U[2.'Toxicchemicals' means: chemicals [however orwherever theyareproduced], [whether produced inplants,munitions orelsewhere] [regardless ofthemethodandpatternof production] whosetoxicproperties canbeutilized tocausedeathor temporary orpermanent harm,tomanoranimals involving:] U[2.'Toxicchemicals' means: anychemical, regardless ofitsoriginormethodofproduction which throughitschemical actiononlifeprocesses cancausedeath,temporary incapacitation, orpermanent harmtomanoranimals "Toxicchemicals aredividedintothefollowing categories:] "(a)/super-toxic lethalchemicals', whichhaveamedianlethaldose whichislessthanorequalto0.5mg/kg(subcutaneous administration) or 2,000mg-min/m3 (byinhalation) whenmeasured byanagreedmethod*/set forthin••• U(b)'otherlethalchemicals', whichhaveamedianlethaldosewhich isgreater than0.5mg/kg(subcutaneous administration) or2,000mg-min/m3 (byinhalation) andlessthanorequalto10mg/kg(subcutaneous administration) or20,000mg-min/m3 (byinhalation) whenmeasured byan agreedmethodsetforthin ,,[(c)'otherharmful chemicals', being'any [toxic] chemicals not covered by(a)or(b)aboye,[including tOXicchemicals whichnormally causetemporary incapacitation ratherthandeath][atsimilar dosesto .thoseatwhichsuper-toxic lethalchemicals causedeath].] "[and'otherharmful chemicals' hasamedianlethaldosewhichis greater th~10mg/kg(subcutaneous administration) or20,000mg-min/m 3 (byinhalation).] "3.[Permitted purposes] [Purposes notprohibited bytheConvention] [Non-hostile purposes] means: "(a)industrial, agricultural, research, medical orotherpeaceful purposes, domestic lawenforcement purposes; andmilitary purposes not connected withtheuseofchemical weapons; "~/Itwasnotedthataftersuchmeasurements hadactually been performed, thefigures mentioned inthisandthefollowing section might besubjecttoslightchangesinordertocoversulphur mustard gasunder thefirstcategory. -44-ilh oved ament ze of d of h"(b)protective purposes, namelythosepurposes directly relatedto protection against chemical weapons; ~I "4. fPrecursor ,means: achemical reagent whichtakespartintheproduction ofatoxic chemical. "(a)'KeyPrecursor' means: aprecursor whichposesasignificant risktotheobjectives ofthe Convention byvirtueofitsimportance intheproduction ofatoxic chemical. "Itmaypossess [possesses] thefollowing characteristics: "(i)itmayplay[plays] animportant roleindetermining thetoxic properties ofa[toxicchemioals prohibited bythe Convention] [super-toxic lethalchemioal]. n(11)itma~rbeusedinoneoftheohemical reaotions atthefinal stageofformation ofthe[toxicchemicals prohibited bythe Convention] [super-toxic lethalchemical]. se rn[(iii)itmay[is]notbeused.or[is]usedonlyinminimal quantities, forpermitted purposes.] ~I :h m3nKeyprecursors arelistedin••• nForthepurpose.oftherelevant provisions inaChemical Weapons Convention keypreoursors shouldbelistedandsubjeottorevisions according to[oharacteristics] [guidelines]. "Chemicals whioharenotkeypreoursors butaredeemedtoposea [threat] [particular risk]withregardtoaChemical Weapons Convention shouldbeincluded inalist. "[(b)Keycomponent ofbinaryandlormultioomponent ohemioal systems forchemical weapons means:] n[akeyprecursor whichformsatoxicohemical inthebinaryor multicomponent weapons munition ordeviceandwhiohhas thefollowing additional oharacteristios (tobeelaborated)~l n*1Thesuggestion thatsuohpermitted protective purposes should relate-only to'anadversary's useof'chemioal weapons wasremoved pending adecision onwhetherintheConvention the,question ofprohibiting other military preparations foruseofchemical weapons thanthosementioned under soopeshouldbedealtwith. n**1Onedelegation oonsiders thatthispartioular oharacteristio has primarY-importance andshouldbeplacedfirst. -45-'1 I "5.'Chemical weapons production facility' means: "_Chemical weapons production. facility means[anybuilding or equipment designed, constructed orused[inanydegree] fortheproduction ofchemical weapons] orforfilling chemical weapons. "_Chemical weapons production facility means[anybuilding or anyequipment whichinanydegreewasdesigned, constructed orused since1'January1946,for: "(a)theproduction forchemical weaponsofanytoxicchemical, exceptforthoselistedin(schedule B),ortheproduction forchemical