1、Designation: E 1273 88 (Reapproved 2008)Standard Specification forColor Coding of Reusable Laboratory Pipets1This standard is issued under the fixed designation E 1273; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of la
2、st 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 a system of color coding forone-mark pipets for identification of nominal capacities, andfor g
3、raduated pipets for identification of nominal capacities andunits of sub-division.1.2 This specification applies to one-mark and graduatedpipets of the nominal capacities listed in Table 1 and Table 2,respectively.NOTE 1Many pipets not covered by other ASTM standards areincluded in Table 1 and Table
4、 2, in order, firstly, to ensure uniformity ofcolor coding as far as possible for non-standard as well as standard pipetsand, secondly, to reserve suitable codes for possible future standards forother types of pipet.2. Referenced Documents2.1 ASTM Standards:2E 1157 Specification for Sampling and Tes
5、ting of ReusableLaboratory Glassware3. Significance and Use3.1 The purpose of this specification is to ensure that if acolor code is used on pipets, all manufacturers will use thesame code; it is not intended as an encouragement of colorcoding if this is not required.4. Color Properties4.1 CodingThe
6、 color coding used on one-mark pipetsshall be in accordance with Table 1, and graduated pipets shallbe in accordance with Table 2.4.2 VariationsVariations in the enamels used in the meth-ods of application appropriate for pipets made from differenttypes of glass inevitably result in minor variations
7、 of color, andit is therefore not appropriate to specify closely the sevencolors listed in the tables.5. Marking Requirements5.1 The color code shall take the form of color bandsextending at least 150 around the circumference of the pipetand situated not more than 70 mm from the top of the pipet and
8、not less than 20 mm above the nearest graduation line.5.2 For a code consisting of a single band of color, the bandshall be 5 to 10 mm wide. For a code consisting of two bandsof color, each band shall be 3 to 5 mm wide and the two bands1This specification is under the jurisdiction of ASTM Committee
9、E41 onLaboratory Apparatus and is the direct responsibility of Subcommittee E41.01 onApparatusCurrent edition approved Nov. 1, 2008. Published January 2009. Originallyapproved in 1988. Last previous edition approved in 2003 as E 127388 (2003).2For referenced ASTM standards, visit the ASTM website, w
10、ww.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.TABLE 1 Coding System for One-Mark PipetsNominal Capacity, mL Color Code Bands0.001 1 blue0.002 2 red0.003 1 yellow0.0
11、04 2 green0.005 1 white0.01 1 orange0.015 2 blue0.02 1 black0.025 2 white0.03 2 yellow0.035 2 black0.04 2 red0.05 1 green0.075 2 orange0.1 1 blue0.15 1 white0.2 1 red0.25 2 green0.3 1 yellow0.4 2 red0.5 2 black1 1 blue2 1 orange3 1 black4 2 red5 1 white6 2 orange7 2 green8 1 blue9 1 black10 1 red15
12、1 green20 1 yellow25 1 blue30 1 black40 1 white50 1 red75 1 green100 1 yellow150 2 black200 1 blue1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.shall be separated by a space of 2 to 3 mm. Color bands do nothave to be continuous but
13、 may be broken as long as they cover40 % of the circumference of the pipet.NOTE 2Pipets calibrated to deliver by blowing out the last drop shallbe identified by a wide band or two narrow bands permanently marked ontheir top end.6. Sampling and Testing6.1 Sampling and testing shall be in accordance w
14、ith Speci-fication E 1157.7. Keywords7.1 colorcoding; laboratory; pipetsASTM 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 expressly advised that determination of the validity of
15、 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, either reapproved or withdrawn. Your comments ar
16、e 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 attend. If you feel that your comments have not rec
17、eived 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. Individual reprints (single or multiple copies)
18、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).TABLE 2 Coding System for Graduated PipetsNominal Capacity, mL Sub-division, mL Color Code Bands0.01 0.001 1
19、blue0.05 0.001 1 yellow0.1 0.001 2 green. 0.005 1 red. 0.01 1 white. 0.05 2 orange0.125 0.0125 2 yellow0.2 0.001 2 blue. 0.002 2 white. 0.01 1 black. 0.1 1 orange0.5 0.005 1 green. 0.01 2 yellow. 0.02 2 red. 0.05 2 black. 0.25 2 green1 0.01 1 yellow. 0.05 2 green. 0.1 1 red1.5 0.01 2 red2 0.01 2 white. 0.02 1 black. 0.05 2 orange. 0.1 1 green3 0.01 2 blue5 0.05 1 red. 0.1 1 blue10 0.1 1 orange15 0.1 2 green20 0.1 2 yellow25 0.1 1 white. 0.2 1 green50 0.1 2 orange. 0.2 1 black100 0.2 1 redE 1273 88 (2008)2
