheirmanufacture orrepairexceptasprovidedforinparagraph (a)j
(d)apparatus emittingionizingradiations andcontaining radioactive substances inamounts
greaterthanthevaluesspecifiedin(a),providedthati
il)itisofatypeapprovedbythecompetentauthority? "• 2)itpossesses advantages inrelationtothepotential hazardthat,intheopinionof
thecompetent authority ,justifyitsuse;
(3)itisconstructed intheformofBealedsourcesensuringeffectiveprotection against
anycontactwiththeradioactive substances andagainstanyleakageofthem;and
(4)itdoesnotcauseatanypointsituatedatadistanceof0.1mfromtheaccessible
surfaceoftheapparatus andundernormaloperating conditions ,adoserateexceeding
1/uSvh"(0«1mremh7)
(e)apparatusotherthantelevision receiversemittingionizingradiationbutnotcontaining
anyradioactive substances ,providedthati
(1)itisofatyeapprovedbythecompetent authority;
(2)itpossesses advantages inrelationtothe-potential hazardthat,intheopinionof
thecompetent authority ,justifyitsuse;and

-7-
(3)itdoesnotcause,atanypointsituatedatadistanceof0.1mfromtheaccessible
surfaceoftheapparatus andundernormaloperating conditions ,adoserateexceeding
1AiSvh"(0.1mremh""^);
(f)television receivers whichdonotcause,atany-pointsituatedatadistanceof0*05o
fromtheaccessible surfaceofthereceiver ,adoserateexceeding-i..-1»5/uSvh(0.5mremh).
Article 5
Apartfromtheprohibitions providedforbynational law,andirrespective ofthedegreeof
dangerinvolved ,asystemofpriorauthorization mustbeappliedinrespectoft
(a)theadministration ofradioactive substances topersonBforpurposesofdiagnosis ,
treatment orresearch ;
(b)theuseofradioactive substances intoysandtheimportation oftoyscontaining radio­
activesubstances ; ,
(o)theadditionofradioactive substances intheproduction andmanufacture offoodstuffs ,
medicinal products ,cosmeticB andproductsforhousehold use(exceptfortheinstruments
andtimepieces referredtoinArticle4(<s)andtheimportation forcommercial purposes
ofsuchgoodsiftheycontainradioactive Bubstances *
TITLEIII-LIMITATION OPDOSESPOHCONTROLLABLE EXPOSURES
Article 6
Thelimitation ofindividual andcollective dosesresulting fromcontrollable exposures
shallbebasedonthefollowing generalprinciples t
(a)Everyactivityresultinginanexposuretoionizingradiationshallbejustified bythe
advantages whichitproduces ..
(b)Allexposures ..hallbekeptaslowasreasonably achievable .
(c)WithoutprejudicetoArticle10,thesumofthedosesandcommitteddosesreceivedshall
.notexceedthedoselimitsforexposedworkerB,membersof-!:hepublic,apprentices and
students,asthecasemaybe,asspecified inthistitle.
Theprinciples setoutin(a)and(b)aboveapplytoallexposurestoradiation andinclude
medicalexposures.Theprinciplesetoutin(c)doesnotapplytotheexposureofindividuals
asaresultofmedicalexamination andtreatment undergone bythem. ,
ChapterI–Limitation ofdosesforexposedworkers
Article 6b1n
1*Workersunder18yearsofagemaynotcarryoutanyact.ivityv;hichwouldresultintheir
beingexposedworkers.
2.IXrring.pregnancyorthenursingperiod,womenmustnoi"Lit.ployedinvorkinvolvinga
riskofhighexposure ;ifnecessary ,aspecialwatch .»keptforbodilyradioactive
contamination .

Article 7-Whole body irraoia-;ion
1„Thedoes limit forwhole "bodyirradiation ofexposed workers shall 1)650mSv(5rems )
inayear .
2.Forwomen ofrepioductive capacity ,thedoss "totheabdomen shall notexceed 13tsSv
(1.3rems )inaquarter .
3«Assoon esspregnancy isdeclared ,measures shall betaken toensure that exposure of
thewoman oonceracd inthecontext ofheremploy® eut is t?uchthat thedose tothefoetus ,
accumulated over theperiod oftime between declaration ofpregnancy andthedate of
delivery ,reaiains assmall asisreasonably practicable andinnoca.se exceeds 10mSv
(lrem).Ingeneral ,this limitation canbeachieved byemploying thewoman inworking
conditions appropriate tocategory Bworkers *
Article 8
Inthecase ofpartial body irrediationj
(a)thedose limit fortheeffective dose evaluated bythemethod setoutinAnnex IIr
Section E,shall be50®Sv(5rems )inayears theaverage dose ineach oftheorgans
ortissues involved shall notexceed 500mSv (50rems )inayear .
(b)Inaddition » ..
-thedose limit forthelens ofthaeyashall be300mSvt30rens )iaayear ;
-thedose limit fortheskin shall beJOQmSv (50rems )inayear ,andBhall apply''
tothedose averaged over anyarea of100cm^|
-thedose limit forthehands ,forearms ,feet andankles shall be300mSv (50reins )
inayear .
Chapter II-Limitation ofdoses for aunrentices and students
Article 9
1.Thedose limits forapprentices andstudents aged 18years orover whoaretraining
•foremployment involving exposure toionizing radiation orwho ,inthecourse oftheir
studies ,areobliged tousesources ,shall beequal tothedose limits forexposed wor­
kers laid down inArticles 7 8.
20Thedose limits forapprentices andstudents aged between 16and18years whoaretrai­
ning foremployment involving exposure toionizing radiation orwho ,inthacourse of
their studies ,areobliged tousesources ,shall beacru&l to3/10ths ofthelimits of
aanual dose forexposed workers laid down inArticles 7aai8.
3oThedose limits forapprentices andstudents aged 16years orover whoarenotsubject
tothepre^isionc ofparagraphs 1and2andforapprentices andstudeuts aged less than
16years ,shall bethesame asthedose limits foroembers ofthepublic specified in
Article 11.However ,thecontribution totheannual doses that they areliable toreceive
byvirtue ofthetraining shall notexceed one–tenth ofthedo6e limits specified in
Article 11andeach single exposure shall notexceed one-hundredth ofthose dose limits .•

-9-
Chapter III-Planned special exposures
Article 10
1.Only workers ofcategory Adefined inArticle 23maybesubjected toplanned special
exposures .Each planned special exposure must bethesubject ofanappropriate permit .
Such apermit shall begiven only inexceptional situations during normal operations when
alternative techniques which donot involve such exposures cmot beused *Account shall
betaken ofthe ageandhealth oftheworkers involved .
2.Thedoses orcommitted doses received asaresult ,ofplanned special exposures must not
inanyyear exceed twice thelimits ofannual dose laid down inArticles ^and8or,in
alifetime ,five timeB those dose limits .
3*Planned special exposures must notbeauthorized :
(a)if,during theprevious 12months ,theworker hasreceived anexposure giving rise
todoses inexcess ofthelimits ofannual dose laid down inArticles 7and8,or
(b)iftheworker haspreviously received accidental oremergency exposures ,thesumof
the doses from which exceeds five times the limits ofannual dose laid down in-Articles
7and8}or
(o)iftheworker isawoman ofreproductive capacity . .
4>Theexceeding ofdose limits asaresult ofplanned special exposure shall notinitself ,
beareason forexcluding theworker from hisusual occupation .Subsequent conditions
ofexposure shall beBubject totheagreement oftheapproved medical practitioner . '
5.Allplanned special exposures must beentered inthemedical record provided forinArticle
33,inwhich the .estimated value ofthedose oftheactivities taken into thebody shali
also beentered . ,•
6.Before receiving aplanned special exposure ,theworker shall begiven appropriate infor­
mation about therisks involved andtheprecautions tobetaken during theoperation .
Chapter IV-Limitation ofdoses forthepopulation
Article 11-Dose limits formembers ofthepublic *
1.Shefollowing dose limits shall apply without prejudice toArticle 12.
2.Inthecase ofthewhole body irradiation thedose limit shall be5mSv(0.5rem)ina
year . -
3.Inthecase ofpartial body irradiationi '
(a)thedose limit fortheeffective dose evaluated bythemethod setoutinAnnex il,
Section E,shall be5mSv (0.5rem)inayear ;theaverage dose ineach oftheorgans
ortissues involved shall notexceed 50mSv(5rems )inayear .
0>)Inadditions
–thedose limit forthelens oftheeyeshall be30n■■•r(3rem .)inayear .
–thedose limit fortheskin shall be5°mSv(5remn }inayear ,andshall apply
tothedose averaged over anyarea of100cm^.
–thedose limit forthehands ,forearms ,feet andankles shall "b?5^EiSv(5rems )
inayear .
Article 12-Exposure ofthepopulation asawhole
1.Each Member State shall seethat thecontribution totheirradiation ofthepopulation
asawhole from each activity iskept to -theminimum amount necessitated bythat activity ,
taking account oftheprinciples setoutinArticle 6.

-10-
2.Thetotal ofallBuch contributions shall bekept under review andinparticular the
gehetio dose resulting from allthese contributions shall beestimated .
3„Member States shall regularly transmit theresults ofthase review andestimates to
the Commission .
TTTIS IV-B3RIVED LIMITS - -
Article 13
1.Thesetting ofderived limits inthis Title shall' notexclude theuseofother methods
ofverifying compliance with thedose limits .
2.Thevalues ofthequality factors tobeused inevaluating dose equivalent fordifferent
types ofradiation shall bethose laid down inAnnex II.
Article 14–Extern alirradiation only
Inthecase ofexternal irradiation ofthewhole body orofasubstantial fraction ofthe
body ,thedose limits fixed inArticles 7,jBand11shall bedeemed tobecomplied with if
thedeep dose equivalent index does notexceed thedosa limit laid down forthewhole body
irradiation ,andiftheshallow dose equivalent index does notexceed thedose limit laid
down for the skin *
Inthecase ofirradiation byneutrons orprotons thedose limits shall bedeemed tohave
been complied with ifthedoses assessed using theconversion factors laid down inAnnex IT,
Sections CandD,donotexceed thedose limits fixed forwhole body irradiation®
Article 15-Internal irradiation only
Thevalues ofintake andconcentration ofradionuclides intheair ,tobeused inimplemen­
ting therequirements ofArticles 1,8and11,shall bethose laid down inAnnex III.
(a)Thetables listed inAnnex III (l)give :
-thelimits ofannual intake byinhalation ofradionuclides forexposed workers ;
.-thederived limits ofconcentration ofradionuclides intheairinhaled forexposed
workers .They must beconsidered asaverage values foroneyear ;
-thelimits ofannual intake byinhalation andbyingestion ofradionuelid.es for-
members ofthepublic .
,(b)Where contamination iscaused byamixture ofradionuclides themethods given in
Annex III (2)shall beused .
Article 16-Combinations ofexternal and internal irradiation
Inthecase ofcombinations ofexternal irradiation ofthewhole body orofasubstantial
fraction ofthebody ,andinternal contamination byoneormore radionuclides ,the limits of
Articles 7»8and11,shall bedeemed tohave been metifboth thefallowing conditions are
satisfied !

-11-
Where
EL .istheannual deep dose equivalent index ,HListhelimit ofannual dose forthewhole
'body ,Ijistheannual intake oftheradionuclide j,andI-^isthelimit ofannualintake ofthat radionuclide ;and '
(b)thelimitations inthedoses laid down inArticles 8(b)wd11(3 )(b)asappropriate
areapplied .
Article 17
Thederived limits relating toapprentices andstudents shall bederived from the limitations
ofdose laid down inArticle 9.
TITLE V-ACCIDENTAL AND EMERGENCY EXPOSURES OPWORKERS
Article 18
Allaccidental andemergency exposures shall beentered intheRadical record oftheworker ,
provided forinarticle 33«Whereever possible doses and .committed doses received volunta ^-
rily orinvoluntarily inthecourse ofaccidental andemergency exposures must berecorded
separately ontheexposure record provided forinarticle 30.Theprocedures set-out in f
Article 36shall also beapplied . ' "*
• •
TITLE VI-FUNDAMENTAL PRINCIPLES GOVERNING OPERATIONAL PROTECTION OPEXPOSED WORKERS '<
Article 19
Operational protection ofexposed workers shall be "based ontheTollowing principles :
(a)classification ofplaces ofwork into different areas ;
(b)classification ofworkers into different categories ;
(c)implementation ofcontrol measures andmonitoring relating tothese different areas
andtothedifferent categories ofworkers .
These principles ofprotection shall also apply totheapprentices andstudents referred to
inArticle 9(l)and (2).
t
Chapter I-Measures forth9restriction ofexposure
Section 1^–£ljW£i fixation anddemar£ati ori_of areas *
Article 20
Forthepurposes ofradiation protection ,each Member Stat r^-all make arrangements asregards
allplaceB ofwork where there isarisk ofexposure toioni .igradiation .
Inworking areas where theexposure isnotliable toexceed or-o–'tenth ofthelimits of .
annual dose forexposed workers ,itshall notbenecessary tomake special arrangements for
thepurposes ofradiation protection .
Inworking areas where theexposure isliable toexceed one-tenth ofthelimits ofannual
dose laid down forexposed workers ,thearrangements must beappropriate tothena+ure of
theinstallation andBources andtothemagnitude andnature ofthehazards .Thescope of
theprecautions andmonitoring ,aswell actheir type andquality ,muct beappropi^iate tothe'

-12
hazards associated with thework involving exposure toionizing radiation .
Adistinction ehall temade between »
(a)controlled areas .
Anyareainwhich doses areliable toexceed three-tenths ofthelimits ofannual dose laid
down forexposed workers shall constitute orbeincluded inacontrolled area .
Annex IVlists examples ofestablishments andplants inwhich thepresence ofgenerators and
sources liable tobethecause ofexposure generally justifies thedemarcation ofoneormore
controlled areas .
(b)supervised areas .
Anyareawhich isnotconsidered asacontrolled area andinwhich doses areliable toexceed
one-tenth ofthelimits ofannual dose laid down forexposed workers shall be'considered as
asupervised area .
Article 21
Controlled areas must bedemarcated .
Taking into account thenature andextent oftheradiation hazards .:
(a)radiological environmental surveillance shall beorganized incontrolled andsupervised
areas ,andj inparticular ,activities ,doees anddose rates as.thecase may.be shall be ,
monitored andresults recorded ; , ^
(b)incontrolled andsupervised areas ,working instructions appropriate totheradiation
hazard shall belaid down ;
(c)thehazards inherent inthesources shall beindicated incontrolled areaa ;
(d)signs indicating sources shall bedisplayed incontrolled andsupervised areas .
Qialified experts shall beconcerned inthedischarge ofthese duties# , .
Article 22
Theminimum requirement foracontrolled area shall "bethecontrol ofaccess byappropriate
warning signs *
« s
Section 2-Classification ofexposed workers
« . • >
Article 23 *
Forthepurposes ofmonitoring andsurveillance ,adistinction shall bemade between two
categories ofexposed workers <
-category Aithose whoareliable toreceive adose greater than three-tenths ofalimit
ofannual dose *
-category B:those whoarenot liable toreceive this dose .
Article 24
Exposed workers must beinformed ofthehealth risks involved intheir work ,theprecautions ,
tobetaken ,andtheimportance ofcomplying with thetechnical andmedical requirements .
Apprentices andstudents referred toinArticle 9(l) (2)shall also begiven adequate
training inthefield ofradiation protection andappropriate information regarding therisks
.involved intheir work .

-13-
1
Section^–Examination andtesting£if_JP£9i®£tive devi£esjandmeasuring^ri^tniments
Article 25
Theexamination andtestingofprotective devicesandmeasuring instruments shall "bethe
responsibility ofqualified experts.
Theexamination andtestingshallcomprise ?
(a)priorcriticalexamination ofplansforinstallations fromthepointofviewofradiation
protection ;
(b)theacceptance ofnewinstallations fromthepointofviewofradiationprotection ;
(c)regularcheckingoftheeffectiveness ofprotective devicesandtechniques ;
(d)regularcheckingthatmeasuring instruments areserviceable andcorrectly used.
ChapterII–Assessment ofexposure
Article 26
Thenatureand"frequency ofassessment ofexposureshall "besuchastofacilitate compliance
withthisDirective ineachcase. »
Section 1-Collective nonitoring
Article 27
Takingintoaccounttheradiological hazards,measurements shallVecarriedoutt
(a)ofdoseratesandfluencerates,indicating thenatureandthequalityoftheradiation
inquestion ;
(b)oftheatmospheric concentration andsurfacedensityofcontaminating radioactive sub­
stances,indicating theirnatureandtheirphysical andchemicalstates.
Whereappropriate ,theresultsofthesemeasurements shallbeusedforestimating individual
doses.
Section2–^ndi^dual_m£rût£riri2 ,.
Article 28
'Theassessment oftheindividual dosesmustbesystematic forworkersofcategory A.This
assessment shallbebasedonindividual measurements or,incasesvheretheseareimpossible
orinadequate ,onanestimatearrivedateitherfromindividual measuraments madeonother
exposedworkers,orfromtheresultsofthecollective monitoring providedforinArticle27•
Article 23
Inthecaseofaccidental oremergency exposure,theabsorbeddoseshall,beaapessed ,whether
awholeorapartialbodyirradiation hasoccurred.
Article29bis
Theresultsofindividual monitoring shallbesubmitted totheapprovedmedicalpractitioner
withaviewtotheirinterpretation underhisresponsibility inrelationtothehealthof
theworkers.

-14
Section 3-Recording £f_results _
Article 30
Thafollowing shall bekept inthearchives foraperiod ofatleast 30years :
(a)theresults ofcollective monitoring measurements used toassess individual doses ;
(b)theexposure record containing documents relating totheassessment ofindividual donee }
(c)inthecaseofaccidental oremergency exposure ,tb.ereports relating tothecircumsten -
oes andtothe action taken *
Forthedocuments referred toin(b)and (c),theperiod of30years shall start atthetime
ofcessation ofwork involving exposure toionising radiation .
Chanter III-Medical surveillance ofexposed workers
Article 31
Themedical surveillance ofexposed workers shall bebased cntheprinciples that govern
occupational medicine generally .Itshall include ,asappropriate ,pre-emplojnnent medical
examinations andperiodic review ofhealth ,thefrequency ,andtheform ofthelatter being
determined bytheworker 'sstate ofhealth ,theconditions ofwork andtheincidents that
mayaccompany it.
Article 32 >
Noworker maybeemployed foranyperiod as •anexposed worker ifthemedical findings are
unfavourable .
Section _1-Medical ,eurvei11anca_ofworker ^ofjcategorjr A
Article 33
Themedical surveillance ofworkers ofcategory Ashall betheresponsibility ofapproved
medical practitioners ..
Itshall include :
(a)apre-employment medical examination
Thepurpose ofthis examination shall betodetermine theworker 'sfitness forthefirst post
forwhich heisbeing considered .Itshall include aninquiry into hismedical history inclu­
ding allknown previous exposures toionizing radiation resulting either from hisemployment
orfrom medical examination andtreatment ,andalso theclinical andother investigations •.
necessary forassessing hisgeneral state ofhealth .
(b)general medical surveillance
Theapproved medical practitioner must have access toanyinformation herequires inorder
toascertain thestate ofhealth ofworkers under surveillance andtoassess theexisting
environmental conditions intheworking premises ,insofar asthey might affect thefitness
ofworkers forthetasks assigned tothem .
(o)periodic reviews ofhealth
Thehealth ofworkers shall besubject toreview' asamatter ofroutine todetermine whether
they remain fittoperform their duties .Thenature ofthis review shall depend onthetype

-15-
andextent ofexposure toionizing radiation andontheindividual worker 'sstate ofhealth .
Thestate of .health ofeach worker shall bereviewed atleast one ayear andmore frequently
iftheworker 'sexposure conditions orstate ofhealth sorequiro .
Theapproved medical practitioner mayindicate theneed formedical surveillance after cess ac­
tion ofwork for aslong asheconsiders itnecessary tosafegusr ithehealth oftheperson
concerned .
Article 34
Thefollowing medical classification shall beadopted with respect tofitness forwork as
aworker ofcategory A:
-fit ;
-fit ,subject tocertain conditions ;
-unfit .
Article 35
1.Amedical record shall beopened foreach worker ofcategory Aandkept uptodate BOlong
asheremains aworker ofthat category .Thereafter itshall beretained inthearchives
foraperiod ofatleast 30years .
2.Themedical record Bhall include information regarding *thenature oftheemployment ,the
results ofthepre-employment medical examination andperiodic reviews ofhealth ,the
record ofdoses that iaused tocheck that thevalues laid down inArticles 7,8and10
have notbeen exceeded ,andtherecord ofdoses received inthecourse ofaccidental and
emergency exposures .
Section 2-Special surveillance ofexposed workers
Article 36
Special surveillance shall beprovided ineach case where thedose limits laid down inArtic­
les7and8areexceeded .Subsequent conditions ofexposure shall liesubject totheagreement
oftheapproved medical practitioner .
Article 37 •
Inaddition totheroutine review ofhealth provided forinArticle 33 ,provisions shall be
made foranyfurther examinations ,decontamination measures orurgent remedial treatment
considered necessary bytheapproved medical practitioner .
Section ^-Apgeal^s
Article 38
Each Member State shall laydown theprocedure forappeal against thefindings anddecisions
made inpursuance ofarticles 32and 36.
Chapter IV
Article "V?
1«Each Member State shall take allnecessary measures toensure theeffective protection
ofexposed workers *Itshall make provisions relating totheclassification ofplaces of

-16-
work ,totheclassification ofworkers ,totheimplementation ofarrangements aimed at
restricting exposure andtomonitoring .Itshall also establish asystem orsysteirs of
inspection tosupervise theexaminations andmonitoring specified inthisDirective and
toinitiate surveillance andintervention measures whereever necessary ,
2,Each Member State shall make thenecessary arrangements torecognize thecapacity ofthe
experts responsible fortheexamination andcontrol ofthevarious protective devices and
measuring instruments andtoapprove medical practitioners responsible forthemedical
surveillance ofcategory Aworkers .Tothis end,eachMember Sts.te shall arrange forthe
training ofsuch specialists .
3.Each Member State shall make sure that themeans necessary forproper protection are
placed atthedisposal ofthe ■departments responsible .Thecreation ofaspecialized
radiation protection unit shall berequired forallestablishments inwhich there isa
serious risk ofexposure orcontamination .This unit ,which maybeBhared byseveral
establishments ,shall bodistinct from production ,andoperation units .
4oEach Member State shall facilitate appropriate access within theCommunity toallrelevant
information concerning theposting ofeach exposed worker andthedoses received .
5.Fortheguidance ofmedical practitioners responsible forthemedical surveillance of
exposed workers ,each Member State shall draw upalist ,which need notbeexhaustive ,
ofthecriteria which should betaken into account when judging aworker 'sfitness tobe
exposed toionizing radiation . *
TITIE VII»FUNDAMENTAL PRINCIPLES GOVERNING OPERATIONAL PROTECTION OFTHEPOPULATION
Article 4P
1.Operational protection means allarrangements andsurveys fordetecting andreducing the
factors which ,intheproduction anduseofionizing radiation orinthecourse ofany
operation involving exposure toitseffects ,areliable tocreate anunjustifiable risk
ofexposure forthepopulation .Theextent oftheprecautions taken shall depend upon
themagnitude ofthe -risk ofexposure ,especially intheevent ofanaccident ,andupon
demographic datL .Operational protection hasapplication inthemedical field aswell as
inother fields .
«
2#Protection shall include theexamination andtesting ofprotective arrangements anathe
dose determinations tobecarried outfortheprotection ofthepopulation *
Article 41
Theexamination andtesting ofprotective arrangements shall includes •■
(a)examination andapproval ofproposed installations involving aradiation hazard ,■andof
theproposed Bitting ofinstallations intheState ;
(b)acceptance into service ofnewnuclear installations with regard toprotection against
.anyradiation orcontamination liable toextend beyond theperimeter oftheinstallations
taking into account demographic ,meteorological ,geological ,hydrological andecological
•conditions ;
(c)checking theeffectiveness oftechnical protective devices ;
(d)acceptance ,from thepoint ofview ofsurveillance ofradiological hazards ,ofequip­
ment formeasuring radiation andcontamination ;
(e)checking that measuring instruments areserviceable andcorrectly used ;
(f)whenever necessary ,theestablishment ofemergency plans andtheir approval ;
(g)theestablishment andapplication ofwaste discharge formulae andprovisions tobemade
formeasurement .

-17-
The .tasks listed in(a)to(g)shall becarried outinaccordance with rules laid down by
thecompetent authorities onthebasis oftheextent oftheradiation hazard involved .
Article 42
1.Thehealth surveillance ofthepopulation shall be'based ,inparticular ,ontheassess­
ment ofthedoses received bycritical groups ofthepopulation and laythepopulation as
awhole ,both innormal circumstances andintheevent ofanaccident .
2.Surveillance shall becarried outj
(a)onthecritical groups ofthepopulation and ,inparticular ,inallplaces where such
groups may occur ;
(b)over thewhole area forwhich thedose limit isthat laid down forthe .whole popu­
lation . • v
3*Taking into account theradiological hazards ,thedose determinations tobecarried out
fortheprotection ofthepopulation shall include i
(a)assessment ofexternal exposure ,indicating ,where appropriate ,thequality ofthe
radiation inquestion ;
(b)assessment ofradioactive contamination ,indicating thenature andthephysical and
chemical state oftheradioactive contaminants anddetermination oftheir activity and
their concentration ; •
(o)assessment ofthedoses that thecritical groups ofthepopulation areliable to
receive innormal orexceptional circumstances ,andspecification ofthecharacteris­
tics ofthese groups ;
(d)assessment ofthegenetic dose andoftheannual genetically significant dose ,taking
demographic characteristics into account .
Doses duetoexposure tovarious sources must beadded together wherever possible .
(e)Thefrequency ofassessments shall besuch astofacilitate compliance with this
Directive .
(f)Records relating tomeasurements ofexternal .exposure andradioactive contamination
andtheassessment of*hedoses received bythepopulation ,shall bekept inthe
archives andshall include accidental andemergency expoTurras .
Article 43
1.Each Member State shall establish asystem ofinspection tosupervise thsprotection of
thehealth ofthepopulation ,tointerpret interms oftheeffocts onhealth theresults
'oftheassessments required byArticle 42(3)»andtotest compliance with thedose
limits laid down inArticle 11.
2.Each Member State shall initiate action inregard tosurveillance andintervention
wherever necessary .
3»Each Member State shall take measures toensure andeffectively coordinate thehealth
surveillance ofthepopulation ,shall decide thefrequency ofassessments andshall take
allnecessary steps toidentify thecritical groups oft'■;copulation ,taking into account
theeffective pathway oftransmission oftheradioactive .erial .These measures may ,
ifnecessary ,betaken byoneMember State jointly with ct'-i>rMember States .
4.Inrelation topossible accidents ,each Member States
(a)shall stipulate intervention levels ,measures tobetaken bythecompetent authorities
andsurveillance procedures with respect tothepopulation groups that areliable to
receive adose inexcess ofthe dose limits laid down inArticle 11.
(b)shall determine andprovide thenecessary resources both inpersonnel andinequipment

-ne~
toenableaction ,tobetaksnicsafeguard andmaintaintheheal+.hofthe
population .Theesmeasures may,ifnac-ssa&ry ,betakenbyoneMemberState
jointlywithotherMemberSta.tea,
5,Anyaccidentinvolving exposureofthepopulation toradiation mustbenotified
asamatterofurgency,whenthecircumstances sorequire,toneighbouring Member
StatasandtotheCommission oftheEuropean Communities .
Article 44
Anyamendments requiredtoadapttheharmonized 8+e.ndards toscientific progressshallbeadoptedinaccordance withtheprocedurelaiddowninArticle46.
Article 45
1.ACommittee responsible foradaptingtheAnnexesinthisDirective totechnical
progress (hereinafter called'theCommittee' )isherebysetTip.Itehallconsist
ofrepresentatives oftheKemberStatesandbechairedbyarepresentative ofthe
Commission .
2<>Th®Committee shalldrawupitsrulesofprocedure .
Article 46
1.Wheretheprocedure laiddowninthisArticle iBtobefollowed ,mattersshallbe
referredtotheCommittee bythechairman ,eitheronhisowninitiative oratthe
request ,oftherepresentative ofah'smberState..
2,Therepresentative oftheCommission shallsubmittothsCommittee adraftofthe
measures tobeadopted.TheConmittee shalldeliveritBopinion onthedraftwithin
atimelimitwhichmaybedetermined bythechairman according totheurgencyof
thematter.Itshalldecidebyamajority of41votes,thevotesofthpMember
StatesbeingweightedasprovidedforinArticle148(2)oftheTreaty..The
chairman shallnotvote.
3*(a)TheCommission shalladoptthemeasuresenvisaged wheretheseareinaccordance
/withtheopinionoftheCommittee .
(b)Wherethemeasuresenvisagedarenotinaccordance withtheopinionofthe
Committee ,orifnoopinionhasbeengiven,theCommission shallforthwith
proposetotheCouncilthemeasures tobeadopted.TheCouncilshallactby
aqualified majority .
•(c)If,withinthreemonthsoftheproposalbeingsubmittedtoit,theCouncil
hasnotacted,themeasures proposedshallbeadoptedbytheCommission
Article 47
1.EachMemberStateBhallputintoeffectthenecessary measurestoconform
tothisDirective withinaperiodoftwoyearsfromthedateofnotification .
2.BachMemberStateshallinformtheCommission ofthearrangements ithasmade
tocomplywiththisDirective *
Article 48
ThisDirective isaddressed totheMemberStates * v
DoneatBrussels ,
•<
. PortheCouncil
ThePresident
5020778e

^■'-'ΤίίΓΝΕΧ Τ
Valuesofactivitiesnottobeexceeded,incompliance withArticle4(a)»fortheradio­
nuclides(*)listedintheleft-handcolumna^eindicated byanXinthevariouscolumns
ofthefollowingtable:
.... ...GroupI
! 5kBq
1tU'-j-ÎO
Ridionudid -» CiGrouoII
50k3qg.I
GrouoIII
500k3q
1."*rx1Q~\,.01GroupIV.
5000kBq.
1.hX10~C
X 1H–3 -^
4■Bs–7''' •X
6C–14- -I"x–!
8VO–15" I- •!X
9"F–18 IXf
IlNa–22 X
11Na–24 [ X
115i–31 v IA
15P-32 X
lôS–35 X
17Ct–3S •X
17:Cl-33 X
18Ar–37 !x
18Ar–-il Χ
19K--'.2 X
19K–43 Ix-
20Ca-Î5 X
20.Ca–47
21Sc–46 Χ Γ :
21Sc–17 χ__^ ::
2iSc-•!-» I>'
23V–ilS !Jx
2-tCr–51 X
2^Μη–52 IX
J-3Mn–54 X
2jMa–56 *
25Fe–52 X
26Fc–55 1 L*
25Fe–59 5
27Co-56 Ix !
27Co–57 ! Ix1_
27Co-53 __J *
27Co–58m I•-•Iχ
27Co–60 χΤ
28Ni–59 1x
.2SNi–t>31*
'''(^IWalphabetical listofelementsappearsattheendof.thisAnnex
»«

-20-
Rairotwcn;#»|Croupf
ioaCrctpQ
«)-'CiC>T*ipfu |
i'.>-CijGlfUlpIV
!«>-»Ci
28Ni–fvïT x
29Cu–64--T X
30Zr»–G.1» •! X
30Zn–ôl>mj x!
30Zti–69•-J X
31Ga–79.T iXΤ
32Ge–71 Χ
33-As-73 I 'X.|
33Aj–711 .X
33 ■As–76T -
33As–77 X
Z*-Se–75■' X I
35•Br–82... XI
36Kr–&>m*-•j 'iX
3oKr–8.5 X
36...Kr–87-. J
37•Rb–86! i ■X'
33Sr–85rn ■1 X
38Sr–55 X.. .. •
i
38-Sr–8!)I.X
38Sr–90 X
33Sr–91 X
33Sr–92♦X
3')Y-SO X
39Y–91m•. X
39Y-91X
39Y–92
39Y--93 rx
40Zr-93,IX
*0Zr-95. ■X
40Zr-97 X
4'.Nb–93mX
•i!Nb–93 *
41Nb–97 Γ*
42Mo–99 X
43Te–96mJ: X
43Te–56 X
43Te–97m X
43Te-97 IΓχ
43Te–99m i X
43Te–99 ΙX
44Ru–97 r*
44Ru–103 Γ*
44Ru–105 X
44Ru–10H X

-21-
CrAupt
HWClÏI
l*r*L*Groo¡>lü
"lO-iUCroupIV
If»-»U
45Rh–IQjin I X
45Rh–ïOjJ
46Pel–103 [ *
45Pd–ioy
47Ag–105 I X
47.Ag–110m• X
47A~–111
43Cd-10'J
48.Cd–U5aiX
4»Cd–115j
49_In–*113rrtI X
49-In–114»mIX
.49In–115mI χ
50Sn–113 1
50Sa–125 Χ I
51Sb–122 X
51Sb–124X
51•Sb-125 •χ
52Te–125m X
52Te–127m X
52Te–127 X
52Ts–I2i)m X
51Te-123 X
52Ts–131m X
52Te–132"
X
53"I-124 X
53ï–125 X
53!-12'J"x
53I-130!| Γχ__
53I-131 5
53I–132 ï
53!–133 X
53I–134 X
53I–135 X
5VXe–131niX
54Xe–133 X
OtXe–135 X
55Cs–131
55Cs–134m• 1-x
55Cs-134 X
55C»–l-'.j X
5aC»–I3(>X
55Cs–137 X
5riBa–131 J
56Ba-140 X

-22-
RM:ionuc /id«9O-o'-ipS Cm»»j»U
m-»CiCroupiil
!!>-•'•CiCr)npIV
«0-»Ci
57La–110M *
5^Ce–141 *_1
53Ce–U3 I X
58Ce–144 X
59Pr–142 [
5'JPr–1-13 "• X
60-Nd–147 X_
60Nd–H9 _X 1
61Pm–147 X
61Pm–149-
62■*Sm–151 I X
6'>>Sm–153-J X
63Eu–Î52m(9h)1 x
63Eu–152(13a) ■IX. I
63Eu–154 •j X
63Eu–!55• I X
64Cd–153 X
64Gd–159 r^<
65•Tb–160 !X••
66Dy–165v Χ
66Dy–16o X
67Ho–166- X
63Er–169 X
63Er–171- Χ
63Tm–170 |X "
COTm–171 X·
70Yb–175X
71Lu–177 Χ
72Hf–181 *
73Ta–182 _■ *
7j\y–miX
^74W–195X'
7'rW–137Χ
75Re–133 χ
75Re–135Χ
75Re–188X
75Oj–loo X
76Os–19!rn'X
76Os-191 I_^X
76Ο»–193X
77Ir–190
77Jr–192 J
77Ir–194 Lx
78Pt-191 HZ*
78Pc–193mX

-23-
"Ruio)iiKl'.d*iOrouol
IO-'CIGro'jpU
lo-*CiCrou^LU
lî#-*CiCroupIV
ro-»ci
78Pc-193
78Ft–197m X
78Pt–197 X
79Au–196
79Au–193
79Au–199• >'
EO–197
80Hj–197ra __* I
80H3-203 - X
8!Tl–200"X
81•Tl–201:-X I
81Tl–20*2 _XJ
81··.Ή–204 X
82•Pb–203 Χ
êlPb–2!0 X
82Pb–212 |X
83Bi–206X
83Bi–207 X•
83Bi–210 !X
83Β:–212 X
8-1Po–210 X
S5Ai–211 X
85Rn–220 X I
SäRn-2-22• ! X
SiRa–223
83Ra–224 X
88Ra–2-15 X
88Ra-22S ιχ I I
Sî.Ac–227 X r ■.
89Ac–22^ X
9-3Th-227 X
90in–223 Χ
90Th–230 ■x
90Th–231 X
C0TU–232 X
90Th–234 X
90Thrati4)X
91Pa–230 n*
91Pa–231 X 1'
91Pa–233 -.X
92U–2301
92U–232 X1J
(•)Onebecquerelofnaturalthoriumcorresponds to1alphadisintegrate p,r
second(0.5disintegrations persecondofTh-?32and0.5disintegrations <,er
secondofTh-228).Onecurieofnaturalttogiumcorresponds to3-7x10alphadisintegrations persecond(1.85x10,udisintegrations persecona
Th-232nnd1.85x101°disintegrations persecondofTh-223)

-24-
I|v*cî.O"<K.«irîrt 1.
Cm:p( OrvipU jC.-y.ipLit
Itl-»Ci ';1-"Ci 'I'-1CiCtonpIV
10-«Ci
mu–-*>-* ______ j
;:v'0–234 x' !
L•L s
VI'U-^5X
<ï'2U–235 j X
P2-U–238 | X
92Unal{"') [ X
Cj>Û–240+■93»Mp~240j X I
03Np-237"[«i/A
93Np–239 X.
94Pu–23.S-"j•X
9+Pu-239 •. X
94Pu–240:•■.**
94F<<–2+1 X
91Pu–'242 X"
94Pu–243 X
DlP»T-244 : X
95Am–241lΧΊ
95Α-τπ–2-12η* ■1Χ
9.5Am–242 :χΠ
95Am–2-ki__>CIJ
95Am–244- X
95Cm–242 |X
95Cm-243 x.!
55Cm–244 x- !
05.Cm–24.Î X
"95Cm–24(> X
36Cm-247 X
96Cm–248 X
yciCm-249 ι .V
97Bk–241)X
97P,k–250X
9-jCf_:»4!> X
PSCf-250 X
9HCf–251 X
93Cf-252
mCf–253 Γχ'
93Cf-254 X
9!»Es-253 X
99Es–254m *X
90F.s-254 X
■ «
(*)Onebecquerel ofnaturaluraniumcorresponds to1alphadisintegration per
cecond(0.*f89disintegrations persecondofU-238,0.^89disintegrations per
secondofU-23^and0.022disintegrations persecondofU-235).
Onecurieofnaturaluraniumcorresponds to3-7x10^®alphadisintegrations per
second(1.81x1010disintegrations persecondofU-238,1.81x1010disintegrationspersecondofU-23**and8.31x10^disintegrations persecondofU-235)*

-25-
RadionuclidesGroupI
10~7CiGroupII
10~6CijGroupIII
!10*5CiGroupIV
10"4Ci
99Es-255 X
100Fta-254 X
100Fta-255 X
100Fta-256 Χ
2.Inthecaseofthenuclides In-115,Nd-144»Rb-87,Re-187andam-147
therequirement forreporting andobtaining priorauthorization maybewaived ,
irrespective ofthequantities used.
3.Inthecaseofamixtureofradionuclides belonging todifferent radiotoxicity
groups,therequirements forreporting andobtaining priorauthorization maybe
waivedonlyifthesumoftheratiosbetweentheactivity ofeachoftheradio­
nuclides andthelimitlaiddowninparagraph 1forthegrouptowhichitbelon,-rs
islessthanorequalto1.
4«Forradioluminescent paint,therequirement forreporting andobtaining prior
authorization neednotbeappliediftheoverallactivityinradioactive subr.Uu
cesdoesnotexceed2000MBq(54mCi)oftritium,100MBq(2.7mCi)ofPra-147
or0.5MBq(14/uCi)ofReu-226,andwherethispaini;iskeptorusedforthe
manufacture orrepairoftheinstruments andtimepieces referredtoinArticle
4(c).
5.Radionuclides notincludedinthisAnnexshall,wherenecessary ,beassigned
toatoxicity groupbythecompetent authority .

**26
ALPHABETICALMSiOP"R'iEELMSNT3
M, "Mt.fr.icÎVraiixr .Nime. K«R.i«r K»mc
Ac 89 Actinium
t\z 47 Siivef
A 13 .'Aluminium
Am 95 Acnsridum
Ar *•"W .Areon •
As Arsenic .
Ac•85 Ascatirie
Au 75!;•Goid -•.
Β S :coron .
Ba 56 ■Barium
Bî.4Béryllium
Ut 83 .'Bismorh
Bk 97■Berkefium
Br.•Bromine
6 C.irbon
Ca 20 Calcium
Cd t3 Cadmium
Ce 53 Cerium
Cf 98 .Califoraium
C 17 Chlorine
Cm 56 C-urium •..•<
Co 27 Cobalt
Cr 24 Chromium
Cs 55 Caesium/Cesium
Cu 29Copper
Dy 66 Dysprosium
Er 68 Erbium
Es 99 Einsteinium
Eu 63Europium
F 9Fluorine
Fe 26 Iron
Fm .100 Fermium
Fr 87 Francium -
Ca 31 iGallium
Gd 64 Gadolinium
Ge 32 Germanium
Η 1Hydrotren
He 2Helium
Hf 72 Mafniurrt
Hg 80Mercury
Ho 67 Holmium
•53 Iodine
In 49 înditim
Ir 77 Iridium
κ 19 Potassium
Kc ■36 Krypton
i-a 57 Lanthanum
Li 3Lithium-
Lu 71 Lutecium
Md !0i fttandelevitim
MS Magnesium
Mn 25 Manganese
Mo 42MolybdenumM 7Kirro^in
Na 11 Sodium
i\'b il fciobiurn
Nd .60 Necdymiufn
Ne ■10 Neon
N■28 Nickel
No.102 NobeUum
Np 93 Neprtinium
O.SOxygen
Os •76 Osmium
Ρ 15»Phosphorus -
Pa 91 Procactmium
Pb 82 Lsad
Pd 46 Palladium
Pm 61 Promcrfuum
Po 84 Polonium
Pr 59 Praseodymium
Pc :.73 Pîacinum
Pu 9+Plutonium
Ra *88 Radium
Rb 37 Rub(dium
Re 75 Rhenium
Rh Rhodium
Rr» S6 'Radon
Ru 44 Ruthenium
s•16Sulphur
Sb .51 Antimony
5c 21 Scandtttcn
Sc 34 Selenium
Si 14 Silicon
Sm 61 Sam?r«um
Sn 50 Tîn
Sr SS.Strontium
Ta 73 Tar.ralum
To 65 Terbium
Te 43 Technetium
Te 52 Tcllurium
Th 90 Thorium
T.22 Titanium
n SI Thalliurtt
1m 69 Thulium
U'92 Uranium ■
V 23 "Vanadium
\V 74 <Tungstens
Xe*54 Xenon
Y 39 Yttrium
Yb 70 Yeterbium
Zn 30 Zinc
Zf 40 Zircouium

ANNEXII
A.Relationship betweenthequalityfactorQtadlinearenergytransfer 1^,
Lo,inwater
(keV//um)Q(*)
3*5and.less 1
7 2
23 5
53 10
175andabove 20
(*)Intermediate valuesaretobeobtained fromthecurveinFigure1.
B*Valuesofeffective qualityfactor Q
Valuesofeffective qualityfactor Qdependontheconditions ofirradiation ,aawell
aaonthetypeandenergyoftheincidentradiation .Foruniformirradiation ofthe
wholebodybyexternalirradiation ,thefollowing valuesaxetobeapplied.Thesame
valueswillusually beadequateforotherirradiation conditions .Ifothervaluesart
needed,theyar'etobecalculated fromthevaluesofQgiveninAandfromthecurves
inFigure2.
Radiation Q
X-rays,yrays,prays,electrons andpositrons
Neutrons ofunknownenergy1
10

-28-
Conversion factors (neutron fluer.ce rate ,c.-n"2s~1corresponding
toadoseequivalent ratecf1yuSvh"1arid1mrerah~1)a_nd
eflective quslicy factor Qasfunction ofneutron energvj "?
(Thefactors mayalso beused torelate neutron fluence rate
anddose equivalent index rate .)
Conversion factor ^ ^ -
Neutron energy
MeV (cm§^)per
.CuSv )
2'5•109(chernw ) 26
1•lû-* 2k
î•Î0-" .22
1"10~* 23
s•î<y~ * -■■ ■\ ?Μ
ι-ίο-* 27
!•10-* 23
2•ÎO"* : ! 17
5-10-®
1-10-»
5-10-* 1.4·
1 0.85
2 0.70
5 0.63
10! 0.68
20 . 0.65
iO 0.61
1•If;1 j 0.56
2•10- 0.51
5-10 2 0.%
î•jO1 0.22
210» 0.16
3-10» 0.1U(-2.-1.(cn 3)pei*
1(nrem h~)
250
240
220
230
240 .
270
2S0
170
S5
43
14
8-5
70
6-S
6-3
6-S
61
5-6
51
3-6
2-2
1-6
.1-4Effective
qual-ity factor
Q(2)(3).
2-3
2
2
2.
2
2
2 •
3-3
5-7
74
11
10-6
9-3
78
6-8
6-0
5-0
4-4
3-8
3-2
2-8
2-6
2-5
()j?orundirectional broad beams ofmonoenergetic neutrons atnormal
incidence . *
.(2)Atthepoint where thedoss .equivalent rate ismaximum .
(3)Intermediate values aretobsobtained frorathecurves ia
Figures 3and

-29-
-2-1DConversion factors(protjnfluencerate,cms)corresponding to
adoseequivalentrateof1^uSvh^and1mrerah-''")andeffective
qualityfactorQasfunctionofprotonenergy(l).(Thefactorsmay
alBObeusedtorelateprotonfluencerateanddoseequivalent index
rate).
«
I
Protonenergy
MeVConversionfactor(2)(3) j
Effective quality
factorQ(2)/–2–1\(cms;per
(/uSvh"1)t(-2-lx(cms;per
(mrem
2to60 0.040 0.40 1.4
21.10 0.041 0.41 1.4
1.5.10 0.042 0.42 1.4
2.10 0.043 0.43 1.4
2.5.10 0.21 2.1 1.4
23.10 0.24 2.4 1.5
4.102 .0.25 2.5 1.6
6.10 0.24 2.4 1.7
8.10 0.22 2.2 1.8
1.103 0.20 2.0 1.9
1.5.103 0.16 1.6 2.0
2.1030.14 1.4 2.1
3.103 0.11\
1.1 2.2
(1)Calculated forunidirectional broadbeamsofmonoenergetio
protons asnormalincidence
(2)Atthepointwherethedoseequivalent rateismaximum
(3)Intermediate valuesaretobeobtainedfromthecurveinfigure5.

30-
E Themethod ofevaluating theeffective doee .
Theeffective dose isequal to
Τ
Where H^,istheaverage doseequivalent intheorgan ortissue ,
Tand istheweighting factor fortheorgan ortissue ,T.
ThevalueB oftheweighting factors areshewn belowi
Gonads 0.25
Breast 0.15
Red Done marrow 0.12
Lung 0.12
Thyroid 0.03
Bone (surfaces ) 0.03
Remainder (l) 0.30
Inassessing thecontribution from this remainder ,the average
dose istobeevaluated toeach ofthefive most highly exposed
organs ortissues oftheremainder (excluding thelens oftheeye ,
♦theskin ,andthehands ,forearms ,feet andankles ).Aweighting
factor of0.06 istobeused foreach ofthese organs ortissues *
Theexposure ofallother organs canthen beneglected .

2o
15
lo
€_
p.5
8
c+-
OA
*
%Z^J
1IIIM,L–1IIIIII
10ι
L>J
LinearEnergyTransferinWater(Loo),keV/^um
FigureIsQualityfactorasfunctionofLinearEnergyTransferinWater(L<*»)

H
\\
l:
iiCMm 11!– 1IIΓΗΓΊΓΠΤ" 1!IΓΤΊΓΠ
" 1.\\ 1 »electrons
– \\ bmuon*•'■
~ \\ .•cpions.....*1.~"\ dkiions".• –\ '• 'eprotons ■ _
'\\ '•'fdcutcron'i '
15 :' .r~ ' '\\ 5triioiK,
. I XX . I TM.T-»*' I••-' -\\ hHeIon*
ialphaparticles r.–
0Γ ι!I...IΜ1Μ 11111ΜΓΙ 1––1–-1–1111'1(>O
fc
W
S
ÎS
0>10.• ■»
PnriiclccncTgy,McV
Ftwt2:Qurdhyfactor*ofchargedparticlesa$afunctionofenergy

r.eutrcn cnerry ,i-:ev.
q3■–i–[–rTrrmr~ i'm-rrrr~■1...rry'-–t–r-^-^rr,r–rT-TTrrVp^^T^'C
. - . .. -1~
- .,·. ·. . 1ν..·-
.Useupporscale * - ■'•ho5v
.io2 J– i-b^ 1 » • J ■jwE i • • . 3^
A U . ...j a>
>r i ■ •
■ • ..v.:ïX. s'»
S * : ■•■ IX J10r\j
Q, - ■ ■ 1"–11-I ■*■–*vv '1 I10•= : .• ; ..\-'H^ C « t. *x."or- - \r* ;M• <; >»Aw
1«n " " ••;!-Vw
TX.V : ; ■ +C T\v ^ , .iC\f\ . • ..• ■--8n N» ■ ■*->O.•\. • »
1 O
–•-■-i ' i tO21 – ■– :,w..
^' 1•n; ^ i ^
fe"r . •. . 1.ô ^4».. r>.V<J , ,• • .»■*W. O
Ç ' ' "«H
,x •* v \ (0c Ucelowerscale •^2» ■•'■ 1Jh
>0.1-1 IIIiIMilIiiliini Ii1iItiliII,,',U.U'l .11I.1I.Mil 11..IliI.1M-1L-L.l.IlII)£
Â i/i-l I iO .10' J03 •..<l>" ..,,gOJ0 1 .neutronenergy,McVo
I
' ' ' *»-, •''
• .• t ,«ç
Fi"urtFactorsforeonvcriingnculronHucnceroletodoseéquivalentnie!.. .!"
:"••-f•....•■
, ..i.\v;

:■·
»i■
i;
j;
1i
ίI":
ί
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Ï;;u:
H
il
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11
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MÎO
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SÏ
υ
SMi
12
101ΓΤΤΤΤΓΓ ΠΓΤΤΤΤίΤ ΓΤΤΤΠΊ1–Γτττττπ
[ί1ΓΓΓΤΠΊ ίΓΤΤρ'ΙΊ
/!1ΓΠΤ1Τ 1ΓΊΤΤΠΤ
I
' I
*1I/. ..: *
•*!'i
I1
~–_–J
i7/
,V
,i_LJLJ_LLLU L-//1111,1IMill !,·· I
]
I
I1IIMU ,i11iuniuI11.1u
\i, *
iiiniii
ii iiL,J„,U.Li.D.
neutroneuer^y,Mev :
Fi'm<1:Infectivequalityf.-.clorjjo?ncuuws

LTs
rO>
02
<u
io0Ô5
0.3
0.25
0.2
ru
ε'-ι.
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î<
υ1 111ΓΠΤ.[–!|||Γ
; I1ΓΓΙ IιIί
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ν ι
I
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1r' ■»• .•""'.**•"t
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I·IιI1ιII0. «
i_iiii11r7.C,
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ru
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0)
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protoncncrgy,McV*
Fiyvre5:Factorsforconvertingprotonfiucnceratetodou*equivalentrato

- .36-
AnnexIII
1Limitsofannualintakebyinhalation ,andderivedlimitsofconcentration ,of
radionuclides intheairinhaledforexposedworkers ,andlimitsofannualintake
byinhalation andingestion formembersofthepublic.
ThefiguresitTables'laand1bcorrespond withthelimitsofannualdoselaid
downinArticles7t8and11&rexposedworkersandmembersofthepublic.
ThefiguresinTable2arethoselaiddownintheDirective ofJune1976.
Theydonotcorrespond exactlytothelimitsofannualdoeelaiddowninArticles 7»
8and11,butasaninterimmeasurecompliance withthesevaluesshallbedeemed
toachievecompliance withthelimitsofannualdoselaiddowninArticles 7*8and11
ThevaluesofTables 1and2relatetoadults.Inthecaseofchildren
accountmustbetakenofanatomical andphysiological characteristics whichmay
requiremodification tothesevalues.
Table1a
PadionUclxdes Form
■I
"IExposedWorkers Members oftljePublic
ILiraitof
iemnualintake
by
inhalation j
"I
I
kBq jDerived
limitofthe
concentration
inairforan
exposure of
2000h/y
–kBqLimitof
ànnual
intakeby
inhalation
kBqLimitof
annual
intakeby
ingestion
kBq
*ii
hO-HOCr4*(4
•rt-rl73
-axi.ase3u
<DrH
O-O <D
a>tox
"0=+»
<D
a>x>
.CO-H
O rH
-pro
C>>3rO+>fl
ι I

α-
Table1b
E:ccossd V/orkers!, _ •I
IMembersof,thePublic |
!
i
Radionuclides IForm j
i
I
i*Lirait01j
.annual
;intakeby
Iinhalation
i
I.
4.>Derived
limitofthe
concentration
inairfor
anexposure
of2C00h/ydiraitof
annual
intake
'by
inhala­
tion;Limitofjannual \
'intakeby
ingestion
juCx /UCicm ïiCi pCi
to^e-S*
•H-H
TJr~{
CH!
<l>£>O
P«3-rl
OiHtl
•ood
ao-XXo+J
4-»
C«w
t-ooC
P­
C
c-j – 1
Table«
2
Maitturiwoub*«c'
Uotils»T Soiuof
.tO«<en»r»t ;w;«.?»^se-A4*
forei9ui<ii«J
lCOtth/rorISinîtsoC
Ibtù**byiaiwi..t<Q«ι
îimtitoX
LW»9l>/)i..*^fW
[pa !|Cim--> ..i»a -I

-38-
2 Mixture ofradionuclidoe
i'a)ifthecomposition ofthemixture isnotkao^-n butthepresence of
certain radionuclides canbepositive 1/excluded ,use&hall bemade of
thelowest limit laid down fortheradionuclides that maybepresent ;
(b)iftheexact composition ofthemixture isnotknown ,buttheradio­
nuclides inithave been identified ,useshall bemade ofthelowest
limit laid down fortheradionuclides present ;
(c)iftheconcentration andtoxicity ofoneradionuclide inthemixture
predominate ,thelimit ofannual intakes tobeused arethose given for
theradionuclide concerned inSection 1}
•'(d)when dealing with aradionuclide mixture ofknown composition oneof
thefollowing conditions shall bemet *
r■"^
or
where I.istheannual intake ofradionuclide jand I.Tisthelimit of0
annual intake ofthat radionuclide , istheannual average concentration
inairofradionuclide jand C.risthederived limit ofconcentration of&
that radionuclide inair *

-39-
ANNEXIV
ESTABLISHMENTS ANDPLANTS REFERRED TOINTHESECOND PARAGRAPH OP
ARTICLE20(a)
1.Establishments andplajntsincluding reactors andcritical
assemblies .
2.Establishments andplantsincluding accelerators andX-ray
generators .
3«Establishments andplantsincluding sealedsourcesusedinradio
therapy ,gammagraphy ,andindustrial irradiators .
4*Industrial plantsinvolving workwiththoriumandnaturalor
enriched uranium :
-uraniumrefiningplants,
-oreconcentration plants.
5.Plantsformanufacturing fuelelements .
6.Plantsforprocessing irradiated fuels.
7*Uranium andthoriummineworkings .
8.Radioactive wasteprocessing plantsandstoragesites*
9.Highactivitylaboratories andplants.