1、Designation: F656 10An American National StandardStandard Specification forPrimers for Use in Solvent Cement Joints of Poly(VinylChloride) (PVC) Plastic Pipe and Fittings1This standard is issued under the fixed designation F656; the number immediately following the designation indicates the year of
2、originaladoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers requirements for primers foruse w
3、ith poly(vinyl chloride) (PVC) pipe and fittings that are tobe joined by PVC solvent cements meeting the requirements ofSpecification D2564.1.2 These primers are used in pressure and nonpressureapplications with plain end pipe and either socket-type fittingsor bell end pipe. These primers prepare th
4、e surface of pipe andfittings before the application of solvent cement. The primerseffect on the set and cure time of the joint is dependent on thecement, pipe size, application method, temperature, and hu-midity.1.3 Aprocedure for using the primer with cement is given inPractice D2855.1.4 The text
5、of this specification references notes, footnotes,and appendixes which provide explanatory material. Thesenotes and footnotes (excluding those in tables and figures) shallnot be considered as requirements of the specification.1.5 The values stated in inch-pound units are to be regardedas the standar
6、d. The values given in parentheses are forinformation only.1.6 The following safety hazards caveat pertains only to thetest methods portion, Section 6, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility
7、 of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2D1600 Terminology for Abbreviated Terms Relating toPlasticsD1784 Specification for Rigid Poly(Vinyl Chlo
8、ride) (PVC)Compounds and Chlorinated Poly(Vinyl Chloride)(CPVC) CompoundsD2564 Specification for Solvent Cements for Poly(VinylChloride) (PVC) Plastic Piping SystemsD2855 Practice for Making Solvent-Cemented Joints withPoly(Vinyl Chloride) (PVC) Pipe and FittingsF402 Practice for Safe Handling of So
9、lvent Cements, Prim-ers, and Cleaners Used for Joining Thermoplastic Pipe andFittingsF412 Terminology Relating to Plastic Piping SystemsF493 Specification for Solvent Cements for ChlorinatedPoly(Vinyl Chloride) (CPVC) Plastic Pipe and Fittings2.2 NSF Standards:Standard No. 14 for Plastic Piping Comp
10、onents and RelatedMaterials3Standard No. 61 for Drinking Water SystemsComponentsHealth Effects33. Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nology F412, and abbreviations are in accordance with Termi-nology D1600, unless otherwise specified.3.1.1 fluorescent primera primer w
11、hich is clear and col-orless when viewed under visible light such as sunlight andindoor lighting, but which is readily visible when viewed underUV light (also known as, black light).4. Material Requirements4.1 The primer shall be an organic liquid with water-likeviscosity and shall not contain any u
12、ndissolved particles.4.2 The solvent system to be used in the formulation of thisprimer is not specified.NOTE 1If required for identification purposes, colorants shall be usedin the primer. It is recommended that orange not be used, since this is therecommended color for CPVC solvent cement covered
13、under Specifica-tion F493.NOTE 2When colorants are used in the primer for identification1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.20 on Joining.Current edition approved Aug. 1, 2010. Published Aug
14、ust 2010. Originallyapproved in 1980. Last previous edition approved in 2008 as F656 08. DOI:10.1520/F0656-10.2For 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 st
15、andards Document Summary page onthe ASTM website.3Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., AnnArbor, MI 48113-0140, http:/www.nsf.org.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, Wes
16、t Conshohocken, PA 19428-2959, United States.purposes a fluorescent primer meeting the requirements of this specifica-tion and visible under UV (black) light may be acceptable.5. Detail Requirements5.1 Dissolving AbilityThe primer shall be capable ofdissolving at least 10 % by weight of PVC resin at
17、 73.4 63.6F (23 6 2C) within 60 min, as specified in 5.1. The PVCresin shall be a resin used to make poly(vinyl chloride)molding or extrusion compound meeting the requirements ofClass 12454-B, as classified in Specification D1784.5.2 StabilityThe 10 % resin-primer solution mixed inaccordance with 6.
18、1.1 shall be tested for stability in accordancewith 6.2.6. Test Methods6.1 Dissolving Ability:6.1.1 Weigh 270 g of the primer being tested into a closedmixing container. Weigh out 30 g of PVC resin. Adjust thetemperature of the primer to 73.4 6 3.6F (23 6 2C). Beginmixing the primer, using a laborat
19、ory mixer designed formixing flammable liquids. Add the resin to the primer andcontinue mixing for 60 min at a mixing speed of 1500 r/min orless, using a mixing blade and speed so that the maximumtemperature of the mixture during the mixing period is 90F(32C) or less. After 60 min, turn off the mixe
20、r and adjust thetemperature to 73.4 6 3.6F (23 6 2C).6.1.2 Visually observe whether the resin is completelydissolved. The solution shall be smooth, nongrainy, free-flowing, and shall not contain any undissolved resin.6.2 StabilityHold the resin-primer solution at 40F (5C)for 24 h and then observe th
21、at (1) the resin is still completelydissolved, (2) the solution is free flowing, and (3) there are nosigns of stringiness or gelatin structure.7. Retest and Rejection7.1 If the results of any test(s) do not meet the requirementsof this specification, the test(s) shall be conducted again onlyby agree
22、ment between the purchaser and the seller. Under suchagreement, minimum requirements shall not be lowered, nortests omitted, substituted, changed, or modified, nor shallspecification limits be changed. If upon retest, failure occurs,the quantity of product represented by the test(s) does not meetthe
23、 requirements of this specification.8. Report8.1 Report the following information:8.1.1 Name of primer manufacturer,8.1.2 Lot number,8.1.3 Dissolving ability, pass or fail, and8.1.4 Stability, pass or fail.9. Container Labeling and Marking9.1 Container labeling of primer shall include the following:
24、9.1.1 Manufacturers or suppliers name and address, trade-name or trademark.9.1.2 This designation: “ASTM F656.9.1.3 Function of material (Primer for PVC pipe and fit-tings. Product name shall be Primer.).9.1.4 Procedure or instructions for application and use.9.1.5 Lot number of batch on container.N
25、OTE 3Solvent cement intended for use in the joining of potablewater piping should be evaluated and certified as safe for this purpose bya testing agency acceptable to the local health authority. The evaluationshould be in accordance with requirements for chemical extraction, taste,and odor that are
26、no less restrictive than those included in NSF StandardNo. 14. The seal or mark of the laboratory making the evaluation shouldbe included on the container.9.1.6 End-use applications (examples: potable water, pres-sure use).9.1.7 All warnings and cautions necessitated by:9.1.7.1 Ingredients,9.1.7.2 H
27、andling and distribution of the product,9.1.7.3 Intended use, and9.1.7.4 Requirements of law (such as the Federal HazardousSubstances Act). These are intended to warn those who handleor use the product against potential hazards, such as flamma-bility, toxicity, etc.NOTE 4It is recommended that the c
28、olor of the contents be indicatedon the label.10. Safe Handling of Primer10.1 Primers for plastic pipe are made from flammableliquids. Keep them away from all sources of ignition. Maintainventilation to reduce fire hazard and to minimize breathing ofsolvent vapors. Avoid contact of primers with skin
29、 and eyes.10.2 Refer to Practice F402 for additional information.11. Quality Assurance11.1 When the product is marked with this designation,F656, the manufacturer affirms that the product was manufac-tured, inspected, sampled, and tested in accordance with thisspecification and has been found to mee
30、t the requirements ofthis specification.F656 102SUPPLEMENTARY REQUIREMENTSPOTABLE WATER REQUIREMENTThis requirement applies whenever a regulatory authority or user calls for the product to be used toconvey or to be in contact with potable water.S1. Products intended for contact with potable water sh
31、allbe evaluated, tested, and certified for conformance with ANSI/NSF Standard No. 61 or the health effects portion of NSFStandard No. 14 by an acceptable certifying organization whenrequired by the regulatory authority having jurisdiction.SUMMARY OF CHANGESCommittee F17 has identified the location o
32、f selected changes to this standard since the last issue (F65608)that may impact the use of this standard.(1) 9.1.5 was revised.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are
33、 expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not r
34、evised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you
35、 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 shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United
36、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), 610-832-9555 (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 ASTM website (www.astm.org/COPYRIGHT/).F656 103
