1、Designation: F610/F610M 10F610/F610M 15Standard Test Method Practice forEvaluating the Quality of Molded Poly(Vinyl Chloride) (PVC)Plastic Pipe Fittings by the Heat Reversion Technique1This standard is issued under the fixed designation F610/F610M; the number immediately following the designation in
2、dicates the yearof original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This test method covers a procedure for
3、 evaluating the quality of molded poly(vinyl chloride) (PVC) plastic pipe fittingsafter exposure to heat.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall
4、be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish approp
5、riate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Summary of Test Method2.1 A representative sample of the fitting being produced is placed in a thermostatically controlled oven at 302 6 5.4F 1506 3C for 30 min. The acceptability of the fittin
6、g quality, after the required test time, is based or expressed as a percentage ofthe original wall thickness or surface area of the fitting.3. Significance and Use3.1 This test method is applicable to distinguish between properly and improperly molded PVC plastic pipe fittings. It can beused to:3.1.
7、1 Determine whether cold slugs or unfused areas are present (Note 1),3.1.2 Determine the amount of molded-in stress produced by the molding process (Note 2),3.1.3 Reveal contamination, and3.1.4 Show the quality of the weld line.NOTE 1A cold slug is a piece of material that enters the mold at a signi
8、ficantly lower temperature than the rest of the mass.NOTE 2A stress-free part will generally have better properties and higher strength than those with a high degree of stress. Stress-free parts willgenerally react better when exposed to chemicals.4. Apparatus4.1 Circulating Air Oven, thermostatical
9、ly controlled, capable of operating at 302 6 5.4F 150 6 3C such that after insertionof the fittings to be tested the test temperature is regained within 15 min or less. (See Annex A1.)NOTE 3The oven should be vented to the outside of the building.5. Conditioning5.1 A specific conditioning period is
10、not required although the fitting shall be at room temperature. This test can be performedon a particular fitting any time after it has been produced.6. Procedure6.1 Select the fittings to be tested and examine them for the following, making proper notation for the report:6.1.1 The condition and app
11、earance of both inner and outer surfaces of the fitting,1 This test method practice is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.40 on TestMethods.Current edition approved April 15, 2010March 1, 2015. Published April 2
12、010March 2015. Originally approved in 1979. Last previous edition approved in 20052010 asF610 00aF610 10. (2005). DOI: 10.1520/F0610_F0610M-10.10.1520/F0610_F0610M-15.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have
13、 been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official docu
14、ment.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16.1.2 The condition and appearance of the weld lines and areas adjacent to them,6.1.3 The condition and appearance o
15、f the gate and area adjacent to it, and6.1.4 The condition and appearance of the internal surface opposite the gate and gate area.6.2 Place the fittings to be tested in the oven so that each fitting stands on one of its socket entrances and with sufficientseparation between individual specimens so t
16、hat the hot air can flow freely between them. Record the time when the air in the ovenrecovers to 302 6 5.4F 150 6 3C. After an additional time as indicated in Table 1 at this temperature, remove the fittings,taking care not to distort or otherwise damage them.6.2.1 When the fitting being tested has
17、 a body and branch wall that falls within two different exposure times, two fittings shallbe tested. One will be tested using the lower exposure time, and the other will be tested using the longer exposure time.6.3 Allow the fittings to cool to room temperature naturally in the air. When cool enough
18、 to handle, examine them for thefollowing, making proper notation for the report:6.3.1 The condition and appearance of both inner and outer surfaces of the fitting,6.3.2 The condition and appearance of the weld lines and areas adjacent to them,6.3.3 The condition and appearance of the gate and area
19、adjacent to it, and6.3.4 The condition and appearance of the internal surface opposite the gate and gate area.7. Interpretation7.1 Asuggested interpretation of the results observed is given in Appendix X1. Refer to specific product standards for deviationsfrom this suggested interpretation of result
20、s.8. Report8.1 The report shall include the following information:8.1.1 Complete identification of the fitting, including the nominal size, material type and production codes such as part number,production date, shift, and machine number.8.1.2 Condition and appearance of weld line and area adjacent
21、to weld line before and after test.8.1.3 Condition and appearance of the gate and of the area opposite the gate on the inner surface before and after the test.8.1.4 Condition and appearance of the outer and inner surfaces before and after the test.8.1.5 Type and extent of any delamination produced.8
22、.1.6 Extent and location of any peeling produced.8.1.7 Maximum localized reduction of wall thickness expressed as a percentage of the original wall thickness at the immediatelyadjacent area.8.1.8 Any other changes attributable to the test.8.1.9 Date of test.NOTE 4Where cracks appear in the fitting,
23、a 45 angle cut through the fitting at the crack may be made to facilitate examination of the depth of thecrack.9. Precision and Bias9.1 No statement is made about either the precision or bias of Test Method F610/F 610M for evaluating the quality of PVCfittings, since the result merely states whether
24、 there is conformance to the criteria for success specified in the procedure.TABLE 1 Exposure TimeMinimum Wall Thickness, eA Exposure Time, min.e # 0.118 in. 3 mm 150.118 in. (3 mm) 1.574 in. 40 mm 240TABLE 1 Exposure TimeMinimum Wall Thickness, eA Exposure Time,in. mm min.e # 0.118 e # 3 150.118 1.
25、574 e 40 240AMinimum wall thickness refers to the standards specified minimum body wallthickness for the fitting being tested. If a minimum wall thickness is not specified ina standard, then the average body wall thickness shall be calculated to select theappropriate exposure time.F610/F610M 15210.
26、Keywords10.1 evaluating; fittings; plastic; PVC; qualityANNEXES(Mandatory Information)A1. DESCRIPTION OF OVENA1.1 The oven shall be large enough to allow free movement of air around each sample.A1.2 The oven is a circulating hot air oven thermostatically controlled at a temperature of 302 6 5.4F 150
27、 6 3C and mustbe capable of maintaining the required temperature for the duration of the test period.A1.3 The oven must be capable of reattaining the required test temperature within 15 min after placing the fittings in the oven.A1.4 The oven must be equipped with a rack placed such that free moveme
28、nt of air may be maintained completely around thefitting being tested.A2. PLACING OF FITTINGS IN OVENA2.1 When size permits, all specimens shall be placed in a vertical position in the test oven standing on one of its socket entrances.A2.2 When a fitting with a tee configuration is being tested, it
29、shall be placed in the oven on the run of the tee, not on the branchleg. See Fig. A2.1.A2.3 Where 45 wyes are being tested, the socket entrance on the body of the fitting adjacent to the area of the fitting where thewye branch connects to the body shall be the socket entrance on which the fitting is
30、 placed on the oven rack. See Fig. A2.2. Thesocket entrance of the 45 branch should be pointing downwards.A2.4 When testing is being performed on a regular basis the oven being used shall be of a size which will accept the fitting inone piece. For occasional testing, when the size of a fitting is to
31、o large to place inside the oven in one piece, the fitting may becut into sections in order to fit inside the oven. The sections shall be cut in such a manner that any cut made shall not pass throughthe weld line or gate area of the fitting being tested. The fitting in one piece shall be the referee
32、 method.FIG. A2.1 Placing of Tee Configurations In OvenF610/F610M 153APPENDIX(Nonmandatory Information)X1. SUGGESTED INTERPRETATION OF RESULTSX1.1 The specimen quality is satisfactory if the penetration of the wall resulting from weld line separation or gate flaw or surfacepeeling is such that the c
33、ombined penetration(s) of the two sides is not more than 25 % of the original thicknesses. See Fig. X1.1.X1.2 The fitting has not developed delamination nor peeling over more than 25 % of its surface area. See Figs. X1.2 and X1.3.FIG. A2.2 Placing of Wye Configuration In OvenFIG. X1.1 Weld Line Sepa
34、rationF610/F610M 154SUMMARY OF CHANGESCommittee F17 has identified the location of selected changes to this standard since the last issue(F610/F610M-00a(2009) that may impact the use of this standard.(1) Change in the placement of the tee fitting in A2.2 and Fig. A2.1.ASTM International takes no pos
35、ition 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 any such patent rights, and the riskof infringement of such rights, are entirely their own responsibil
36、ity.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 are invited either for revision of this standard or for additional standardsand should be addressed to AST
37、M 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 received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address
38、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) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-
39、832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ Scope*1.1 This practice covers a procedure fo
40、r evaluating the quality of molded poly(vinyl chloride) (PVC) plastic pipe fittings afterexposure to heat.FIG. X1.2 Surface Peeling On Inner Surface At GateFIG. X1.3 Surface Peeling On Inner Surface At GateF610/F610M 1551.2 UnitsThe values stated in either inch-pound or SI units are to be regarded s
41、eparately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.NOTE 1The values in square brackets are SI units requirements.1.3
42、 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Summary of Practi
43、ce2.1 Arepresentative sample of the fitting being produced is placed in a thermostatically controlled oven at 302 6 5.4F or 1506 3C for 30 min. The acceptability of the fitting quality, after the required test time, is based or expressed as a percentage ofthe original wall thickness or surface area
44、of the fitting.3. Significance and Use3.1 This practice is applicable to distinguish between properly and improperly molded PVC plastic pipe fittings. It can be usedto:3.1.1 Determine whether cold slugs or unfused areas are present (Note 2),3.1.2 Determine the amount of molded-in stress produced by
45、the molding process (Note 3),3.1.3 Reveal contamination, and3.1.4 Show the quality of the weld line.NOTE 2A cold slug is a piece of material that enters the mold at a significantly lower temperature than the rest of the mass.NOTE 3A stress-free part will generally have better properties and higher s
46、trength than those with a high degree of stress. Stress-free parts willgenerally react better when exposed to chemicals.4. Apparatus4.1 Circulating Air Oven, thermostatically controlled, capable of operating at 302 6 5.4F or 150 6 3C such that afterinsertion of the fittings to be tested the test tem
47、perature is regained within 15 min or less. (See Annex A1.)NOTE 4The oven should be vented to the outside of the building.5. Conditioning5.1 A specific conditioning period is not required although the fitting shall be at room temperature. This test can be performedon a particular fitting any time af
48、ter it has been produced.6. Procedure6.1 Select the fittings to be tested and examine them for the following, making proper notation for the report:6.1.1 The condition and appearance of both inner and outer surfaces of the fitting,6.1.2 The condition and appearance of the weld lines and areas adjace
49、nt to them,6.1.3 The condition and appearance of the gate and area adjacent to it, and6.1.4 The condition and appearance of the internal surface opposite the gate and gate area.6.2 Place the fittings to be tested in the oven so that each fitting stands on one of its socket entrances and with sufficientseparation between individual specimens so that the hot air can flow freely between them. Record the time when the air in the ovenrecovers to 302 6 5.4F or 150 6 3C. After an additional time as indicated
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