ASTM E1272-2002 Standard Specification for Laboratory Glass Graduated Cylinders《带刻度的圆柱形实验室玻璃器皿的标准规范》.pdf

1、Designation: E 1272 02Standard Specification for Laboratory GlassGraduated Cylinders1This standard is issued under the fixed designation E 1272; 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

2、 parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 laboratory purposes.

3、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 purpose cylinders

4、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 listed in thisstanda

5、rd 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:E 438 Specification for Glasses in Laboratory Apparatus2E 542 Practice for Calibration of Volumetric Ware2E

6、675 Specification for Interchangeable Taper-GroundStopcocks and Stoppers2E 694 Specification for Volumetric Ware2E 920 Specification for Commercially Packaged LaboratoryApparatus2E 921 Specification for Export Packaged Laboratory Appa-ratus2E 1133 Practice for Performance Testing of Packaged Labo-ra

7、tory Apparatus for United States Government Procure-ments2E 1157 Specification for the Sampling and Testing of Reus-able Laboratory Glassware23. Classification3.1 Cylinders shall be in the following styles:3.1.1 Style I Beaded lip with pour spout,3.1.2 Style IIGround standard taper () neck, or3.1.3

8、Style IIIBeaded lip with pour spout and reinforcingbead near top.4. General Requirements4.1 Style I cylinders shall be calibrated either “to deliveror“ to contain. Style II and Style III cylinders shall becalibrated“ to contain. The cylinders shall be calibrated at20C and the volumetric tolerances s

9、hall be in accordance withTable 1. (See Practice E 542 for calibration definitions andprocedures.)4.1.1 Cylinders shall be of borosilicate glass conforming tothe requirements for Type I, Class A of Specification E 438.4.2 ShapeCylinders shall be of one piece consisting ingeneral of a top, a graduate

10、d portion of uniform diameter anda 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

11、shall bisect within 65 the center 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 sha

12、ll be hexagonal and the construc-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

13、 dimensions shall be as shown inTable 1 The glass stoppers of Style II shall conform toSpecification E 675.4.4 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

14、 parallel to each other. Adjacent 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 onLaborat

15、ory Apparatus and is the direct responsibility of Subcommittee E41.01 onApparatus.Current edition approved Oct. 10, 2002. Published November 2002. Originallypublished as E 1272 89. Last previous edition E 1272 95(1999).2Annual Book of ASTM Standards, Vol 14.04.1Copyright ASTM International, 100 Barr

16、 Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.vertical colored band fired 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 f

17、ired onto a vertical coloredetched band which has been fired into the glass. Style III shallhave graduation 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. Subd

18、ivision lines may be omitted betweenthe base of the cylinder and the first numbered line.4.5 Length of 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 b

19、e approxi-mately 65 % of the circumference of the cylinder and shallextend symmetrically at each end 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 Clas

20、s B:4.5.2.1 The length of the short lines shall not be less than10 % and not more than 20 % of the circumference 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

21、 lines.4.5.2.3 The long lines shall extend completely around thecircumference of the cylinder, but a 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 ca

22、pacity and the temperature ofcalibration (20C). Style I and Style II shall be marked either“To Deliver (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. Sa

23、mpling and Testing5.1 Refer to Specification E 1157.6. Packaging and Package Marking6.1 Select from one of Specification E 920, SpecificationE 921, or Practice E 1133.7. Keywords7.1 cylinders; glass; graduated; laboratoryASTM International takes no position respecting the validity of any patent righ

24、ts asserted in connection with any item mentionedin this standard. Users of this standard are expressly 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

25、time by the responsible technical committee and must be reviewed every five years andif not revised, 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 wil

26、l receive careful consideration at a meeting of theresponsible technical committee, which you may attend. 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 AST

27、M International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. 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

28、 through the ASTM website(www.astm.org).TABLE 1 Dimensions and TolerancesCapacity, mL MainGraduations,IntermediateLeastADistance From Scale toTop, mmMinimumWall Thick-ness, mmMaximumInnerDiameter,mmStandard Taper() StopperNumberBTolerances to Contain or toDeliver 6 mLmax minCClass A Class B5 1.0 0.5

29、 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 0.50 1.00250 20

30、.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.E1272022