ASTM E1272-2002(2012) Standard Specification for Laboratory Glass Graduated Cylinders《实验室玻璃量筒的标准规范》.pdf

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1、Designation: E1272 02 (Reapproved 2012)Standard Specification for Laboratory GlassGraduated Cylinders1This standard is issued under the fixed designation E1272; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revis

2、ion. 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 requirements for glass gradu-ated cylinders for precision and general purpose grades suitablefor labor

3、atory purposes.1.1.1 Class AEach cylinder of precision grade shall bemarked with the letter “A” to signify compliance with appli-cable construction and accuracy requirements. Cylinders maybe marked with an identification number (serial number) at theoption of the manufacturer.1.1.2 Class BGeneral pu

4、rpose cylinders are of the samebasic design as Class A cylinders. However, volumetric toler-ances for Class B cylinders shall be within twice the specifiedrange allowed for Class A cylinders. These cylinders need notbe marked with their class designation.1.1.3 Product with a stated capacity not list

5、ed in thisstandard may be specified in class A tolerance when productconforms to the tolerance range of the next smaller volumetricstandard product listed in Table 1.2. Referenced Documents2.1 ASTM Standards:2E438 Specification for Glasses in Laboratory ApparatusE542 Practice for Calibration of Labo

6、ratory VolumetricApparatusE675 Specification for Interchangeable Taper-Ground Stop-cocks And StoppersE920 Specification for Commercially Packaged LaboratoryApparatusE921 Specification for Export Packaged Laboratory Appa-ratusE1133 Practice for Performance Testing of Packaged Labo-ratory Apparatus fo

7、r United States Government Procure-mentsE1157 Specification for Sampling and Testing of ReusableLaboratory Glassware3. Classification3.1 Cylinders shall be in the following styles:3.1.1 Style IBeaded lip with pour spout,3.1.2 Style IIGround standard taper () neck, or3.1.3 Style IIIBeaded lip with po

8、ur spout and reinforcingbead near top.4. Requirements4.1 Style I cylinders shall be calibrated either “to deliver” or“to contain.” Style II and Style III cylinders shall be calibrated“to contain.” The cylinders shall be calibrated at 20C and thevolumetric tolerances shall be in accordance with Table

9、 1. (SeePractice E542 for calibration definitions and procedures.)4.1.1 Cylinders shall be of borosilicate glass conforming tothe requirements for Type I, Class A of Specification E438.4.2 ShapeCylinders shall be of one piece consisting ingeneral of a top, a graduated portion of uniform diameter and

10、a base. The shape shall permit complete emptying and thor-ough cleaning. The pour-out of Style I, in sizes of 1000 mL andbelow, shall be located in a vertical plane bisecting within 65one of the corners on the hexagonal base. For sizes 2000 mLand above, the pour-out shall bisect within 65 the center

11、 ofone of the flat section or one of the corners of the base. Thepour-out of Style III shall not protrude beyond the glassreinforcing bead with construction such that, upon falling, thebead shall strike a flat surface before the pour-out or lip.4.2.1 BaseThe base shall be hexagonal and the construc-

12、tion shall be such that the empty cylinder (without stopper forStyle II), in capacities above 10 mL, shall stand on a surfaceinclined 15 with the horizontal and, in capacities of 10 mL orless, shall stand on a surface inclined 10 with the horizontal.4.3 DimensionsThe dimensions shall be as shown inT

13、able 1 The glass stoppers of Style II shall conform toSpecification E675.4.4 Graduation MarkingsGraduation markings shall besharply defined lines of uniform width not more than 0.4 mm.Graduation markings shall be perpendicular to the vertical axisof the cylinder and parallel to each other. Adjacent

14、graduationmarkings shall be spaced at least 1 mm from center to center.Markings shall be applied by one of the following methods:etched and filled with a permanent pigment; etched through a1This specification is under the jurisdiction of ASTM Committee E41 onLaboratory Apparatus and is the direct re

15、sponsibility of Subcommittee E41.01 onApparatus.Current edition approved Nov. 1, 2012. Published November 2012. Originallyapproved in 1989. Last previous edition approved in 2007 as E1272 02(2007).DOI: 10.1520/E1272-02R12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontac

16、t 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 States1vertical colored band fir

17、ed into the glass; or by application ofa stain which is fired into the glass without etching; or byapplication of enamel fired into the glass without etching; or byapplication of an enamel which is fired onto a vertical coloredetched band which has been fired into the glass. Style III shallhave grad

18、uation markings etched through a vertical red coloredband fired into the glass. The value of all main graduationsshall be suitably inscribed in Arabic numerals directly abovethe line referenced. Subdivision lines may be omitted betweenthe base of the cylinder and the first numbered line.4.5 Length o

19、f Graduation Lines:4.5.1 Class A:4.5.1.1 The length of the short lines shall be approximatelybut not less than 50 % of the circumference of the cylinder.4.5.1.2 The length of the medium lines shall be approxi-mately 65 % of the circumference of the cylinder and shallextend symmetrically at each end

20、beyond the end of the shortlines.4.5.1.3 The long lines shall extend completely around thecircumference of the cylinder, but a gap, not exceeding 10 % ofthe circumference, may be permitted.4.5.2 Class B:4.5.2.1 The length of the short lines shall not be less than10 % and not more than 20 % of the ci

21、rcumference of thecylinder.4.5.2.2 The length of the medium lines shall be approxi-mately 1.5 times the length of the short lines and shall extendsymmetrically at each end beyond the end of the short lines.4.5.2.3 The long lines shall extend completely around thecircumference of the cylinder, but a

22、gap, not exceeding 10 % ofthe circumference, may be permitted.4.6 Identification MarkingsEach graduated cylinder shallbe permanently and legibly marked with the manufacturersname or trademark, the capacity and the temperature ofcalibration (20C). Style I and Style II shall be marked either“To Delive

23、r (TD) or “To Contain” (TC) and Style III shall bemarked “To Contain” (TC). Optionally, cylinders may beadditionally marked with the international symbol “EX” for“To Deliver” or “IN” for “To Contain.”5. Sampling and Testing5.1 Refer to Specification E1157.6. Packaging and Package Marking6.1 Select f

24、rom one of Specification E920, SpecificationE921, or Practice E1133.7. Keywords7.1 cylinders; glass; graduated; laboratoryASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expre

25、ssly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised

26、, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may a

27、ttend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States

28、. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be se

29、cured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 1 Dimensions and TolerancesCapacity, mL MainGraduations,IntermediateLeastADistance From Scale toTop, mmMinimumWall Thick-ness, mmMaximumInnerDiameter,mmStandard Taper() StopperNumberBTolerances to Contain or toDeliver mLmax minCClass A Clas

30、s B5 1.0 0.5 0.1 50 20 0.9 11.2 9 0.05 0.1010 1.0 0.5 0.1 60 20 1.0 15.2 9 0.10 0.2010 1.0 . 0.2 60 20 1.0 15.2 13 0.10 0.2025 2.0 1.0 0.2 80 20 1.1 18.5 13 0.17 0.3425 5.0 1.0 0.5 60 20 1.1 19.3 13 0.17 0.3450D5.0 or 10.0 5.0 1.0 80 20 1.2 23 16 0.25 0.50100 10.0 5.0 1.0 80 20 1.3 29.6 16 or 22 0.5

31、0 1.00250 20.0 10.0 2.0 100 30 1.5 42.4 22 or 27 1.00 2.00500 50.0 25.0 5.0 100 35 1.6 50.8 27 or 32 2.00 4.001000 100.0 50.0 10.0 110 45 2.0 63 32 3.00 6.002000 200.0 100.0 20.0 125 50 2.0 82.1 38 6.00 12.004000 500.0 250.0 50.0 130 50 2.2 110 . 14.50 29.00ALines below the first numbered line may be omitted.BApplies to Style II only.CFor Style II, measurement is to bottom of stopper.DMain graduations may be each 5 or 10 mL. If main graduations are each 5 mL, intermediate graduations do not apply.E1272 02 (Reapproved 2012)2