1、Designation: F2897 11aAn American National StandardStandard Specification forTracking and Traceability Encoding System of Natural GasDistribution Components (Pipe, Tubing, Fittings, Valves, andAppurtenances)1This standard is issued under the fixed designation F2897; the number immediately following
2、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 def
3、ines requirements for the data usedin the tracking and traceability base-62 encoding system andthe format of the resultant code to characterize various com-ponents used in fuel gas piping systems.1.2 The final output of this specification is a 16 digitalpha-numeric code that defines a standardized a
4、pproach ormethodology for encoding certain characteristics of compo-nents that have been established based on consensus recom-mendations from the respective stakeholder group members.The means of marking or affixing the code to the components,and the means of reading and/or transferring the data or
5、codesare outside the scope of this specification.NOTE 1To facilitate compliance with this specification, a web basedapplication has been developed to manage and maintain unique manufac-turer identification numbers. The URL for the website is: http:/ponentid.org.NOTE 2Meters and regulators are exclud
6、ed from this specificationbecause traceability marking requirements for these products are definedin ANSI B109.1.3 The web based application is only intended to serve asa useful resource for managing the respective manufactureridentification numbers, codes, and other identifiers as per thisspecifica
7、tion. Any changes to the contents of the web basedapplication are contingent upon subsequent changes to thisspecification. This specification shall have primacy.2. Referenced Documents2.1 ASTM Standards:2D1600 Terminology for Abbreviated Terms Relating toPlasticsD2513 Specification for Polyethylene
8、(PE) Gas PressurePipe, Tubing, and FittingsF412 Terminology Relating to Plastic Piping Systems2.2 ANSI Standards:3B31.8 Gas Transmission and Distribution Piping SystemB1.20.1 1983 Pipe Threads, General Purpose, InchB1092.3 CFR Standards:449 CFR Part 192 Pipeline Safety Requirements3. Terminology3.1
9、DefinitionsDefinitions are in accordance with Termi-nology F412, and abbreviations are in accordance with Termi-nology D1600, unless otherwise specified.3.2 The gas industry terminology used in this specificationis in accordance with ANSI B31.8 or 49 CFR Part 192, unlessotherwise indicated.3.3 chara
10、cter, nan integer from zero (0) to nine (9) or aletter that is upper case and/or lower case from a to z or A toZ.3.4 component, npipe, tubing, fittings, valves, and appur-tenances unless specifically stated otherwise.3.5 digit, nan integer from zero (0) to nine (9).3.6 FPT, ninternal taper thread as
11、 defined under ANSI/ASME B1.20.1, or commonly referred to as “female pipethread”.3.7 MPT, nexternal taper thread as defined under ANSI/ASME B1.20.1, or commonly referred to as “male pipethread”.3.8 traceability, nidentify the origin of materials andparts used to manufacturer a given component; and/o
12、r theproduct processing or manufacturing history.3.9 tracking, vknowing, documenting, and/or collectinginformation related to the distribution and location of a givencomponent after delivery from the manufacturer or supplier.1This specification is under the jurisdiction of ASTM Committee F17 on Plas
13、ticPiping Systems and is the direct responsibility of Subcommittee F17.60 on Gas.Current edition approved Nov. 1, 2011. Published December 2011. Originallyapproved in 2011. Last previous edition approved in 2011 as F289711. DOI:10.1520/F289711A.2For referenced ASTM standards, visit the ASTM website,
14、 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.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/ww
15、w.ansi.org.4Available from the Superintendent of Documents, U.S. Government PrintingOffice, Washington D.C. 20402.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4. Gas Distribution Component Traceability Identifier4.1 GeneralThe gas
16、 distribution component traceabilityidentifier shall be comprised of sixteen (16) alphanumericcharacters that specify respective attributes (data set) for agiven component.4.1.1 The specified number of characters and order for eachdata set shall conform to Table 1.4.1.2 The specified number of chara
17、cters shall be developedusing the base-62 encoding system per section 4.9 and theinitial input data requirements per Section 5.4.1.3 The gas distribution component traceability identifiershall be in a format suitable for downloading the charactercodes into database systems owned and maintained by th
18、e enduser.NOTE 3An illustrative example is provided in Appendix X2.4.2 Identification of Component ManufacturerEach com-ponent manufacturer shall be identified by a unique twocharacter code which shall be assigned after completing therequired registration and activated by the webmaster of thewebsite
19、 http:/ponentid.org. The manufacturer iden-tification code shall be unique to that particular company andcan only be used by that respective manufacturer/supplier.4.3 Identification of Component Manufacturers Lot CodeThe component manufacturers lot code shall be identified bya four character code th
20、at is developed using the base-62encoding system per 4.9. The four character code shall beunique in a manner to help ascertain information related to theorigin of materials, product processing history, and otherinformation that is agreed upon between the manufacturer andend user.4.4 Identification o
21、f Component Production DateThe pro-duction date code shall be identified by a three character codethat is developed using the base-62 encoding system per 4.9.4.5 Identification of Component MaterialThe primarymaterial used to manufacture the pipe or component shall beidentified by a single character
22、 code per 5.4.4.6 Identification of Component TypeEach componenttype shall be identified by a two character code per 5.5.4.7 Identification of Component SizeEach component sizeshall be identified by a three character code that is developedusing the sizing calculation outlined in 5.6 and the base-62e
23、ncoding system per 4.9.4.8 Identification of Base 62 IndexEach component typeshall be identified by a single character code per 5.7.4.9 Base-62 Encoding System:4.9.1 The base-62 positional encoding system shall utilizeinteger values between zero and nine and both uppercase andlowercase alphabet char
24、acters with the assigned place values asshown in Table 2.4.9.2 The assigned place values shown in Table 2 shall beused to convert the initial input data into the final alphanumericcode.NOTE 4Detailed examples of converting an initial integer string to acorresponding base-62 alphanumeric character st
25、ring and vice-versa canbe found in Appendix X1.NOTE 5The positional value is the value corresponding to therespective character. For example, the positional value corresponding tothe character “r” is 27. The positional value corresponding to the character“T” is 55.5. Input Data String5.1 Component M
26、anufacturerEach component manufac-turer shall establish a unique two (2) digit identifier bycompleting the required registration and activated by thewebmaster of the website http:/ponentid.org. Themanufacturer identification code shall be unique to that par-ticular company and can only be used by th
27、at company. Incases where the company undergoes a change in name,acquired, merged with another company, new two (2) digitidentifier must be registered and activated if the “aquiring” or“merged with” company does not already have a registeredidentifier.TABLE 1 Specified Number of Characters and Order
28、 for GasDistribution Component Traceability IdentifierData Number of Character(s)AComponent manufacturer 2Component manufacturers lot code 4Component production date 3Component material 1Component type 2Component size 3Base 62 Index 1AThe total number of characters is based on the final resultant af
29、ter applying thebase-62 encoding system in this specification. For different initial input data, therequirements and format are in Section 5 of this specification.TABLE 2 Positional Values for Base-62 Encoding SystemPositionalValueCharacterPositionalValueCharacter0036A1137B2238C3339D4440E5541F6642G7
30、743H8844I9945J10 a 46 K11 b 47 L12 c 48 M13 d 49 N14 e 50 O15 f 51 P16 g 52 Q17 h 53 R18 i 54 S19 j 55 T20 k 56 U21 l 57 V22 m 58 W23 n 59 X24 o 60 Y25 p 61 Z26 q27 r28 s29 t30 u31 v32 w33 x34 y35 zF2897 11a25.2 Component Manufacturers Lot CodeEach compo-nent manufacturer shall establish a unique se
31、ven (7) digitnumber for their lot code which shall be used as the input intothe base-62 encoding system per 4.9. The 7 digit number shallconsist of only integer values and cannot contain any othercharacters such as alphabetic or ASCII characters.NOTE 6The 7 digit code can be developed freely by the
32、manufacturerto define individual production lots in a unique way. Elements of the 7digit code may possibly include production site, extrusion line, injectionmolding equipment number, operator, shift, etc. The 7 digit code should becapable of providing pertinent traceability information upon request.
33、5.3 Component Production DateEach component manu-facturer shall provide the production date of the respectivecomponent consisting of five (5) digits as input into the base-62encoding system per 4.9.5.3.1 The first three digits shall correspond to the particularday of the year.5.3.2 The final two dig
34、its shall correspond to the last twodigits of the year.NOTE 7For example, the date input represented by 23410 implies the234th day of 2010.5.4 Component MaterialEach component manufacturershall assign a single character code for the primary materialused to manufacture the respective component from T
35、able 3.NOTE 8The list of material types will be managed by the webmasterof http:/ponentid.org. Additional code numbers are reserved forfuture use and will be activated upon revision of this specification.5.4.1 For pipe and tubing made from a single material, thecode shall be assigned from the list s
36、hown in Table 3.5.4.2 For multi-layer pipe and tubing, the inner most layerwhich is in contact with the natural gas shall be assigned fromthe list shown in Table 3.5.4.3 For factory assembled transition fittings and risers andtransition tees intended to facilitate a change between metallicand non-me
37、tallic piping systems, the non-metallic portion shallbe identified.5.4.4 For all components other than factory assembledtransition fittings and risers and transition tees, the materialcode shall correspond to the outer shell or body of therespective component regardless of the piping system to which
38、it is intended to be installed.5.4.5 For fittings intended to facilitate a change between PEto another thermoplastic piping systems, the material codeshall correspond to the outer shell or body of the respectivecomponent connecting to the PE pipe.NOTE 9In previous editions of Specification D2513 var
39、ious thermo-plastic materials were approved for use under CFR Part 192 requirements.For those other materials which have subsequently deleted but stillallowed to be used for repair purposes only, for example. PVC, then PEwill take precedence.5.5 Component TypeEach component manufacturer shallassign
40、a two (2) character code for their respective componenttype from Table 4.NOTE 10The component type codes will be managed by the webmas-ter through the website http:/ponentid.org. Additional codenumbers are reserved for future use and will be activated upon revision ofthis specification.5.6 Component
41、 SizeEach component manufacturer shalldevelop a unique dimensional code, D, corresponding to thesize of the respective item. The dimensional code shall be usedas input into the base-62 encoding system per 4.9.NOTE 11A list of commonly used sizes is available on the ponentid.org. Future changes and a
42、mendments for special sizesnot listed will be managed and assigned by the webmaster of the websitehttp:/ponentid.org upon amendment of this specification.5.6.1 The dimensional code shall be calculated using Eq 1based on the factors from Tables 5-7 corresponding to thedimensions for a given component
43、:D 5 C1* 378! 1 C21 1 (1)where:C1= factor corresponding to the first dimension, D1, andC2= factor corresponding to the second dimension, D2.5.6.1.1 The second dimension, D2, shall always be the largerdimension for a given component as shown in Eq 2:D2. D1(2)5.6.1.2 For the case of a pipe, tubing, or
44、 other in-linecomponents where there is no dimensional change, then D1=D2and C1= C2.5.6.1.3 For components other than various risers and tran-sition fittings or other using metallic parts, the second dimen-sion, D2, shall be expressed by the connection to the main.5.6.1.4 In the case of various type
45、s of risers and transitionfittings or others using metallic parts, the second dimension,D2, shall be expressed by the metallic size, for example, MPTor FPT.NOTE 12For the case of a 2” IPS SDR9.33 pipe, D1= D2and C1=C2= 37. Then from Eq 1, the resulting value for D = (37*378)+37+1 =14024.NOTE 13For t
46、he case of a 2” IPS SDR9.33 312 ” CTS 0.090 saddlefitting (electrofusion, molded saddle fusion, mechanical), D2= 2” IPSwith C2= 37; D1=12 ” CTS 0.090 with C1= 4. Then from Eq 1, theresulting value for D =(4*378)+37+1=1550.TABLE 3 List of Material TypesType CodePE2406 APE2708 BPE3408 CPE3608 DPE3708
47、EPE3710 FPE4608 GPE4710 HPoly (Vinyl Chloride) PVC JPolyamide 11 PA11 KPolyamide 12 PA12 LSteel MStainless Steel NCast Iron OCopper PBrass QMalleable Iron RDuctile Iron SReinforced Epoxy Resin TNylon UGlass Filled Nylon VOther XF2897 11a3TABLE 4 List of Component TypesCategory Type General Subcatego
48、ry Type CharacterPipe Other 10Straight 11Coiled 12Casing 13Coupling Other 20Socket fusion 21Socket fusion with EFV 22Electrofusion 23Electrofusion with EFV 24Mechanical compression or nut follower 25Mechanical compression or nut follower with EFV 26Mechanical stab 27Mechanical stab with EFV 28Mechan
49、ical interference fit 29Mechanical interference fit with EFV 2AWelded 2BThreaded 2CFlanged 2DAdapter Coupling Other 30Compression by male pipe thread 31Compression by female pipe thread 32Compression by butt fusion 33Compression by butt welded 34Compression by solvent welded 35Compression by stab 39Stab by male pipe thread 36Stab by female pipe thread 37Stab by solvent welded 38End caps Other 40Butt fusion 41Socket fusion 42Electrofusion 43Mechanical compression or nut
