Nationalindustrialchemicalsnotificationand Assessment Scheme

NA/580

December1997

NATIONALINDUSTRIALCHEMICALSNOTIFICATIONAND ASSESSMENT SCHEME

FULLPUBLICREPORT

NotifiedChemicalinMortraceMP

ThisAssessmenthasbeencompiledinaccordancewiththeprovisionsoftheIndustrialChemicals(NotificationandAssessment)Act1989(theAct),andRegulations.ThislegislationisanActoftheCommonwealthofAustralia.TheNationalIndustrialChemicalsNotificationandAssessmentScheme(NICNAS)isadministeredbyWorksafeAustraliawhichalsoconductstheoccupationalhealthsafetyassessment.TheassessmentofenvironmentalhazardisconductedbytheDepartmentoftheEnvironmentandtheassessmentofpublichealthisconductedby the Department of Health and FamilyServices.

Forthe purposes of subsection 78(1)of theAct,copies of thisfull publicreportmaybeinspectedbythepublicattheLibrary,WorksafeAustralia,92-94ParramattaRoad, CamperdownNSW 2050,between thefollowinghours:

Monday-Wednesday8.30 am - 5.00 pmThursday8.30 am - 8.00pm

Friday8.30 am - 5.00pm

Copiesofthisfullpublicreportmayalsoberequested,freeofcharge,bycontactingtheAdministration Coordinatoron thefax number below.

Forenquiriesplease contacttheAdministration Coordinatorat:

StreetAddress:92 ParramattaRd Camperdown, NSW 2050,AUSTRALIA

PostalAddress:GPOBox 58,Sydney 2001,AUSTRALIA

Telephone:(61)(02) 9577-9466 FAX(61)(02) 9577-9465

Director

ChemicalsNotificationand Assessment

NA/580

FULLPUBLICREPORT

NotifiedChemicalinMortraceMP

1.APPLICANT

PetrofinInternationalPtyLtd of 10thFloor 350 KentStSYDNEY 2000hassubmittedastandard notification statement in supportof their application for anassessment certificateforNotifiedChemical inMortraceMP.

2.IDENTITYOFTHECHEMICAL

Trade Name:MortraceMP(contains 40% on the notifiedchemical)

MethodofDetection

andDetermination:no spectral data provided

3.PHYSICALANDCHEMICALPROPERTIES

Thephysico-chemicalpropertieslistedbelow are fortheformulationto be importedcontaining 40% of the notified chemical, 30% oleic acid and30% (polyethyl)benzenesexceptwhere indicated

Appearanceat 200C

and101.3kPa:light brown wax-likepaste (notifiedchemical)

BoilingPoint:238oC

SpecificGravity:0.96

VapourPressure:<0.27kPa

WaterSolubility:insoluble

PartitionCo-efficientlogP0/W=3.6-6.6

(n-octanol/water):

HydrolysisasaFunctionnotdetermined (seecomments

ofpH:below)

DissociationConstant:not determined (seecommentsbelow)

FlashPoint:not determined

FlammabilityLimits:not flammable

AutoignitionTemperature:not determined

ExplosiveProperties:not explosive

Comments onPhysico-ChemicalProperties

Dataforthe hydrolysis,adsorption/desorptionand dissociation constant have notbeenprovided forthenotified chemical.Itisexpected thattestreports andresultsforthese data as well as water solubility and partition coefficient, or scientificargument detailingwhy test data are not required, will be providedwith thesecondarynotificationof thechemical.

The notified chemicalcontains no functionalgroups likely to undergohydrolysisinthe environmentalpH range and the amine functionalities within thechemical areexpected to have typical basicities.However, these will need to be confirmed.

4.PURITYOFTHECHEMICAL

DegreeofPurity:99.3%

ToxicorHazardousnone

Impurities:none

Non-hazardousImpurities

(>1%byweight):none

AdditiveslAdjuvants:none

5.USE,VOLUMEANDFORMULATION

Thenotified chemical isto be imported at arate of12 to15tonnes per yearforthefirstfiveyears as a 40% solutioncontaining 30% oleic acid and 30% (polyethyl)benzenes.

Theuse isas amarker ofconcessionallytaxedfuels andsolventstotestforadulterationof non-concessionally taxedfuels. Diesel fuel, distillate,leaded orunleaded petrol will not have themarker added unless specificallyclearedfor otherthan on-road use.

Fuels exempted frommarking are:

• anyfuelsclearedfor homeconsumptionin apackaged state;
• fuel oil which is coloured black;
• aviation turbinefuel; and
• aviationgasoline

Also exemptedare solventsfor applicationor use in thefollowingindustries:

• foodstuffs;
• pharmaceuticals;
• oil seed extraction;
• paint, varnish and ink manufacturing;
• mining industrywhere 100%purityis required;
• adhesives;and
• resins

Theindustrieswhich willbe using markedproductare mostlikely to be:

• home heating/lightingand industrialheating;
• rubbermanufacturing,includingtyres;
• plastics manufacturing; and
• chemicalmanufacturing

The petroleumproducts to be marked are: benzole,benzene, toluole,toluene,xylole,xylene, naphthenicand similar oils, condensate other thanfor use as arefineryfeedstock,crude oil other thanfor use as a petroleum feedstock,toppedcrudes other thanfor use as a petroleum feedstock,diesel fuel, heating oil,kerosene, gasoline, mineralturpentine, liquied parafin,wasteroil,white oil,naphthenic distillatesand solventsunder thetariffdescriptionof “otherrefined orpartly refined petroleumprouductsother than lubricants.

6.OCCUPATIONALEXPOSURE

The notified chemical willbe importedin 200 L and 20 Lsteel drums.

Thenotifiedchemicalwillbemeteredintofueltoafinalconcentrationof20ppmbyat least threemethods as disclosedby three oil companies.

Onecompanyproposestosend200Ldrumstoacontractorwhowilldispensetheimported formulationinto 100or 200 mL bottles.Thecontractor has specificsystemsinplaceforthispurposeinvolvingapumpconnectedtoanautomaticbottle filling line. Exposure to a limited residue on the drum bung and fromconnectinglinesispossible.Itisstatedthatthereshouldonlybeathinfilmofresidueinlinesfollowingbottlefilling.Thebottleswillbemanuallytippedintotankers by the driverswith asmallchance of spillage.

Analternateapproachforlargerterminalswillbetoattachapumptothe200Ldrumdirectlytoinjectionequipment.Inthiscaseexposuretoalimitedamountofresidueonbungsandinpumplinesandinjectionequipmentlinesispossible.Asimilarmethodbyasecondcompanywillinvolveuseof20Ldrumsinwhichcasetheimportedformulationwillbepumpedtoastoragetankconnectedtoinjectionequipment.Againlimitedexposuretoresiduesondrumbungsandinlinesispossible.

Inathirdcasethe 20 L drum will be decanted manually into a storagetankconnectedto injection machinery. Here there is some likelihood of accidentalspillage which may lead to ocular or dermal exposure.

Emptydrums will becollected andcleaned by alicenseddrum reconditioner.Exposure in this instanceis expected to be low.

7.PUBLICEXPOSURE

Thenotified chemical willnot be directlyavailable tothe public,andmostmembersof the public will not come into contact with concessionallytaxedfuelstreated withthemarker.Wherethe public does gain access to concessionallytaxedfuels,suchas heating oils and mineralturpentine,the low concentration of the additive (20ppm) will result in negligibleexposurelevels tothe notified chemical.

Transportof theMortraceMP additiveis unlikely toresult in significant publicexposurein the event of an accidentas thematerial is a wax-likepaste,isinsoluble in water,and has a lowvapour pressure (<0.27kPa). During atransportaccident the hazard presentedby aspill of the bulk fuel or solventtreated withMortraceMP, and thesubsequentrisktothe public,will greatly outweighany riskpresented bytheMortraceMPadditiveitself.

Additionof MortraceMPtofuel is accomplishedby either pouring therequiredquantitydirectlyinto afueltanker orinjectingit into filling lines. In either casethesmall quantities required in each operation, the non-volatilenature of the MortraceMPproduct,andthe buffer zones andsafety procedures requiredforbulk handlingofpetroleumproducts,will preventpublic exposure tothe notified chemicalfrom itsindustrialapplication.

8.ENVIRONMENTALEXPOSURERelease

Themajority importedproduct, MortraceMP, will be added tothefuels and solventproductsusing automatedadditiveinjectionequipmentand release throughthisprocess is expecteto be limited totheterminal where spills will be adsorbedontoclayor sawdust anddisposedof inaccordancewith local, state and federalregulations either at an authorisedincineratoror waste treatmentfacility.

The1 00 and 200 mL bottleswill be used tomarktanker loadsdirectly. Thecontents of the bottleswill be emptiedinto thetanker directly.

TheMaterialSafetyDataSheet(MSDS)recommendsthatofthecurrentlyavailable methods of disposalof used containers an alternative be selectedaccording tothefollowingorder of preference, based upon environmental

acceptability: (i)recycle or rework, if feasible;(ii) incinerateat an authorised facility;or(iii)treat atan acceptable waste treatmentfacility.

TheAustralian Customs Service has indicated thatmarkedsolventproductswouldbeunlikely to be soldtothe general public.

Fate

Thefateof themajority ofthenotified chemicalwill sharethefate ofthefuelsorsolvents into which itis incorporated.

Itis anticipated thatcombustion of fuelscontainingthe notified chemical will alsoresultin thecombustion of the notified chemical.Anycombustion of the notifiedchemicalis expected toresult in its decompositionand release of water and oxidesofcarbon and nitrogen.Hence,limitedenvironmentalexposureofthe notifiedchemical is expected from this use.

There appears to be considerable potentialuses where combustion willnot takeplace. For example,no detailsof the environmentalexposure from useanddisposalof solventscontainingthe notified chemical have been provided. Thechemical will be incorporatedinto thesesolvents at a low concentration and it isanticipated that because oftheir nature waste solventswill be collected anddisposedof through licensedliquid waste contractors.Againthis needsconfirmation.

No data on the biodegradationhas been providedby the notifierand it is expectedthatthis will be provided with thesecondary notification. TheMSDSfortheproductindicates, based on thepartition coefficient,that ithas the potential tobioaccumulatein aquaticorganisms. Againthe degree of this will depend on theextent of exposure tothe aquatic compartment.

9.EVALUATIONOFTOXICOLOGICALDATA

9.1AcuteToxicity

SummaryoftheacutetoxicityofthenotifiedchemicalinMortraceMP

TestSpeciesOutcomeReference

acute oral toxicityratLD50= 6.77 g.kg1(1)acute dermal toxicityrat LD50> 2.0g.kg1 (2)

skin irritatioinrabbitslight irritant(3)eye irritationrabbitslight irritation (4)

9.1.1 / OralToxicity(1)
Species/strain. / rat/Sprague-Dawley
Number/sex ofanimals:
Doses: / 5/sex/dose
3.50,4.49,5.77,7.40,9.50 g.kg-1
Observationperiod: / 14 days
Methodofadministration. / gavage

Clinicalobservationsand Mortality:

Dose(g.kg1):
Clinical / 3.50 / 4.49 / 5.77 / 7.40 / 9.50
observations:
decreasedactivity / 7/10 / 10/10 / 10/10 / 10/10 / 10/10
ataxia / 7/10 / 4/10 / 6/10 / 10/10 / 3/10
diarrhea / 10/10 / 9/10 / 8/10 / 8/10
Mortality: / 0/10 / 1/10 / 5/10 / 4/10 / 9/10

Testmethod:according toOECDguidelines (5)

LD50:5g.kg1

Result:thenotified chemical was of low acuteoraltoxicityinrats

9.1.2DermalToxicity(2)

Species/strain:rabbit/NZW

Number/sex ofanimals:3/sex

Observationperiod:14 days

Methodofadministration:2g.kg-1of the notified chemical was

appliedtothe exposedskin of eachrabbitunderocclusivedressing for24 hours

Clinicalobservations:none

Mortality:none

Morphologicalfindings:none

Testmethod:according toOECD guidelines

LD50LD50>2.0gkg-1

Result:thenotified chemical was of low dermaltoxicityinrats

9.1.3InhalationToxicity

not determined

9.1.4SkinIrritation(3)

Species/strain:rabbit/NZW

Number/sexof animals:6

Observationperiod:72 hours

Methodofadministration:0.5 mL under occluded dressing for 24hours

Draize scores(Ref):
Timeafter / Animal#
treatment1 / 2 / 3 / 4 / 5 / 6
(days)
Erythema
12a / 1 / 2 / 1 / 1 / 2
21 / 0 / 0 / 0 / 0 / 1
30 / 0 / 0 / 0 / 0 / 0

Oedemano scores above zero

aseeAttachment1forDraize scales

Testmethod:Result: / according toOECD guidelines (5)none
9.1.5 / EyeIrritation(4)
Species/strain: / rabbit/NZW
Number/sex ofanimals. / 6(one animal died on day 5 due to non-
treatmentrelatedcauses)
Observationperiod / 7 days
Methodofadministration. / 0.1 mL of thenotified chemical into the
conjunctivalsac of one eye
Testmethod: / according toOECD guidelines (5)
Result: / the notified chemical was aslight eyeirritantin rabbits; no cornea or iridal
effectswereseenupto7dayspost
instillation;theonlyconjunctivaleffectsseenwere slightredness and chemosis at
the1 hour time point in all animals
9.1.6 / SkinSensitisation / not determined

9.2RepeatedDoseToxicitynot determined

9.3Genotoxicity

9.3.1SalmonellatyphimuriumReverseMutationAssay(6)

Strains:TA1535,TA1537,TA1538,TA98and

TA100

Concentration range:100 - 10000µ.g.plate-1

Testmethod:similartoOECDguidelines (5)

Result:the notified chemical exhibitedtoxicitytowardsstrainsTA98 andTA100at 3333and 10000µg.plate-1; the notified chemicalwasnotmutagenicinthesystem eitherin

thepresenceor absence of metabolicactivation providedby rat liver S9fraction

9.4OverallAssessmentofToxicologicalData

The notified chemical was of low acute oral (LD5o>5 000 mg.kg-1) and dermal(LD502 000 mg.kg-1) toxicity inrats and rabbits,respectively.Itwas aslightskin

and eye irritantand was non-mutagenicinSalmonellatyphimurium.It would notbeclassified as hazardousaccording tothe NationalCommission’sApproved CriteriaforClassifying Hazardous

However, the notified chemical is only commercially availableas Mortrace,amixture of the notified chemical, oleic acid and naphtha.Thisformulationwould beclassified as hazardousaccording tothe NationalCommissionsApproved Criteriafor ClassifyingHazardous Substances, based on theskin and eye irritationpotential of naphtha and its ability tocause lung damage with chronic exposure.

10.ASSESSMENTOFENVIRONMENTALEFFECTS

Noecotoxicity studies have been supplied by thenotifier. It is expected thatthesewill be supplied with thesecondary notification. The importedproductis referredtoasamarinepollutantin theMaterialSafetyData Sheet(MSDS).

11.ASSESSMENT OFENVIRONMENTALHAZARD

Apreliminary assessmentofthe notified chemical indicates thattheuse ofthechemicalwill be widespreadat low levels.Limitedenvironmental release of theimported product, MortraceMP, islikely tooccur priorto adding tothefuelsorsolvents. Notified chemical whichis incorporatedinto fuels will undergocombustiontoyieldwater andoxides ofcarbon andnitrogen. Thefate ofchemicalincorporatedinto non-combustedproducts such as solventsfor use by industryisunclear. Wastesolventsare likelytobe disposed ofthroughliquid wastecontractors.

Withouta betterenvironmentalexposureprofileand aquatic toxicity data of thenotified chemical it isnot possible tocomment on theeffecton aquatic organismsor conducta properenvironmentalhazard assessment.However,it does appearfroma preliminaryassessment that little releasetothe aquatic compartmentfromits proposeduses willoccur.

Onthe basisof thesupplied information it appearsthatthepotentialenvironmentalhazard will be low.However, considerable gaps existin the dataprovidedincludingthe potentialenvironmentalexposureprofile. Thechemical is subjecttosecondarynotification in sixmonthstimeat which time it isexpected that outstandinginformationwill be provided.

12.ASSESSMENT OFPUBLIC ANDOCCUPATIONALHEALTHANDSAFETYEFFECTS

The notified chemical will be importedin 20 L or 200 L drums at aconcentration of40% in oleic acid and aromatichydrocarbon solvent.Exposure of transport andstorage workersis unlikelyexceptin the event of an accident.

A numberof methods, as describedin thesection on occupationalexposure,willbeemployed to add the notified chemical in MortraceMPtofuels and solvents.Dermalexposure and, toa lesser extent, ocular exposure toresiduesin lines, online connectors and on drum bungs, is possible. Exposure tospills when decantingsmall bottleson 20 L drums is alsopossible. Thus gloves,goggles, clothing andfootwear as describedbelow should be worn during decanting, cleaning upofspillagesand cleaning of lines andconnectors.Theriskto workersofacute toxiceffects, skin andeye irritancy and genotoxicity is expected to below basedonanimaldata. Theriskof skinsensitisation andchronictoxic effects is unknownatpresent. However, it shouldbenoted thatmostoperationsareofshort duration.

The imported formulationcontains oleic acid and solvent naphtha sothere is ariskofeye andskin irritation and acutetoxic effects if swallowed(seeMSDS).

Customs inspectors testingfuelfor adulteration shouldonly beexposed toat most8ppm ofthenotified chemical.Consequently therisk ofadversehealtheffectsduetothe notified chemical are negligible.

The general public may be exposed tofuelmarked with the notified chemical.However,at 8 ppmpublic exposureis negligibleand consequentlyso is therisk ofadversehealtheffects.

The notified chemical is likely to be of low acute toxicity and may be aslightskinandeye irritant. It isunlikely tobe mutagenicon the basisof abacterial study.Skinsensitisation and repeat dose toxicitystudies have notbeen conducted.

13.RECOMMENDATIONS

Tominimise occupationalexposure tothenotified chemical when removing andreinserting drum bungs, removing and cleaning pumps, cleaning injectionequipmentand decanting, the followingpersonalprotectiveequipmentshould beworn:

• Safetygogglesshouldbeselectedandfittedinaccordance withAustralianStandard(AS)1 336 (8)tocomply with Australian/NewZealandStandard(AS/NZS)1337(9);

• Industrialclothingshouldconformtothespecifications detailedinAS 2919(10);

• Impermeablegloves or mittensshouldconformtoAS 2161 (11);

• Alloccupational footwearshouldconformtoAS/NZS2210(12);

• Spillage of the notified chemicalshould be avoided, spillagesshould becleaned up promptlywithabsorbentswhich shouldthen be put into containersfordisposal; followingtipping ofthecontents of the100 and 200 mLbottlescontainingtheformulationto be importedinto tankers,the emptybottles shouldbereturnedtotheirsourceforreuse;

• Goodpersonalhygiene should be practised tominimisethe potential foringestion;

• Acopy of therelevantMSDSshould be easilyaccessible to employees.

All labels on formulationscontaining greater than1% of the notified chemicalshouldcarrytherisk phrases: “Maycausesensitisation by skincontact” and“Dangerof serious damage tohealth by prolongedexposure”.

14.MATERIALSAFETYDATASHEET

TheMSDSfortheformulationto be imported containingthe notified chemical wasprovided in accordancewiththe NationalCodeof PracticeforthePreparation ofMaterialSafetyDataSheets(13).

ThisMSDSwasprovided by theapplicant aspart ofthenotification statement.Itisreproducedhereas amatterof publicrecord.Theaccuracy of thisinformationremainstheresponsibility of the applicant.

15.REQUIREMENTSFORSECONDARYNOTIFICATION

UndertheAct,secondary notification of the notified chemicalshall be required ifanyof thecircumstancesstipulated undersubsection 64(2)of theActarise.

Undersection 64(1)of theAct,secondary notification of the notified chemicalshallbe required if theamount of chemical imported rises above 20 tonnes or at 6monthsfromthe date of the assessment certificate or when the outstandingmammaliantoxicologicaland environmental studiesrequiredforastandardnotificationbecome available.

Forsecondary notification, the notifierwill be requiredtosubmitthe following:

•Results andfulltestreportsforthe listed physicalandchemical dataas perPartB,Section9 of theSchedule.Theseshould include BoilingPoint, Density,VapourPressure,WaterSolubility,Hydrolysis, PartitionCoefficient,Adsorption/DesorptionandDissociationConstant. Intheabsenceof suchtestreports and resultsforthe above, the notifier should provide satisfactoryscientificargument to justify their omission.

•Thenotifierisrequiredtoaddress Part C,Sections 4,5 and 6of theSchedule.

Thisshould include resultsand fullreportsforfish, daphnia, algae and readybiodegradability testing.Intheabsenceof suchtestreportsandresultsfortheabove, the notifier should provide satisfactoryscientific argument to justify theiromission.

•Estimatesof the quantityofthe notified chemicalto beimportedover thesucceedingfouryearsis requiredunder PartB,Section5of theSchedule.

•Detailsof the approximatevolumes to be used in the various industriesarerequired,including the quantityof importedproduct to be repackaged into 1 00and 200 mL bottles.

•Estimatesofthe quantity and methodof useand disposal of solventsetc.containingthe notified chemical which are not combusted is requestedfor eachindustryin which markedsolvents will be used. Thisshould include detailsof thepotentialenvironmentalexposuresof themarkerfromsuch use.

16.REFERENCES

1.Reagan, EL.1981, AcuteOralLD5OAssayinRats, Projectno.,7090A,Foodand DrugResearchLaboratories Inc.

2.Reagan, EL.1981, AcuteDermalToxicityStudyinRats, Projectno.,7090A,Foodand DrugResearchLaboratories Inc.

3.Reagan, EL. 1981,Primary Dermal Irritation/CorrosivityinRabbits,Projectno.,7090A, FoodandDrugResearch Laboratories Inc.

4.Reagan, EL.1981,AcuteEyeIrritation/Corrosivityin Rabbits, Projectno.,7090A, Food andDrug ResearchLaboratories Inc.

5.OrganisationforEconomic Co-operationand Development 1995-1996

OECDGuidelinesfortheTestingofChemicals onCD-Rom,OECD,Paris.

6.Godek,E.G.1983,AmesSalmonella/MicrosomeAssay,Projectno.,301-fd-021-83, PharmakonResearch InternationalInc.

4.National OccupationalHealthand SafetyCommission 1994,ApprovedCriteriaforClassifyingHazardousSubstances[NOHSC:1008(1994)],AustralianGovernmentPublishingService, Canberra

5.StandardsAustralia 1994,Australian Standard 1336-1994, Eye protectionintheIndustrialEnvironment,StandardsAssociation of Australia,Sydney.

9.StandardsAustralia/Standards New Zealand 1992,Australian/NewZealandStandard1337-1992, EyeProtectorsforIndustrialApplications, StandardsAssociationof Australia/StandardsAssociation of NewZealandSydney/Wellington.

10.StandardsAustralia 1987,Australian Standard 2919-1987, IndustrialClothing, StandardsAssociation of Australia,Sydney.

11.StandardsAustralia1978,AustralianStandard2161-1978, IndustrialSafetyGloves and Mittens(excluding electricaland medical gloves),StandardsAssociationof Australia,Sydney.

12.StandardsAustralia/Standards New Zealand 1994,Australian/NewZealandStandard 2210-1994, OccupationalProtective Footwear,StandardsAssociationof Australia/StandardsAssociation of NewZealand,Sydney/Wellington.

13.National OccupationalHealthand SafetyCommission1994, NationalCodeofPracticeforthePreparationofMaterialSafetyDataSheets[NOHSC.2011(1994)],AustralianGovernmentPublishing Service, Canberra

Attachment I

The Draize Scalefor evaluationof skinreactions is as follows:

ErythemaFormation / Rating / QedemaFormation / Rating
No erythema / 0 / No aedema / 0
Veryslight erythema (barelyperceptible) / 1 / Veryslightcedema(barelyperceptible) / 1
Well-defined erythema
Moderatetosevere erythema / 2
3 / Slightoedema (edges of areawell-definedby definite raising
Moderate oedema (raised approx. 1 / 2
3
Severe erythema (beetredness) / 4 / mm)
Severe oedema (raisedmorethan1 / 4
mmand extendingbeyondareaof
exposure)

TheDraize scalefor evaluationofeye reactions is as follows:

CORNEA

Opacity / Rating / AreaofCorneainvolved / Rating
No opacity / 0 none / 25% or less (notzero) / 1
Diffuse area,detailsof iris clearlyvisible
Easilyvisibletranslucent areas, / 1slight
2mild / 25%to 500/o
50%to 75% / 2
3
details of iris slightly obscure
Opalescentareas,no detailsof iris / 3 / Greaterthan 75% / 4
visible,size of pupil barely / moderate
discernible
Opaque, irisinvisible / 4severe
CONJUNCTIVA E
Redness / Rating / Chemosis / RatingDischarge / Rating
Vessels normalVessels definitelyinjectedabovenormalMore diffuse,deeper
crimsonred withindividual vessels not / 0 none
1
slight2mod. / No swelling
Anyswelling abovenormal
Obviousswellingwithpartialeversionoflids / 0 noneNo discharge
1slightAny amountdifferentfrom normal
2mildDischargewithmoisteningof lidsandadjacenthairs / 0 none
1slight
2mod.
easilydiscernible / Svielling withlids / 3mod.Dischargewith / 3severe

Diffusebeefy red3severehalf-closedmoisteningof lidsandhairsand

Swelling withlids4severeconsiderable areahalf-closedto aroundeye

completelyclosed

IRIS

ValuesRating

Normal0 none

1slight

Noreactionto light,haemorrhage,grossdestruction2severe