ASTM_E_1047_-_85_2015.pdf

Designation:E104785(Reapproved 2015)Standard Specification forBlood Sedimentation Tube,Wintrobe,Glass,Disposable1This standard is issued under the fixed designation E1047;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.1.Scope1.1 This specification covers disposable blood sedimenta-tion tubes suitable for determining sedimentation rates and thevolume of packed red blood cells.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 The following precautionary statement pertains only tothe test method portion,Section 7 of this specification.Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2E438 Specification for Glasses in Laboratory Apparatus3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 disposable,nin accordance with this specificationand the expected product performance expressed in thisstandard,those tubes which are to be used one time only.Anyinstitution or individual who reuses a disposable tube must bearfull responsibility for its safety and effectiveness.3.1.2 Wintrobe3,nsurname of the individual responsiblefor the design of the reusable Wintrobe tube and the method ofuse for both reusable and disposable tubes.4.Classification4.1 This specification covers a tube that is intended to beused one time only.It is not to be confused with a reusable tubethat is described in other published standards.5.Materials5.1 GlassThe tubes made to this specification shall befabricated borosilicate glass,Type I,Class B,or from soda limeglass,Type II,in accordance with Specification E438.6.Physical Requirements6.1 DesignThe tube shall be made of tubing with aminimum wall thickness of 0.6 mm.The tube shall have acylindrical body terminating in a round bottom on the outsideand a flat bottom on the inside.The tube shall have a uniformbore and a fire-polished top.6.2 WorkmanshipThe tube shall be free as possible fromvisible defects which detract from its serviceability.The tubeshall be well annealed so there will be no ring strain evidentwhen tested under a polariscope.6.3 DimensionsThe tube shall be made of tubing with anoutside diameter(O.D.)of 5.0 6 0.5 mm and an insidediameter(I.D.)of 2.9 to 3.5 mm.The uniformity of the boreshall be 60.15 mm throughout the tube.The tube shall be 110to 117 mm long and have a graduated scale of 100 mm.Manufacturers have the option to place additional graduationlines on the tube to a maximum of 105 mm.Maximum overalltolerance on the total graduation scale shall be 61.0 mm.Thetube shall be legibly marked with the makers or vendorsname or mark and possess a wide color band at the top of thetube for marking purposes.6.4 Graduation ScaleThe tube shall be graduated 100 to105 6 1.0 mm in 1 mm divisions and numbered everycentimetre with two sets of numerals.One set of graduationnumerals shall be from 0 to 9 cm down the left side of thegraduation scale and the other set of graduation numerals shallbe from 1 to 10 cm up the right side of the graduation scale asshown in Fig.1.6.5 Graduation LinesThe thickness of the graduationlines may vary in uniformity but shall not exceed 0.4 mm inthickness.They shall lie at right angles to the axis of the tubewith a maximum of 0.2 mm tolerance between two adjacent1This specification is under the jurisdiction of ASTM Committee E41 onLaboratory Apparatus and is the direct responsibility of Subcommittee E41.01 onLaboratory Ware and Supplies.Current edition approved June 1,2015.Published July 2015.Originally approvedin 1985.Last previous edition approved in 2010 as E1047 85(2010).DOI:10.1520/E1047-85R15.2For 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.3Wintrobe,M.M.,“Laboratory Evaluation of Erythrocytes,”ClinicalHematology,Seventh E.,1974,pp.109134.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 lines.Every tenth(numbered)line shall be a minimum of5 mm.The medium(every fifth)line shall be a minimum of3 mm.The short(intermediate)lines shall be a minimum of2 mm.6.6 Resistance to Centrifugal ForceThe tube shall notchip,crack,or break when tested as specified in 7.2.6.7 Marking PermanencyInscriptions,graduation lines,and numerals may be printed on the tube in black,blue,green,or white coloring.The markings may not be of permanentnat