ASTM_E_1096_-_86_2011.pdf

Designation:E109686(Reapproved 2011)Standard Specification forLaboratory Glass Separatory Funnels1This standard is issued under the fixed designation E1096;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONSeparatory funnels are used in laboratories primarily for liquid extractions,and are intended tofacilitate the separation of two immiscible liquids of different densities into separate layers.Somefunnels are used to add reagent solution into a reaction vessel.They are,therefore,often provided witha tapered ground joint at the bottom of the delivery stem for joining to vessels having similarly taperedground necks.They may also be provided with pressure equalizing side arms.1.Scope1.1 This specification provides standard dimensional re-quirements for glass separatory funnels for general laboratoryuse.2.Referenced Documents2.1 ASTM Standards:2E438 Specification for Glasses in Laboratory ApparatusE671 Specification for Maximum Permissible Thermal Re-sidual Stress in Annealed Glass Laboratory ApparatusE675 Specification for Interchangeable Taper-Ground Stop-cocks And StoppersE676 Specification for Interchangeable Taper-Ground JointsE694 Specification for Laboratory Glass Volumetric Appa-ratusE911 Specification for Glass Stopcocks with Polytetrafluo-roethylene(PTFE)Plugs3.Classification3.1 Separatory funnels shall be in the following types andsizes:3.1.1 Type 1ACylindrical shape with open top.3.1.1.1 Sizes60,125,and 250 cm3.3.1.2 Type 1BCylindrical with stopper finish top.3.1.2.1 Sizes60,125,250,500,and 1000 cm3.3.1.3 Type 1CCylindrical with stopper finish top,gradu-ated.3.1.3.1 Sizes125,250,500,and 1000 cm3.3.1.4 Type 2Globe shape with stopper finish top.3.1.4.1 Sizes60,125,250,500,1000,2000,and 4000 cm3.3.1.5 Type 3Globe shape,“French,”with stopper finishtop.3.1.5.1 Sizes125,250,500,and 1000 cm3.3.1.6 Type 4Pear shape,Squibb,with stopper finish top.3.1.6.1 Sizes20,60,125,250,500,1000,2000,and 4000cm3.NOTE1The term millilitre(mL)is commonly used as a special namefor the cubic centimetre(cm3)and similarly the litre(L)for 1000 cubiccentimetres,in accordance with the International System of Units(SI).4.Materials and Annealing4.1 Separatory funnels shall be made of borosilicate glassconforming to the requirement of Type 1,Class A of Specifi-cation E438.4.2 Maximum residual thermal stress shall be such as toconform to Specification E671.5.Design5.1 Type 1 cylindrical separatory funnels shall have straightsides and comply with the dimensions given in Table 1.(Type1A stem length shall comply with Table 2.)See Fig.1,Type1A;1B;and 1C.5.2 Type 2 globe-shaped separatory funnels shall be roughlyglobular in shape and have dimensions complying with thosegiven in Table 2.See Fig.2,Type 2.5.3 Type 3 separatory funnels shall be like Type 2,however,a straight-walled portion shall be between the globe and thestopcock assembly and shall meet the dimensions listed inTable 2,except for stem length which shall have a maximumlength of 40 mm.See Fig.2,Type 3.1This specification is under the jurisdiction of ASTM Committee E41 onLaboratory Apparatus and is the direct responsibility of Subcommittee E41.01 onApparatus.Current edition approved Dec.1,2011.Published December 2011.Originallyapproved in 1986.Last previous edition approved in 2006 as E1096 86(2006)DOI:10.1520/E1096-86R11.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.4 Type 4 Squibb separatory funnels shall be pear-shapedor conical-shaped and meet the requirements of Table 3.SeeFig.2,Type 4.5.5 Type 1 and 4 separatory funnels may be supplied with ataper-ground joint below the stopcock,(see Specification E676and Fig.1C.Type 1 funnels with this feature may also havepressure equalizing tubes placed at the back or opposite side ofthe funnel when it is in the position of normal use with thehandle of the stopcock on the right.See Fig.1B).5.6 All types except Type 1A shall have stoppers or betaper-ground to receive stoppers in accordance with Specifica-tions E675 or E676.Stoppers of suitable inert plastic materialmay be permitted as an alternative to glass but must alsocomply with Specification E675.All stoppers shall bear a sizeidentification.5.7 All types shall have stopcock assemblies.They shall bedesigned to permit smooth and precise control of outflow andto meet the permissible leakage rate requirements allowed inSpecification E675.Stopcocks shall be made of glass or fromsuitable inert plastic material such as polytetrafluoroethylene(PT