1、Designation: F656 15Standard 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 originaladoption or, in the c
2、ase 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 with poly(vinyl chloride) (PVC
3、) 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 the surface of pipe andfittings
4、 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 of this specification referen
5、ces 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 standard. The values given in parent
6、heses 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 of the userof this standard
7、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 forAbbreviated Terms Relating to Plas-ticsD1784 Specification for Rigid Poly(Vinyl Chloride) (PVC)Compounds and Chl
8、orinated 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 Solvent Cements,Primers, and C
9、leaners Used for Joining ThermoplasticPipe and FittingsF412 Terminology Relating to Plastic Piping SystemsF493 Specification for Solvent Cements for ChlorinatedPoly(Vinyl Chloride) (CPVC) Plastic Pipe and Fittings2.2 NSF/ANSI Standards:3Standard No. 14 for Plastics Piping System Components andRelate
10、d MaterialsStandard No. 61 for Drinking Water System Components Health Effects3. Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nology F412, and abbreviations are in accordance with Termi-nology D1600, unless otherwise specified.3.2 Definitions:3.2.1 fluorescent primera primer wh
11、ich 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).3.2.2 primeran organic solvent or a blend of solvents,which enhances adhesion, applied to plastic pipe and fittingsprio
12、r to application of a solvent cement.4. Material Requirements4.1 The primer shall be an organic liquid with a viscosity nogreater than 65 centipoise at 25C and shall not contain anyundissolved particles.1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and
13、is the direct responsibility of Subcommittee F17.20 on Joining.Current edition approved Aug. 1, 2015. Published August 2015. Originallyapproved in 1980. Last previous edition approved in 2010 as F656 10. DOI:10.1520/F0656-15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcon
14、tact 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 NSF International, P.O. Box 130140, 789 N. Dixboro Rd., AnnArbor, MI 48113-0140, http:/www.nsf.org.*A Summary of Changes
15、 section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.2 The solvent system to be used in the formulation of thisprimer is not specified.NOTE 1If required for identification purposes, colorants s
16、hall be usedin the primer. It is recommended that orange not be used, since this is therecommended color for CPVC solvent cement covered under Specifica-tion F493.NOTE 2When colorants are used in the primer for identificationpurposes a fluorescent primer meeting the requirements of this specifica-ti
17、on 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 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
18、)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 6.1.1 shall be tested for stability in accordancewith 6.2.6. Test Methods6.1 Dissolving Ability:6.1.1 Weigh 270 g of the p
19、rimer 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 laboratory mixer designed formixing flammable liquids. Add the resin to the primer andcontinue mixing for 60 min at a mixing sp
20、eed 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 mixer and adjust thetemperature to 73.4 6 3.6F (23 6 2C).6.1.2 Visually observe whether the resin is completelydissolved. Th
21、e 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 that (1) the resin is still completelydissolved, (2) the solution is free flowing, and (3) there are nosigns of stringines
22、s 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 agreement between the purchaser and the seller. Under suchagreement, minimum requirements shall not be lowered, nortests omit
23、ted, 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 requirements of this specification.8. Report8.1 Report the following information:8.1.1 Name of primer manufacturer,8.1.
24、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:9.1.1 Manufacturers or suppliers name and address, trade-name or trademark.9.1.2 This designation: “ASTM F656.9.1.3 Func
25、tion 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.NOTE 3Solvent cement intended for use in the joining of potablewater piping should be evaluated and certified as safe for
26、 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 no less restrictive than those included in NSF/ANSIStandard No. 14. The seal or mark of the laboratory making the evalua
27、tionshould be 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 Handling and distribution of the product,9.1.7.3 Intended use, and9.1.7.4 Requirements of law (such as the Federal H
28、azardousSubstances Act). These are intended to warn those who handleor use the product against potential hazards, such asflammability, toxicity, etc.NOTE 4It is recommended that the color of the contents be indicatedon the label.10. Safe Handling of Primer10.1 Primers for plastic pipe are made from
29、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 and eyes.10.2 Refer to Practice F402 for additional information.11. Quality Assurance11.1 When the product is marked
30、 with this designation,F656, the manufacturer affirms that the product wasmanufactured, inspected, sampled, and tested in accordancewith this specification and has been found to meet therequirements of this specification.F656 152SUPPLEMENTARY REQUIREMENTSPOTABLE WATER REQUIREMENTThis requirement app
31、lies 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 shallbe evaluated, tested, and certified for conformance with NSF/ANSI Standard No. 61 or the health effects portion of N
32、SF/ANSI Standard No. 14 by an acceptable certifying organizationwhen required by the regulatory authority having jurisdiction.SUMMARY OF CHANGESCommittee F17 has identified the location of selected changes to this standard since the last issue (F65610)that may impact the use of this standard.(1) Add
33、ed the definition of a primer (found in TerminologyF412) to the Terminology section.(2) Added specific language for primer viscosity requirementsto Material Requirements section.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item men
34、tionedin 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 responsibility.This standard is subject to revision at any time by the responsible technical committee
35、 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 ASTM International Headquarters. Your comments will receive careful consideration at a meetin
36、g 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 shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO
37、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), 610-832-9555 (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:/ 153
