1、Designation: F2897 11An 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 t
2、he 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 defi
3、nes 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 ap
4、proach 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 c
5、odesare outside the scope of this specification.NOTE 1To facilitate compliance with this specification, a web basedapplication has been developed to manage and maintain unique identifiersfor certain characteristics including manufacturer identification numbers,material types, and component types as
6、specified in this document. Theweb based application also provides a calculator to help users andmanufacturers apply the base-62 encoding system outlined in this speci-fication. The URL for the website is: http:/ponentid.org.1.3 The web based application is only intended to serve asa useful resource
7、 for managing the respective manufactureridentification numbers, codes, and other identifiers as per thisspecification. Any changes to the contents of the web basedapplication are contingent upon subsequent changes to thisspecification. This specification shall have primacy.2. Referenced Documents2.
8、1 ASTM Standards:2D1600 Terminology for Abbreviated Terms Relating toPlasticsD2513 Specification for Polyethylene (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 T
9、hreads, General Purpose, Inch2.3 CFR Standards:449 CFR Part 192 Pipeline Safety Requirements3. Terminology3.1 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
10、 in this specificationis in accordance with ANSI B31.8 or 49 CFR Part 192, unlessotherwise indicated.3.3 character, 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 spe
11、cifically stated otherwise.3.5 digit, nan integer from zero (0) to nine (9).3.6 FPT, ninternal taper thread as 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 pipethre
12、ad”.3.8 traceability, nidentify the origin of materials andparts used to manufacturer a given component; and/or theproduct processing or manufacturing history.3.9 tracking, vknowing, documenting, and/or collectinginformation related to the distribution and location of a givencomponent after delivery
13、 from the manufacturer or supplier.4. Gas Distribution Component Traceability Identifier4.1 GeneralThe gas distribution component traceabilityidentifier shall be comprised of sixteen (16) alphanumericcharacters that specify respective attributes (data set) for agiven component.1This specification is
14、 under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.60 on Gas.Current edition approved Feb. 1, 2011. Published February 2011. DOI: 10.1520/F289711.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact A
15、STM 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:/www.ansi.org.4Available from
16、 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.4.1.1 The specified number of characters and order for eachdata set shall conform to Table 1.4.1.
17、2 The specified number of characters shall be developedusing the base-62 encoding system per section 4.8 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 sys
18、tems owned and maintained by the enduser.NOTE 2An 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
19、 by the webmaster of thewebsite 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 identi
20、fied bya four character code that is developed using the base-62encoding system per 4.8. 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 a
21、ndend user.4.4 Identification of Component Production DateThe pro-duction date code shall be identified by a three character codethat is developed using the base-62 encoding system per 4.8.4.5 Identification of Component MaterialThe primarymaterial used to manufacture the pipe or component shall bei
22、dentified by a single character 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 o
23、utlined in 5.6 and the base-62encoding system per 4.8.4.8 Base-62 Encoding System:4.8.1 The base-62 positional encoding system shall utilizeinteger values between zero and nine and both uppercase andlowercase alphabet characters with the assigned place values asshown in Table 2.4.8.2 The assigned pl
24、ace values shown in Table 2 shall beused to convert the initial input data into the final alphanumericcode.NOTE 3Detailed examples of converting an initial integer string to acorresponding base-62 alphanumeric character string and vice-versa canbe found in Appendix X1.NOTE 4The positional value is t
25、he 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 ManufacturerEach component manufac-turer shall establish a unique two (2) digit
26、 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 that respectivemanufacturer.5.2 Component Manufacturers Lot CodeEach compo-nent
27、manufacturer shall establish a unique seven (7) digitnumber for their lot code which shall be used as the input intothe base-62 encoding system per 4.8. The 7 digit number shallconsist of only integer values and cannot contain any othercharacters such as alphabetic or ASCII characters.NOTE 5The 7 di
28、git code can be developed freely by the 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 pertinen
29、t traceability information upon request.TABLE 1 Specified Number of Characters and Order for GasDistribution Component Traceability IdentifierData Number of Character(s)AComponent manufacturer 2Component manufacturers lot code 4Component production date 3Component material 1Component type 2Component
30、 size 3ReservedB1AThe total number of characters is based on the final resultant after applying thebase-62 encoding system in this specification. For different initial input data, therequirements and format are in Section 5 of this specification.BThis field is reserved for future use as needed.TABLE
31、 2 Positional Values for Base-62 Encoding SystemPositionalValueCharacterPositionalValueCharacter0036A1137B2238C3339D4440E5541F6642G7743H8844I9945J10 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
32、 s29 t30 u31 v32 w33 x34 y35 zF2897 1125.3 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 4.8.5.3.1 The first three digits shall correspond to the particular
33、day of the year.5.3.2 The final two digits shall correspond to the last twodigits of the year.NOTE 6For 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 manu
34、facture the respective component from Table 3.NOTE 7The 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, th
35、ecode shall be assigned from the list shown 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 facilit
36、ate a change between metallicand non-metallic 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 r
37、egardless of the piping system to whichit 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 8In previ
38、ous editions of Specification D2513 various 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 TypeE
39、ach component manufacturer shallassign a two (2) character code for their respective componenttype from Table 4.NOTE 9The component type codes will be managed by the webmasterthrough the website http:/ponentid.org. Additional code num-bers are reserved for future use and will be activated upon revis
40、ion of thisspecification.5.6 Component 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 4.8.NOTE 10A list of commonly used sizes is available on
41、the ponentid.org. Future changes and amendments 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
42、to thedimensions for a given component: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.
43、1.2 For the case of a pipe, tubing, or 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 ma
44、in.5.6.1.4 In the case of various types 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 11For the case of a 2” IPS SDR9.33 pipe, D1= D2and C1=C2= 37. Then from Eq 1, the resulting value for
45、 D = (37*378)+37+1 =14024.NOTE 12For the 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=1550.5.7 The sixteenth character shall be res
46、erved for future useas needed.5.7.1 Unless otherwise specified, the sixteenth charactershall be a null value of “0”.6. Keywords6.1 base-62 encoding system; component; gas distribution;marking; pipe; traceability; trackingTABLE 3 List of Material TypesType CodePE2406 APE2708 BPE3408 CPE3608 DPE3708 E
47、PE3710 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 113TABLE 4 List of Component TypesCategory Type General Subcategory
48、 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 28Mechanic
49、al 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 35Stab 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 follower 44Mechanical stab
