1、Scheme for the Identification of Piping SystemsAN AMERICAN NATIONAL STANDARDASME A13.1-2007Revision of ASME A13.1-1996 (R2002)Intentionally left blank ASME A13.1-2007Revision of ASME A13.1-1996 (R2002)Scheme for theIdentification ofPiping SystemsAN AMERICAN NATIONAL STANDARDThree Park Avenue New Yor
2、k, NY 10016Date of Issuance: April 4, 2007The next edition of this Standard is scheduled for publication in 2012. There will be no addendaissued to this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Interpretations are published on
3、the ASME Web site under the Committee Pages athttp:/cstools.asme.org as they are issued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards. The Standar
4、ds Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and comment that provides an opportunity for additional public input
5、 from industry, academia,regulatory agencies, and the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with anyitems mentioned
6、 in this document, and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assume any such liability. Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights, and the ri
7、sk of infringement of such rights, isentirely their own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretat
8、ions of this document issued in accordance with the establishedASME procedures and policies, which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of th
9、e publisher.The American Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2007 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword ivCommittee Roster . vIntroduction . vi1 Object and Scope . 12 Definitions and Reference
10、s 13 Method of Identification . 1Figure1 Location of Identification Markers 2Tables1 Examples of Content Descriptions Appearing in a Legend 12 Designation of Colors 23 Size of Legend Letters . 2iiiFOREWORDThis is a revision of the Scheme for the Identification of Piping Systems, originally affirmedi
11、n 1928; reaffirmed in 1945; revised in 1956, 1975, and 1981; reaffirmed in 1985 and 1993; revisedin 1996, reaffirmed in 2002, and revised in 2007.Shortly after the turn of the twentieth century, with the resultant industrial expansion, itbecame apparent that some scheme should be devised to identify
12、 piping. In 1908, an article on“Identification of Power House Piping by Colors” was read at a meeting of The American Societyof Mechanical Engineers. In 1909, an article called “Standard Colors for Power Station Piping”was read at the meeting of the Association of Edison Illuminating Companies.In 19
13、20, the National Safety News pointed out the need for a color scheme for pipelines, andthe following year several papers were published and reports made to various committees,notably, the Prime Movers Committee of the National Electric Light Association, The AmericanSociety of Mechanical Engineers,
14、and the U.S. Navy Department.In the meantime, many large companies compiled their own scheme with no thought tostandardization of pipe colors, even in their own plants. When personnel were shifted, accidentscould and did happen.The organization of the Sectional Committee on the Identification of Pip
15、ing Systems, under theprocedure of the American Standards Association (now called the American National StandardsInstitute), took place on June 14, 1922, resulting in the 1928 publication.On August 23, 1950, the committee was reorganized to investigate the possibility of a revisionto the standard. I
16、t was felt that a revision was necessary because of the tremendous number ofdifferent materials being carried in pipes. After many meetings and much discussion, a revisionof American Standard, Scheme for Identification of Piping Systems, was approved by the sectionalcommittee and sponsors. It was th
17、en presented to the American Standards Association (nowcalled the American National Standards Institute) for approval and designation as an AmericanStandard. This was granted on January 27, 1956.In the late 1960s, the committee began discussions on the possibility of revising the 1956Standard. These
18、 discussions continued for a number of years, eventually resulting in approvalby the American National Standards Institute and designation as an American National Standardwas obtained on November 16, 1981.This edition of A13.1, which was approved by the A13 Committee and ASME, was approvedby the Ame
19、rican National Standards Institute on February 12, 2007.ivASME A13.1 COMMITTEEScheme for the Identification of Piping Systems(The following is the roster of the Committee at the time of approval of this Standard.)STANDARDS COMMITTEE OFFICERSJ. A. Ciba, Jr., ChairJ. A. Gruber, Vice ChairJ. D. Wendler
20、, SecretarySTANDARDS COMMITTEE PERSONNELJ. A. Ciba, Jr., Brady Corp.L. Moquet, Alternate, Seton Identification ProductsP. D. Flenner, Flenner Engineering ServicesD. R. Frikken, Becht Engineering Co.J. A. Gruber, Wheatland Tube Co.R. F. Heisler, Jr., Air Products and at intervals on straight pipe run
21、s sufficientfor identification. Identification may be accomplishedby stenciling, the use of tape, or markers. In any situa-tion, the number and location of identification markersshall be based on the particular piping system.3.2 ColorColor should be used to identify the characteristichazards of the
22、contents. Color should be displayed on,or contiguous to, the piping by any physical means, butits use shall be in combination with legend. Color maybe used in continuous, total length coverage or in inter-mittent displays. Colors preceded by the word “Safety”shall meet the requirements of ANSI Z535.
23、1. See Table 2.ASME A13.1-2007Table 2 Designation of ColorsFire quenching fluidsToxic and corrosive fluidsFlammable fluidsCombustible fluidsPotable, cooling, boiler feed, and other waterCompressed AirTo be defined by the userTo be defined by the userTo be defined by the userTo be defined by the user
24、Safety redSafety orangeSafety yellowSafety brownSafety greenSafety blueSafety purpleSafety whiteSafety graySafety blackWhiteBlackBlackWhiteWhiteWhiteWhiteBlackWhiteWhiteLettersLettersLettersLettersLettersLettersLettersLettersLettersLettersBackgroundColorColor andLetter SampleLetter ColorFluid Servic
25、eFig. 1 Location of Identification MarkersLEGENDLEGENDLEGENDALEGENDB3.3 VisibilityAttention shall be given to visibility with reference topipe markings. Where pipelines are located above orbelow the normal line of vision, the lettering shall beplaced below or above the horizontal centerline of thepi
26、pe. See Fig. 1.3.4 Type and Size of LettersContrast shall be provided between color field andlegend for readability. Use of letters of standard style,1in sizes12in. (13 mm) and larger, is recommended. SeeTable 3 for specific size recommendations. For identifica-tion of materials in pipes of less tha
27、n34in. (19 mm) indiameter, and for valve and fitting identification, theuse of a permanently legible tag is recommended.1Sans serif gothic bold lettering provides high readability.2Table 3 Size of Legend LettersOutside Diameter of Pipe Length of Color Size of Letters,Covering, in. (mm) Field, A, in.
28、 (mm) B, in. (mm)34to 114(19 to 32) 8 (200)12(13)112to 2 (38 to 51) 8 (200)34(19)212to 6 (64 to 150) 12 (300) 114(32)8 to 10 (200 to 250) 24 (600) 212(64)Over 10 (over 250) 32 (800) 312(89)3.5 Unusual or Extreme SituationsWhen the piping layout creates or occurs in a limitedarea of inaccessibility o
29、r of extreme complexity, suchsegments of layouts may require substitute techniquesto achieve positive identification. Use of substitute tech-niques shall be limited to such segments and shall notdeviate from the concept of identification described inparas. 3.1, 3.2, and 3.3.Intentionally left blank L03307ASME A13.1-2007
