Document mB8z7VYYZp2D7yGEa4Dw8vEgb

AR286 -- 0733 `SUMMARY FOR WORK PERFORMED BY THE GERMAN ARMY ON FOAM EXTINGUISHING AGENTS MANUFACTURED BY MULTIPLE COMPANIES EST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95,oras a compoon fFeC-n 20t 3. (1-Octanesulfonic acid) (CAS # 2795-39-3). Remarks: Thetest sample is FC-203. Current information indicates it is a mixture of 1.34% PFOS, 35% diethylene glycol butyl ether, 37.85% water, 20% ethylene glycol, 2.66 % Sultone foamer, 3% sodium octyl sulfate, 0.1% sodium lauryl sulfate, and 0.05% tolyltriazole. The following summary applies to a study done by the German Army forpurposesof comparing theenvironmentalpropertiesoffoam extinguishingagents from multiplecompanies, including 3M's FC203. Data may not accurately reflect theenvironmental properties of the the fluorochemical component in the test sample. STUDIES 10, 20, and 30 minute ECs for Photobacterium phosphoreum (MicrotoxTM), 72-hour ECso for growth inhibition of Fresh Water Algae (Scenedesmus subspicatus), 24-hour ECso for Daphnia magna, 48-hour LCs to zebra barbling (Brachydanio rerio), Chemical Oxygen Demand and 5-day Biochemical Oxygen Demand METHODS: Microbics Microtox "BASIC" Procedure Algae growth inhibition per EPA guidelines dated 05-06-1982 Daphnia toxicity according to DIN 38412, Part 11 Zebra barbling toxicity according to DIN 38412, Part 15 RESULTS Report Date: 3/29/90 The ECs for Photobacteriumphosporeumwas 2500 ppm. Itis not clear if. -- this is for the 10, 20, or 30 minute exposure. 000786 The 72-hour ECso Growth Inhibition for Scenedesmus subspicatus was 160 ppm. The 24-hour ECso for Daphnia magnawas 430 ppm. The 48-hour LCs for Zebra barbling (Brachydanio rerio) was 1634 ppm. `The Chemical Oxygen Demand (COD) was 41,200 mg Oz/ L `The 5-Day Biochemical Oxygen Demand (BODS) was 21,500 mg O; /L DATA QUALITY Reliability: Kiimisch ranking = 4. All study values come from a summary list only. No raw data or method documentation was available. OTHER Submitter: 3M Company, Environmental Laboratory, P.O. Box 33331, St. Paul, Minnesota, 55133 Last changed: 6/26/00 000787 zlhas(qo Germen Army Investigations of toxic effects and biological degradability of foam extinguishing agents in the waste water byEkkehardIsing + Investigations of toxic effects. ..in thewastewater Page2 1. Introduction On April 15, 1985, the FederalMinister for Intornal Afairs introduced a revised andexpandedversion ofthe IndexofWater Endangering Materials *) `Theindexlitshtes mostchiemimcalpcomopourndsatvaialablneontthemarketanddividestheminto fourwater endangering categories (WEC) according1othelr water endangering potential WECS very hamnful materials WEC2 harmiul materials WEG mildly harmiul materials _ WECO generally harmless materials All chemical materials not yet listed in the catalogue, are considered water endangering until the authorized Subcomitee for "Storage and Transporation of WaterEndangeringMaterials"attheFederalMinistryforInternalAftirs has decided about their classification. In case of mixtures of materials, the incorporation into a water endangering category is decided according to the data measured on the miu se. Atthefocusoftheevaluationofamaterialregardingitsendangering potentthieoarglafniosmrs living Inwateror using it -e.g. as a food- sitsacutetoxicty, especialy for bacteria, algae, small crayfish, fish and mammals. Tests on aquatic organisms (bioassays) are included among the procedures prescribed by the legisiature for waterandwaste water evaluation. tis generally accepted: 1. Principal, bioassays cabenreplnaceo dbyt the chemical analysis. 2 Bioassays on the one hand and chemical/physical procedures on the other, complement each other (see among others: German Unified ProcedfourWrateers, WasteWaterand Sludge Examination, DIN 38412). GHB. aeA,58Ne 11 (1969,pages 173-252 000789 . Investigations oftoxic eects... ...inthewastewater Pages During the evaluation ofthe effects of - chemical parameters, e.g. toxic materials contained in water and ~ physical parameters, &.. supply of energy, water extraction the attention shoud be paid to the use of prescribed test organisms and to the conformance to standardtest conditions. The reproducibly and statistical validity of the results shouldbesecured. "The following types of test organisms should be used in standardized bioassays in water and waste water: ~bacteria as chemoheterotrophs -alga as primary producers -protozoans as single primary and secondary consumers ~ small crayfish as mulicell consumers fish as muticell members in the consumers aquatic food with a central nervous system. At the same time, they chains and collect persistent chemicals in thei tissues. are the final `Addiionaly, certain saprobicsystemscan be used in biotests as modelsof complete ecosystems, Particularly microcosmsand ans and worms. activated sludge systems consistingofvariousbacteria, fungi, protozo- 2. Problem definition imApclceomrednitnagttioonthperodecfeidnuirtieosn,stihneFweadteerrasludpepfleynlsaewfoarncdeswaarsetferewqauteentrlhyaqnudoitnegdalsatwhIencclauudsinegofpheratrimnfeunlt materials discharges to waters and communal waste water treatment plants. Particularly during, eg. -use of extinguishing foams during trainings and actions transportation and storage of foam agent concentrates. considerable harm can be done to surtace and ground waters. 000730 Investigaotfitoxnisc eects... inthewastewater Pag4e Toevaluatethedanger potential othefoamconcentratesnotytclassified inthewaterendangering categories, their examination andmiltary-internal temporary classification into water endangering classes is necessary. The FederalOfficefor Defense Technology and Acquisition in Koblenz, has authorizedithedefensescientiicService Officeofthe FederalArmytoconductthenecessaryresearch and the subsequent temporary Amy-intemal WEC classification. The research, leading to establishing water endangering categories of foam extinguishing agent `concentrates, produces at the same time values of acute organism toxicties of the, mostly 3%, application solutions. 3. tinguishing agents and their 3:1 Total of 16 foam extinguishing agents representing 5 diferent kindsoffoam agents wera comparatively evaluated in bioassays (see 3.2) regarding acute toxictyof their application solutiontos water organisms and subdidedintowaterendangeringcategoriesfrom the pointofview oftheir concentrates. In particular: -5 muti-angs foam agents -6 fim-forming foam agents -3 protein foam agents -1fimforming fuorine-protein foam agent 1 special foamagentfor deep-fypan fires `Theformulations of thefoam extinguishing agaerepnroprtietsary Information and unavailable tothe public.Afterconsutatiwointsh manufacturers, the following materials can be listed as toxic components: - organic surfactants glycols (e.g. ethylenglycol, butyidighyco) = - preservatives organic solvents organic acids inorganic salts, 000791 Investiogfatotcieeocntss... .in thewastewater Pages Presented test results ara new and not yet revealed to the manufacturer companies. Therefore, product names cannot be published here. Hence, the result tables will have the product names substituted by class descriptions including runring tem number. 32 Listingofthebioassayused (shortdescriptionof cachtestwiththefolowingresultta-bsele4e.5 through 45). . 3:21 Bioluminescence inhibkiontestwith Photobacteria Phosphoreu In microtox analyzer, model 2055 (Beckman Co) 322 Algae growth nhibiiontestaccording to the test guidelines of federal EPA dated 05-06-1982. 3.23 Daphnia short test according to DIN'38412, Part 11. 324 Fish test accordingto DIN 38412, Pat 15. 32:5 Deterofmthiebinochaemticailaoxygnen demandbythe applicationsolutionsandthelrditionswith Water during 5 conseciive days (BOD 5). Apparatus: Sapromat B12, Voith Co. In comparison to BOD , the measurement included: chemical oxygen demand of the application solutions and thelr dilutions (COD). Apparatus: Dr.Lange dighalphotometLePr 1 W. 4. Results - Therewsilubedlesctribsedinthefolowing (chapter4.1104.7)intheformoftableswithassociated ton. 000792 . Investigationsoftoxic eflects .. ..in the wastewater Pages 4:1 The bioluminescence inhibition test with Photobacteria Phosphoreu in microtox analyzer, model 2055 by Beckman Co. 4.1.1Shortdescription ofthe test Thetest organism Photobacteria Phosphoreum ias marine bacteria. This kind of bacteria is present in immenso quantitiesinthesealayersclosetothesurfaceandcausesthesocalledmarine `phosphorescence. The underlying chemical processisalucerine-lucierase process. Damagesto the Photobactera, e.g. due to intoxications, result inthe inhibition ofthe ucierine-lucerase activy. "The end effect s the reduction of the light emission. "This, in self very simple, principle sused n the microtox analyzer: Alight transpaglrasescnaltls placed nalighttightmeasuremheeandt. The glceallcosntasins 1 ml of asuspension with Photobacteria. The ight emitted by the Photobactafrailason a photoreceptor, is converted into electric energy, ampified, displayed and recorded. `Thelightquanti emitted byaspecimen of untreatedbacteriaissetinthe splayto the value of 90%. "This quantity is tantamount o: "natural, uninhibited light emission'. Speciofmeqeuanl quantityofbacteriaandequalbacteriaqualtyWithtoxicsubstancesadded respond witha reductionofthe light emission. Accordingly, the display value lies between 90% and 0%.TheO%-value indicatesthatthe photoobftahecspetciemenrtrieataed in thisway is not capable of fight production any more. Fig. 1: Measurement arrangementofmicrotox analyzer 000793 pe Microtox- Analyzer: Measurement configuration ee -] Z| - oe Glass cell with specimen Display 3000 [1 "Tempering . gg 2 Amplifier -- = Investigationsoftoxic effects... in the wastewater Page? 4.1.2Theresuolftthse bioluminescence inhibition test with PhotobacteriaPhosphoreu aroassembled in Table 1. nthefirstresult columnare the effectiveconcentrationsof the 16testedfoamagents ina ofwater leadingto a50% inhibiotfitohne ight emissbiytohne ight bacteria (= ECS). Inthesecondresult column are ikewiseeffective concentrationsleadingtoa 10% inhibitionofthe ight emission (= EG10) and representithnegsocalledtoxicity thresholdsofthe foam agentstothe Photobacteria. `The negative decimal logaroifintdihvimdusalEC10result ater multiplicbatyitohenfactorof -1 in so called evaluation and endangering figures of the Individual foam extinguishing agents to Photobacteria Phosphoreu (see result columns 4and 5). According to the evaluation scheme of the "Commission for Evaluation of Water Endangering Materials", the determined evaluation and endangering figures (EE figures) indicate the following toxicity categories: EE figuorfe6s0and higher EE figures 4.01059 EE figures 201039 EE figuresunder 20 : Highly toxicto testorganisms. +Todototest organisms +Low toxicitytotestorganisms + Generally non-toxic totestorganisms 000795 Toran asp curs Page 7a HL Ackomioies ssECS apoEvOI habactatmptpeoshnum Phetoo Sso .si hs kc) Founsgos 4 Swornv | o TCrEomta wo MaWaoannggeoFFAA MNootz 1.s o0ss oosst WWaonagnegrFoAA NNoosd =1 117 I1s MtiangoFA Nod = s a0 FFiinntfoommeigofFgAA NNoesz || 25000 = o@n FinfomnFAg Not Pp SposaFA wo 125 2P1Y6 FimtominFgA tos | 2000 "0 wm Fos Nou | zm wo we frorogeeer fr ae2s1t8 aperr sz prass aamss | am a r a a Eye 600 5s7s s2 u"s0 aasr a a FPC2o0n46i Nhoo3a | so 15000 002000 220x400 260 2.690 229 FPiomsfnoFmiAngtoreNpartten|| 29000000 7w0o0 ssw0m0 223000 2213 3S2 poenra mez | ooo 7500 000 20 20 Com toaecreo ufo nog pr ore Pe pone oT rohacalaySX 32 | * EC10 =Effectiveconcentrationofthefoamextinguishing agentloweringtheightpowerof thephotobacteriaby 10% Investigationsoftoxic eects... ..in the wastewater Pages "The folowing evaluation of the bacteria toxity ofthe foam extinguishing agents can be concluded from these data: Hight taxi to Photobacteria are the multirange foam extinguishing agents No. 1 and 2. Toxic to photobacteria are the multirange foam extinguishing agents No. 3,4 and 5, as well as fimforming foam agents No. 2.and 6. Lowtoriciyto photobacteriarepresent thofim-formingfoamagents No. 1,3(FC4-(F2C-02036) an,d 5,the three protein foam agents, the im-formingfluorine-proteinfoam agents as well as the special foam agent for doepfy pan fires. ~ 42 Algae mutiplcation intibition tost 42.1 Theinveofaslgtaetioxicgityawetreiconodunctsedaccording tothe assay guideline "Inhibition ofthe cell mutipicationofgreen algae Scenedesmus Subspicatus CHOD"of the (German) Federal EPA dated 06.22.1982. Scenedesmus subspicatus s a single-cell autotrophic organism with vegetative multiplication. Stockculoftaiugaewrereehesld in noumr ediaiaccs ordih ngtom thete estgn uideltine andtransferred 10:afreshmediumonceawsek. Pre-cuwetruesreetusp 3daysbeforestarting eachassaytoobiain Gels in the exponential growth phase. Thexpewerrscoindumctedeassntatittesst, Le.thetostadsubstancewasaddedonce inthe desired concentration at the beginning of the Incubation. For each concentration and control 2 Erlonmoyorflaskswith 50 mi of nutional solution were sot up. The nial cel density was set to the valus between 10,000 and 15,000 cel. Thetest cultures were shaken once a day. The cell concentration was determined onthe day 0,3, 4 and7by meansofanlectroniccalcountingdevice.Thecell numbersworeusedto lothgrowth curves and to calouiate the mutipicatin inhibition which takes into consideration days 0, 3 ands -- according tothe guideline. Day 7was used for an afer-cbservation. From the concentation-effect curves, the values of EC10 and ECS0 were determined. 000797 . Investiogftaoxtiiceofenctss .. ..in the wastewater Pages 4222 The resultsofalgae growth nhibilon assayusing Scenedesmus Subspicatus wereputtogether in Tavle2. "Thetable sbu upaccordingtothesamescheme astable1. Thetoxictydetermionfaintdiiviodunal foamagentsforScenedermus Subspicatuswasconducted in thesamewayasthatforphotobacteria. All foam agents with the exception of two protein foam agents should be designated s toxic to Scenedemus Subspicatus. Bothofthe mentioned protein foam agents have onlyweaktoriciy to algae.Thespecialfoamagentsfordeep-ypanfirescanbeconsidered abordercasebetween toxic: `and weatoxkicaglentys. tisconspicuous thatoneproteinfoamagentwhichwasonlyweakly toxic in relationtobacteriaisin theupper rangeoftoxicitytoalgae,while onehighlytoxictobacteriamultrangefoamagent has been foundinthe mid-rangeoftoxicyrelativetoalgae. 000798 - -- ETAB -- EEE E E=| Eai=e ]-- . ow so a FimfominFgA No4 FC203| 160 1 169 m2 Pr | FamfominFgA NoS 105 2 2 45% 5 ] FimfominFgA No: 355 3 3 4400 a EPT: EZ WEerm R a 2EE m 1E3|EER 1m E2IEREE[2E2.]:8: g + E080 Concontatan rt tegovt 50%aorZur 2 Investigationsoftoxic effects. ...in the wastewater 43 Resultsof the Daphniashorttermassay Page 10 4.3.1 Testorganismsinthiscase a6t024-hours oidinstar of DaphniaMagna.Thetoriceffectofsubstances contained inwateron Daphnia Magnais measured as thesolutionlevelor concentration (ppm, pp) of the tested substances in which, afer testing, certain percentage of Daphnia became immobile eftectiveconcentrations for 10%and 50%oftheanimals = EGand1ECS00). Test configuration _ Ina25mibeakerflask, Smif stanwatder(asorcaldoddilationwater) wera filed, Then, 20d animals are putin leftto themselves for 24 hours without food. After that time, the old animals are removed. `The neonates releasedinthe meantime,werecountedand theevaporated water replenished. Now, miofthe toxicantsolutionareaddedintothebeakerglass.This resintuhelsoltutisonof 10 mland therefore represents the frst level of lation of the tested substance in water. Further levels are obtained n the same way. `Toinhibitthenaturalswimming activyoftheanimalsandtosecure apossibly equal substanceintake in all larvae, the test material is lft In darknessforthe next 24 hours; the counting of the stil mobile Instars folows thereafter. Control breed In parallelto each assay series, a determinationofthe EC10-Isvcaonlducuteedwith the reference substance potassiumdichromate. The quaniiies used inthis case are 0.9 - 1.9 mg/l of stock water. `Thetestresuisvalidwhen lessthan 10%ofDaphnbiecaamenimmoebiloeinnthisaconttroleasssay. 000500 Investiofgoacteifcotsn..s. .in th wastawter Page 11 4.3.2 Theresults ofDaphnia short-tteersmtarecolleincTatblee 3d. TtheocxoncfihguryatoiofniofnhdetiaagbcelnueatasgtatonDfaooplhwaisamsth csocnhduecmteeudsuedtiinkToabinlpero1.vAoluisottehstsdweithePrhmtoibnaacttofaitrohiena and green algae. AafloglremmnitunfgolrFdAteoNipof-.-do3rr,aymtaphaaegnnetnghrtoeseso,,pfraiolrtme-oifxnoirFmciAtnogafDonaaptmhhaneifagiMmae -gounrnpamt.it nogTths fheleurorrueinmnnea.iipnnrigonNtgoof.no3aFamAnahdgatveherelssoLwpet.exthcitifiyoamatl.mo Daphnia. Gbeancetrearlilay, the multi-rangeandthe film-formingfoamagentsarelesstoxic to Dapthhan nti ota he . 000801 r EEHe iEm acre -- EEF E E= =EBe=e s rBoaelr r?Z ETE 3 ET2Ee EETT 2.)T4 `Specialfoamagent 7 45 850 4.188 a1 Eppmfreab eEyDenl BEBEAIZ1ET2I1EE I2EIR/3EE(2 BGE1 g L050 =Coronationcausing50% obit horalwhehotprod :g | ** C10 =Concentration causing10%immobilityoftheanimalswithin the testperiod Investiogfatotciefofnecsts... inthewastewater Page 12 44 Reosftheufishltoxtcytsest 4.4.1 Theinvestigationofthe ihtoichyaswall sfish hokingandwaterqualtywero iagreementwith t0.h5e OcmE.CDThgeuimdoerltianlest.yTchureiznegbtrhaebaasrtbltiwnogsw(oBsrkaschoyfdtahneisoteorcikch)ohldaidnagnwaasve0r%a.ge body lengthof3.0 + TehxpeerOi;mceonnt)t.enDtanudptHrheoefixhpoetnreismtgesnotlutthieorneswwaassnodneotiecrmeianbeldoacthta=nOghe of=th4e8Ohgacnondte=nt9,6Thhe(epnHdoofftthhee test solutions was 7.6 0.2a the beginningofthe test. Thefoodsupplywassuspended24hoursbeforethastartofth tas.Tha tempeorftahtesoulurtioen `whoausr2s3.'C 0.5C with constant lightaerationthrough aglass capillary and a light/dark cycloef 16/8 Iunnedaecrhstcaotniccetnetsrtatcioonndilteivoeln,s1a0nfidshtehsewneurmabperuonftdheead10dieotretremsitnesdoltuttioen 2i4,na4185, t72eaunldgl9a6shsobuorws.! Uncertainies during the experiment were recorded. Tho 00 LCs wero calculated with a computer LG, resulted iret fromthe ost. program according to Lchtfeld and Wikoson 1949; LG, 4.4.2 The results of the fish toxicity test are compiled in Table 4. The res follows the representation and determinationof bacteria tes (600 4.1.2). the toxichy of individual foam agers to fish again algentes Ntoao.e1taornfdis,yhaarsewo,enllyasmth ufimi.fofroamaimnngafgoeagnmtasgNeon.t2saNnods 14a. nTdhe2craemnabieniangsmsulirag1n0g.ne8foeoxaidm we(FaCk-l2y09t)o,xSicatnrdan,sitihoenpraontgoien.fWoeaamklagyetnotxsiNooto.f2isahnadr3o,tahesfwiemllfaosrtmhiensgpfecoiaamlafgooanmtasgNeon.t3o(rFdCe-e2p06-,fy4 fires. The fim-forming foam `generally nontoxitcofish agent No. 1 as well a the fim-forming luorine-protein foam agent are 000803 e ma er EEEEE = E === mm EE [EEE D=o eaa= z l?1|1|Z2Z I21122 EE(L1BB2I || |E2] m- SesTeeZlrEE 2 E2E= TET[FI] gE:T remem L050 Hgpatestodconcontrtoninml, heh 50%of etekrasdd Investiogftaoxticiefofenctss... ...inthewastewater Pago 13 45 Determination of biochemical degradabily In Table , the figures of the chemical oxygen demand (COD) and the biochemical xygen demand duringthefiveconsecutivedays(BOD5),expressedinmg O,per trofwater, werecollectedfor3% application solutions ofthefoam agents. "The levelofthe biochemical degradabilty of the tested substances can be sufficiently accurately GetermthirantioeofdCODrtooBOmD 5. Inanidealcase theCOD toBOD Swouldbe 1:1, Such ratiowoulddescribe annearly quantiativebiodegradationof atestedsubstance. RatofiCOoDsto BOD 5 of 1: 0.5 signal an Insufficent biochemical degradation. `Th values presented in Table 5 point o the insufficient biochemical degradation of the mutirange foamagentsNo. 1and 4aswellasthefim-forming agNo.e3(nFC-2t06). Duthrecatiegornizatgion of theconcentratesofthesefoamagents into awaterendangeringcategory,thecharacteristicsof itnosutfhfeicnieexnttbhiiogchehremwiactaelrdeengdraadnagbeirlitnygiscactoengsoirdyer(esdoeas4n7)e.gative 'Malus") andresueidnassignment 000805 Tables: Foamoxingushaignerg OD and BOD 5offoam extinguishing agents m[CashokaOnpiaaonwaer ||mSsgaosoosrafritmeswseer 0F0a13o005 Page 13a GEovoraianoftbwoicihnaosricdnaals gee Not No2 NNooss Nos a700 17500 7400 25000 40300 20500 52800 15200 30100 25800 15040 1:085 1:07 1:02 1:088 insuticent probably inuficient sufficient Insufficient sufficient Finiomio Not 21000 No2 24300 No3FC206 26600 NoaFo208 41200 Nos, 20700 Nos 21900 FPiromtoemiTnooagmtu3Go8rPEpoira| oo Not 16000 No2 14100 Nog 17100 15700 20200 e700 21500 21100 + [ew 13300 8700 14500 1:075 sufficient 1:068 sufficient 1:03 nsufciont 1:08 probablyinsufficient 1:071 sifciont 4 | vos | sow 1:08 suficont 1:082 suffcont 1:085 sufficient g meme |femen] ww g rem co > Investigationsoftoxic eflects .. ..in the wastewater Page 14 4 Determination of the water endangering figures and classification of the tested foam extinguishing agent concentratesntowater endangering categories. 4.6.1 As already explained in tho introduction, the "Commission for Evaluation of Water Endangering Materia"considared theacutetoxicty to selocted test organisams aprimary crifotrcelasrsiificaa: tionof asubstanceor asubstance mixture nto awatorendangeringcategory. Afurther important evaluationcriteriawas the biochemical degradabilty of the substance o substance mixture under consideration. Aerconscitawitthisoonmseofthememboefrthse "CommifosrEvsaliuatoionn of Water Endanger- ing Materials" regathercladssiificnatigon of 16 foam extinguishing agent concentrates, the determi- natoifothnemammalstoxicity (LDSOora, has been waived. Instead, in addtoithetpriescoribned considerationofthe i} - acute bacteria toxicty and the acute fish toot, the acute toxitios to -algas and -viater flea were taken into consideration during the classification concentrates intowaterendangering categories. of the tested foam extinguishing agent 462 InTable 6, the evaluation figures ofthe acuta toxicities of the foam extinguishing agents tothe test organisms, are presented in columns 2 through 5. According to the methods employed by the "Comission for Evaluation of Water Endangering Materials", the arithmetic averages of the evalu ation figures consideration result in the (6th columr). so Called water endangering number (WEN) of the material under Fromthewater endangering numbers determineidnthis way, thewater endangering categories (WEC) are derived according tothefollowing schemes WENsandhigher -WECS WEN 401059 -WeC2 WEN201p39 WEC 1 WEN 1.9andlower -WECO "Tha classificationof the tested foam extinguishing agent concentrates nto thewater endangering categoriescanbetakenfomthe astcolumnofTable 6 000807 | Tabes; 1)Doertirinsaieoenofwtayta e ncana geiog r ugreens,w(Wo aEe)ae5a3n annaro erageofthe vskaton ures 2Thoresutingclassfaton nl userendanger categoriesWEG Pago 14a Foamaangusting age Evasion ursfor hosuk aeypi Bac geo onli ren enadanrgering {| endaanrger gue WER (| class WEG) MutrangFeA No.4 57 50 MMuuttiirraannFFggAAee NNoo..2 6528 N4A4 43 50 2 NAa 5429 22 MatiangFAo No1. 60 50 as FMiumtfoiraminngFgAeFA NNoo..23 5420 5510 549 49 2 a4s8 22 FimominFgA No.1 FimformiFnAg No.6 Fim forming FA No. 4 FG-203 4 a7 40 a3 2 51 43 27 a2 2 8 a5 30 39 1 SFpiemcifaolrmFiAng FA No.5 3372 4108 aat 2298" 3377 11 Fim formiFnAg No.3FC-206 29 8 3s 27 35 1 PoinFA No.3 36 52 1 ProteinFA No.2 9 23 1 PFriomtfoornmFiAngfuoriNnoe.p1rotein (| 2231 a542 2247 2200 2267 11 888< i 8@ Investiofgtoaxitceiffeoctns.s.. ...in thewastewater Page15 4.6.3 Underthepressureofthe generalactiveenvironmentalconsciousness,the questiondiscussed todatos: `Should classification of the substance concentrate into a water endangering category be based onacutetoxicity tothe mastsensitive memberof a food chain? `Shouldthisbethcase,hecategorizationfthe 16foam extinguishingagentconcentratespresented in Table 7 nto water endangering categories would be the result. 47 The biochemical degradabilty of the -multif-oramamantegrieal No1. and ~ - muki-range foam agent No. 4 Is pot sufficient. "Thisfactleadsto a downgradoiftnhge concentrates `Table 6) to thewater endangering category 3. from the water endangering category 2 (see tIaknescaoplfsatcheeelnfsruofmfictiheentwlyabtieorcheenmdiacnaglelrydienggrcaadtaebgloerfyim1-f(osremeinTgafbolaema)getnottNhoe.3w,attheredeonwdnagnrgaedriinngg category 2. 000809 mo ---------- on i| 2groaurpoofttiesntorganicsmmso.n trnda caters(VEY - pick) Eo oS ETS Bocas age ok ren WMuottiiaannggFFAeeA NNoo..12 o6z0 MitiangFAe No. se MMuuttiiaannggFFAeeA NNoo..43 s5z7 Fimioming FA No.6 is FPiomowrnmFiAngFA NNoo..22 Fimorming FA No.4 F209 570 | na s5o1 51 s9o is is | | aa0 "| wa P0n 27 2p4e i" FFamiimfoimiFFonAAgrNNoom..18iFnG2g08]a2s0 FamiominFgA No.5 a2 FSipomcaolFAfuorne prot || 2a17 iia 3pse 207 pry py 20 a"0 p2o4 QS PPoowEnnFrAA NNoots 2236 aazs 2w7s | 2s02 8 zZs i ir ar "ony || aes 620 33 ss 2 5527 22 a1 2 prsoy 22 pri 2 87 22 Ws 2 22 aasz 1' Investoifgtoaxitceiffeoctns.s.. ..in thewastewater Page 16 5. Fcionanlsiderations Prosonted ~dataoftheacutetoxictyoftheapplicationsolutionsoffoamextinguishing agostowaterorganisms. data concering biochemical degradatbiiyoffoam extinguishing agents - classification of the tested categories based on foam extinguishing agent concentrates into the water endangering arithmeticaveragesoftheevaluationfiguresoftheacutetoxictios: evaluation figuresofthe acutetoxicitiestothemostsensitive organismin eachcase have to be checked by the "Commission for EvaluationofWater Endangering Materials". `TchoensCiodmermeidscsoimopnlweitleoeivanluanteeetdhoeftfouxritchteyr idnavteasteisgtaatbiloniss.hed by the army and indicate f t should be tTihoonoexfafmoinaamtiexotniwniguliaslhsiongpagrentosaIdnvteottehiremwidnaatteieroenncdoanngceerrinngitnhcaegtepgroorcieesd.uresusedfor the classifica: EsapweocfitahletEhuaraotpoeranrCeosmumsuonfitiyntsetreasttitnsgiikne1l992t.osota precedencethatcouldafectthecommercial 000811