1、Designation: D3567 17 An American National StandardStandard Practice forDetermining Dimensions of “Fiberglass” (Glass-Fiber-Reinforced Thermosetting Resin) Pipe and Fittings1This standard is issued under the fixed designation D3567; the number immediately following the designation indicates the year
2、 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.This standard has been approved for use by agencies of the U.S. Depa
3、rtment of Defense.1. Scope*1.1 This practice covers the determination of outsidediameter, inside diameter, total wall thickness, reinforced wallthickness, liner thickness (where applicable), and length di-mensions of “fiberglass” (glass-fiber-reinforced thermosettingresin) pipe. Included are procedu
4、res for measuring tapereddimensions and taper angles for pipe intended to be joined bytapered socket fittings, and procedures for gaging internal andexternal threads.1.2 This practice also includes procedures for determiningdimensions for fiberglass pipe fittings.1.3 The values stated in inch-pound
5、units are to be regardedas the standard. The SI units given in parentheses are forinformation only.NOTE 1There is no known ISO equivalent to this standard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of
6、this standard to establish appro-priate safety, health and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the De
7、cision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D4166 Test Method for Measurement of Thickness of Non-magnetic Materials by Mea
8、ns of a Digital MagneticIntensity Instrument (Withdrawn 2008)32.2 ANSI Standard:B 2.1 Pipe Threads (Except Dryseal)42.3 API Standard:API 5B Threading, Gaging, and Thread Inspection ofCasing, Tubing, and Line Pipe Threads53. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 deviatio
9、n from straightnessthe maximum deviationfrom a straight line exhibited by a pipe specimen divided by thelength of the specimen.3.1.2 fiberglass pipea tubular product containing glass-fiber reinforcements embedded in or surrounded by curedthermosetting resin; the composite structure may containaggreg
10、ate, granular, or platelet fillers, thixotropic agents,pigments, or dyes; thermoplastic or thermosetting liners orcoatings may be included.3.1.3 laying length of fittingsthe actual increase in thelength of a line afforded by the fitting when installed.3.1.4 liner and exterior surface layer thickness
11、esthe innerand outer portions of the wall used to enhance chemical andwater resistance; they may have a different composition thanthe reinforced wall and the thicknesses of these internal andexternal surfaces may be measured when their boundary limitsare visually indentifiable and if they are each a
12、t least 0.005 in.(0.10 mm) in thickness.3.1.5 reinforced thermosetting resin pipe (RTRP)a fiber-glass pipe without aggregate.3.1.6 reinforced wall thicknessthe total wall thicknessminus the liner or exterior surface layer thickness, or both.1This practice is under the jurisdiction ofASTM Committee D
13、20 on Plastics andis the direct responsibility of Subcommittee D20.23 on Reinforced Plastic PipingSystems and Chemical Equipment.Current edition approved Sept. 1, 2017. Published September 2017. Originallyapproved in 1977. Last previous edition approved in 2011 as D3567 97(2011).DOI: 10.1520/D3567-1
14、7.2For referenced ASTM standards, visit the ASTM website, 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.3The last approved version of this historical standard is r
15、eferenced onwww.astm.org.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.5Available from American Petroleum Institute (API), 1220 L. St., NW,Washington, DC 20005-4070, http:/api-ec.api.org.*A Summary of Changes section ap
16、pears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Princ
17、iples for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.14. Significance and Use4.1 This practice provides for determining the physicaldimensions of fiberglass pipe and fittings. This practice
18、issuitable for determination of dimensional compliance withproduct specifications.5. Conditioning5.1 Test conditions for measurements shall be in accordancewith appropriate product specification(s).6. Total Wall ThicknessPipe and Fittings6.1 ApparatusCalipers, optical comparators described inSection
19、 7, ultrasonic thickness meters, or other gages such asthe digital magnetic intensity instrument described by TestMethod D4166, with graduations of 0.01 in. (0.025 mm) or lessthat produces a thickness measuring accuracy of within 5 %,may be used for measuring thicknesses of 0.20 in. (5.1 mm) orgreat
20、er. For thicknesses less than the above, use a micrometeror other gage with graduations of 0.001 in. (0.025 mm) and anaccuracy of within 5 %. Use a cylindrical tubing micrometer orspherical anvil micrometer with a radius end where thediameter of the pipe is small and a measuring error of 5 % orless
21、would be exceeded without its use.6.2 ProcedureMake a series of at least four readings atrandom selected locations, approximately equally spacedaround the circumference. The location of the measurementsshould be taken some distance in from the pipe ends if the endthickness would be expected to be gr
22、eater than other regions ofthe pipe.NOTE 2Take care to ensure that the measurements are not made ateither a tapered or belled pipe end.NOTE 3Take care to avoid misalignment of the anvil with thelongitudinal axis of the specimen when using cylindrical anvil microm-eters that may bridge specimen surfa
23、ce curvature or indentations and givefalsely high readings.6.3 CalculationCalculate the average total wall thicknessof the four or more thicknesses taken.6.4 ReportThe report shall include the following:6.4.1 Observed minimum and maximum wall thickness, and6.4.2 Calculated average total wall thickne
24、ss.7. Reinforced Wall Thickness and Liner ThicknessesPipe and Fittings7.1 SamplingWhen performed on finished pipe or fittings,this procedure will usually destroy or damage the part. Whenthis procedure is to be used for quality control or sampling, itis intended for use on samples taken from the exce
25、ss of thefabrication, such as the ends of pipe or fittings, or both. If theprocedure requires destructively testing the pipe or fittings, therequirements shall be agreed upon between the buyer and theseller.7.2 ApparatusAn optical scale comparator witha7to10X magnification and having a reticle gradu
26、ated as follows:7.2.1 For products with liner measurements less than 0.050in. (1.27 mm): 0.001-in. (0.025-mm) divisions or not more than10 % of liner thickness, whichever is smaller.7.2.2 For products with liner measurements 0.050 in. (1.27mm) or larger: 0.005-in. (0.13-mm) divisions or smaller.7.3
27、Procedure:7.3.1 Surface PreparationAt the desired cross section ofthe pipe or fitting, make a sawcut at right angles to the insidesurface. Remove burrs and sand the cut surface smooth, using200-grit (or finer) sandpaper. Thoroughly wash the sandedsurface with clean water to remove resin and glass du
28、st, thenblot dry.7.3.2 Reinforced Wall and Liner ThicknessMeasure thecut surface of the pipe or fitting by setting a major scaledivision of the reticle at the apparent interface between theliner and reinforced wall. Make 6 measurements 60 apart asfollows:7.3.2.1 Read toward the outer surface of the
29、pipe or fittingwall and observe the reinforced wall thickness.7.3.2.2 Read toward the inner surface of the pipe or fittingwall and observe the liner thickness.7.3.3 Surface Layer ThicknessIf the product specificationrequires surface layer measurement, set a major scale divisionat the apparent interf
30、ace between the coating and the reinforcedwall. Make 6 measurements 60 apart by reading toward theouter surface of the pipe or fitting and observing the surfacelayer thickness.7.3.4 Nonreinforced Layers, within the reinforced wall orcombination reinforcement layers. If the product involvesunreinforc
31、ed layers or multiple reinforcement layers of differ-ent types, the amount and type of measurements shall beagreed upon between the buyer and the seller.7.3.4.1 The thickness of these layers shall be determined bysetting a major scale division of the reticle at the apparentinterface and reading towa
32、rd the next apparent interface. Make6 measurements 60 apart.7.4 CalculationsCalculate the average reinforced wallthickness and liner thickness by averaging the values obtained.7.5 ReportThe report shall include the following:7.5.1 Observed minimum and maximum reinforced wallthickness,7.5.2 Calculate
33、d average reinforced wall thickness,7.5.3 Observed minimum and maximum liner thickness,7.5.4 Calculated average liner thickness, and7.5.5 Observations of exterior surface layer, nonreinforcedlayers, or other reinforced layer measurements within thereinforced wall when measured.8. Average Outside Dia
34、meter MeasurementsNOTE 4The need for measurements and the location of the measure-ments should be evaluated since the outside surface of the pipe may notbe smooth. Uneven surfaces or burrs will influence the accuracy of theoutside diameter measurements.8.1 ApparatusAcircumferential vernier wrap tape
35、 shall beused to determine the average outside diameter. The tapeshould be accurate to within 6 0.02 in. (6 0.4 mm) on thecircumference measured.8.2 ProcedureIndividually measure and record the outsidediameter end-sealing surfaces or special OD control surfaces.Make the OD measurements near each end
36、 and at threeintermediate locations. Take the OD measurement by placingthe circumferential wrap tape around the pipe, making sure it isat right angles to the pipe axis. Average all five readings.D3567 1728.2.1 Calculate the diameter as follows:D 5 COD/ (1)where:COD= average of the readings.NOTE 5For
37、 larger diameter piping, the weight of the piping may causesignificant distortion. Take care in measurement and evaluation of thesignificance of this measurement. If significant product distortion due toweight occurs, the pipe may be measured when in the vertical position.Alternatively, the diameter
38、 may be measured as a reference from themandril from which the pipe was made as follows:d 5 CM/12 3wall thickness! (2)where:CM= outside circumference of the mandril, in. (mm) and the wallthickness is as described in 6.3. The measurement intervals are asdescribed in 8.2.8.3 ReportWhen outside diamete
39、r measurements areappropriate, the report shall include the minimum, maximum,and average outside diameter.9. Out-of-Round Measurements9.1 ApparatusAcaliper, micrometer, or similar instrumentcapable of measuring the OD within 6 0.25 % of nominal shallbe used.9.2 ProcedureUsing a micrometer or vernier
40、 calipers, takea series of outside diameter measurements at intervals spacedas in 8.2. Determine the maximum and minimum diameter bythree measurements 120 apart at each interval.NOTE 6For large diameter piping, the weight of the piping may causesignificant distortion. Take care in measurement and ev
41、aluation of thesignificance of this measurement. If significant product distortion due toweight occurs, the pipe may be measured when in the vertical position.Alternatively, with the pipe in a horizontal position, measure the pipediameter both vertically and horizontally and then remeasured afterrot
42、ating the pipe 45. Calculate the difference between the horizontal andvertical measurements in each case. The difference will be the averageout-of-roundness. The measurement intervals are as described in 9.2.9.3 CalculationsCalculate out-of-roundness as follows:9.3.1 Subtract the minimum outside dia
43、meter from theaverage outside diameter and subtract the average outsidediameter from the maximum.9.4 ReportThe report shall include the following:9.4.1 The average plus tolerance (maximum outside diam-eter average outside diameter), and9.4.2 The average negative tolerance (average outside di-ameter
44、minimum outside diameter).10. Inside Diameter10.1 Calculate the average inside diameter as follows:d 5 D 2 2ta(3)where:d = average inside diameter, in.,D = average outside diameter, in., as determined in Section8, andta= average total wall thickness, in., as determined inSection 6.11. Pipe Taper Ang
45、le Measurement11.1 ApparatusVernier Calipers, accurate to withing0.001 in. (0.025 mm). These may also be used by comparingactual differences in diameter at specific distances on the taper.11.1.1 ProcedureScribe two circumferential marks on thetaper as far apart as possible, but at least14 in. (6 mm)
46、 from thesmall end of the taper. Measure the exact distance betweenthese marks within 0.01 in. (0.25 mm). Using calipers, measurethe actual outside diameter at each of the scribe marks. Makefour measurements 45 apart.11.2 CalculationsUsing the actual diameters at the pointsmeasured and the distances
47、 between the points, calculate thetaper angle, a, as follows:Sin a 5 D22 D1!/2#/L (4)where:D2= large diameter observed,D1= smaller diameter observed, andL = distance between the two diameters measured along thetapers.11.3 ReportThe report shall include the following:11.3.1 Apparatus used,11.3.2 Aver
48、age D1,11.3.3 Average D2,11.3.4 The value of L, and11.3.5 Taper angle as calculated in 11.2, in terms of degreesto the nearest 0.1.12. Length of Pipe12.1 ApparatusA steel tape, with116-in. (1-mm) or finergraduations.12.2 ProcedureLay the pipe specimen on a flat surfaceand in a straight line. Observe
49、 the length within the nearest116 in. (1 mm).12.3 ReportThe report shall include the length of eachspecimen measured.13. Laying Lengths of Fittings13.1 ApparatusTwo good quality commercial steel scalescalibrated in116-in. (1-mm) increments.13.2 Procedure:NOTE 7Because of the wide variety of fittings and joining types,specific procedures to cover every possible case cannot be written. As aresult, the following general techniques may have to be modified toinclude a specific configuration or adapter.13.2.1 Elbows and Branch
