itwaspossible toenlargethegeneral ideaontherestrictions, theplaceof production andthemonitoring procedures inregardtothepermitted activities. Thisnewdevelopment isreflected inArticleVI,paragraphs 1,2and"where anunderstanding aboutthecontents andthestructure ofregimesinregardto thesuper-toxic lethalchemicals andkeycomponents ofbinaryand/or multicomponent chemical systemsforchemical weaponsiscontained. -77-"Inaccordance withthemandatefortheAdHocCommittee onChemical Weapons (CD/55l) thetextsagreeduponareofapreliminary natureandnot binding anydelegation atthisstageofthenegotiations. "Thecontribution oftheWorking Groupisreflected intheattached twodraftarticles: -A.-ticleII: -Article VI:Definitions andCriteria; Permitted Activities. "Article 11 "DEFINITIONS ANDCRITERIA "Forthepurposes ofthisConvention: "1.*/Theterm'chemical weapons' shallapplytothe~ollowing, together or separately: ~/ "(i)toxicchemicals, including super-toxic lethalchemicals, otherlethal chemicals, otherharmful chemicals andtheirprecursors, including key precursors andkeycomponents ofbinaryand/ormulticomponent chemical systemsforchemical weapons, exceptsuchchemicals intended for permitted purposes ~/aslongasthetypesandquantities involved areconsistent withsuchpurposes; "(ii)munitions anddevices, specifically designed tocausedeathorother harmthroughthetoxicproperties ofthosetoxicchemicals, as referred toabove,whichwouldbereleased asaresultofthe employment ofsuchmunitions anddevices; "(iii)anyequipment specifically designed forusedirectly inconnection with theemployment ofsuchmunitions ordevices; "./Thedefinitions ofchemical weaponsarepresented ontheunderstanding thatproblems relatedtoirritants usedforlawenforcement andriotcontrol, and alsotochemicals intended toenhance theeffect"oftheuseofchemical weapons iftheirinclusion intheConvention 1sagreedcouldbehandled outside the definitions ofchemical weaponsifthiswillresultinamoreclearand understandable definition. Preliminary suggestions tosolvetheseproblems are givenbelowandconsultations onthemwillbecontinued. "••/Onedelegation expressed itsreservation onthepresent formulation of thedefinition ofchemical weapons andonth~terminology usedin(i)that failed ~reflectthegeneral purposecriterion. "•••/Onedelegation suggests thattheterm'permitted.purposes' shouldbe SUbstituted, whereitoccursthroughout theConvention, withtheterm'purposes notprohibited bytheConvention' • -78-b 1 t t sor ethal ngkey emical lved ther"-[Theterm'chemical weapoDs'shall notapplytothosechemicals which arenotsuper-toxic lethal,orotherlethalchemicals andwhichareapproved by theConsultative Committee forusebyaPartyfordomestic lawenforcement and domestic riotcontrol purposes.] "-[StatesPartiesagreenotto[develop, produce, stockpile or]utilize forchemical weapons chemicals intended toenhancetheeffectoftheuseof suchweapons.] "[2.'Toxicchemicals' means: chemicals [however orwherever theyareproduced], [whether produced in plants,munitions orelsewhere] [regardless ofthemethodandpatternof production] whosetoxicproperties canbeutilized tocausedeathortemporary orpermanent harm,tomanoranimals involving:] "[2.'Toxicchemicals' means: anychemical, regardless ofitsoriginormethodofproduction which throughitschemical actiononlifeprocesses cancausedeath,temporary incapacitation, orpermanent harmtomanoranimals "Toxicchemicals aredividedintothefollowing categories:] "(a)'super...toxiclethalchemicals', whichhaveamedianlethaldosewhich islessthanorequalto0.5mg/kg(subcutaneous administration) or 2,000mg-min/m3 (byinhalation) whenmeasured byanagreedmethod ~/setforth in••• onwith ,anding '01,and iapons ie 18are ,ionof ,dbe 'poses"(b)'9therlethalchemicals', whichhaveamedianlethaldose wh~Chis greater than0.5mg/kg(subcutaneous administration) or2,000 mg-m~n/m (by inhalation) and31essthanorequalto10mg/kg(subcutaneous administration) or 20,000mg-min/m (byinhalation) whenmeasured byanagreedmethodsetforth in••• "[(c)'otherharmfulchemicals', beingany[toxic]chemicals notcovered by(a)or(b)above,[including toxicchemicals whichnormally causetemporary incapacitation ratherthandeath][atsimilar dosestothoseatwhichsuper­ toxiclethalchemicals causedeath].] "[and'otherharmful chemicals' hasamedianlethaldose ~hiChisgreater than10mg/kg(subcutaneous administration) or20,000mg-min/m (byinhalation).] 11*/Itwasnotedthataftersuchmeasurements hadactually beenperformed, thefigures mentioned inthisandthefollowing section mightbeSUbjectto. slightchangesinordertocoversulphur mustardgasunderthefirstcategory •
**Analysis**
The text appears to be discussing a treaty or convention related to chemical weapons, including definitions, categories, and restrictions on their use. The language is technical and specific, suggesting a focus on the regulation and control of chemical substances.

**Category**
Science and technology, International trade