1、AWS G1.6:2006An American National StandardSpecification forthe Qualification ofPlastics WeldingInspectors forHot Gas, Hot GasExtrusion, andHeated Tool ButtThermoplasticWelds550 N.W. LeJeune Road, Miami, FL 33126AWS G1.6:2006An American National StandardApproved by theAmerican National Standards Inst
2、ituteJuly 6, 2006Specification for the Qualification ofPlastics Welding Inspectors for HotGas, Hot Gas Extrusion, and HeatedTool Butt Thermoplastic Welds1st EditionPrepared by theAmerican Welding Society (AWS) G1 Committee on Joining of Plastics and CompositesUnder the Direction of theAWS Technical
3、Activities CommitteeApproved by theAWS Board of DirectorsAbstractThis standard defines the qualification requirements of Hot Gas, Hot Gas Extrusion, and Heated Tool Butt Thermo-plastic welding inspectors. The qualification requirements for visual plastics welding inspectors include experience andsat
4、isfactory completion of an examination that includes demonstrated capabilities. The examination tests the inspectorsknowledge of plastics welding processes, plastics welding procedures, nondestructive examinations, destructive tests,terms, definitions, symbols, reports, safety, quality assurance, an
5、d responsibilities.iiAWS G1.6:2006International Standard Book Number: 0-87171-051-XAmerican Welding Society550 N.W. LeJeune Road, Miami, FL 33126 2006 by American Welding SocietyAll rights reservedPrinted in the United States of AmericaPhotocopy Rights. No portion of this standard may be reproduced,
6、 stored in a retrieval system, or transmitted in anyform, including mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyrightowner.Authorization to photocopy items for internal, personal, or educational classroom use only or the internal, personal, ored
7、ucational classroom use only of specific clients is granted by the American Welding Society provided that the appropriatefee is paid to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, tel: (978) 750-8400; Internet:.iiiAWS G1.6:2006Statement on the Use of American Welding Socie
8、ty StandardsAll standards (codes, specifications, recommended practices, methods, classifications, and guides) of the AmericanWelding Society (AWS) are voluntary consensus standards that have been developed in accordance with the rules of theAmerican National Standards Institute (ANSI). When AWS Ame
9、rican National Standards are either incorporated in, ormade part of, documents that are included in federal or state laws and regulations, or the regulations of other govern-mental bodies, their provisions carry the full legal authority of the statute. In such cases, any changes in those AWSstandard
10、s must be approved by the governmental body having statutory jurisdiction before they can become a part ofthose laws and regulations. In all cases, these standards carry the full legal authority of the contract or other documentthat invokes the AWS standards. Where this contractual relationship exis
11、ts, changes in or deviations from requirementsof an AWS standard must be by agreement between the contracting parties.AWS American National Standards are developed through a consensus standards development process that bringstogether volunteers representing varied viewpoints and interests to achieve
12、 consensus. While AWS administers the processand establishes rules to promote fairness in the development of consensus, it does not independently test, evaluate, orverify the accuracy of any information or the soundness of any judgments contained in its standards.AWS disclaims liability for any inju
13、ry to persons or to property, or other damages of any nature whatsoever, whetherspecial, indirect, consequential or compensatory, directly or indirectly resulting from the publication, use of, or relianceon this standard. AWS also makes no guaranty or warranty as to the accuracy or completeness of a
14、ny informationpublished herein.In issuing and making this standard available, AWS is not undertaking to render professional or other services for or onbehalf of any person or entity. Nor is AWS undertaking to perform any duty owed by any person or entity to someoneelse. Anyone using these documents
15、should rely on his or her own independent judgment or, as appropriate, seek theadvice of a competent professional in determining the exercise of reasonable care in any given circumstances.This standard may be superseded by the issuance of new editions. Users should ensure that they have the latest e
16、dition.Publication of this standard does not authorize infringement of any patent or trade name. Users of this standard acceptany and all liabilities for infringement of any patent or trade name items. AWS disclaims liability for the infringement ofany patent or product trade name resulting from the
17、 use of this standard.Finally, AWS does not monitor, police, or enforce compliance with this standard, nor does it have the power to do so.On occasion, text, tables, or figures are printed incorrectly, constituting errata. Such errata, when discovered, are postedon the AWS web page (www.aws.org).Off
18、icial interpretations of any of the technical requirements of this standard may only be obtained by sending a request,in writing, to the Managing Director, Technical Services Division, American Welding Society, 550 N.W. LeJeune Road,Miami, FL 33126 (see Annex A). With regard to technical inquiries m
19、ade concerning AWS standards, oral opinionson AWS standards may be rendered. However, such opinions represent only the personal opinions of the particularindividuals giving them. These individuals do not speak on behalf of AWS, nor do these oral opinions constitute officialor unofficial opinions or
20、interpretations of AWS. In addition, oral opinions are informal and should not be used as asubstitute for an official interpretation.This standard is subject to revision at any time by the AWS G1 Committee on Joining of Plastics and Composites. Itmust be reviewed every five years, and if not revised
21、, it must be either reaffirmed or withdrawn. Comments (recommen-dations, additions, or deletions) and any pertinent data that may be of use in improving this standard are requiredand should be addressed to AWS Headquarters. Such comments will receive careful consideration by the AWS G1Committee on J
22、oining of Plastics and Composites and the author of the comments will be informed of the Committeesresponse to the comments. Guests are invited to attend all meetings of the AWS G1 Committee on Joining of Plasticsand Composites to express their comments verbally. Procedures for appeal of an adverse
23、decision concerning all suchcomments are provided in the Rules of Operation of the Technical Activities Committee. A copy of these Rules can beobtained from the American Welding Society, 550 N.W. LeJeune Road, Miami, FL 33126.This page is intentionally blank.ivAWS G1.6:2006vAWS G1.6:2006PersonnelAWS
24、 G1 Committee on Joining of Plastics and CompositesH. L. Mikeworth, Chair Dukane CorporationW. McMaster, 1st Vice Chair BASF CorporationM. W. Wichmann, 2nd Vice Chair E. I. duPont de Nemours and CompanyS. P. Hedrick, Secretary American Welding Society*A. Benatar Ohio State UniversityK. Buckley Brans
25、on Utrasonics*F. H. Dibble Forward Technology IndustriesJ. L. Frantz Branson Ultrasonics CorporationB. E. Gourley Sonics the requirements for structuring theexamination to qualify these personnel; and defines thebody of knowledge for plastics welding inspectors.1.2 Levels. There are three levels of
26、qualification: Asso-ciate Plastics Welding Inspector (APWI), Plastics Weld-ing Inspector (PWI), and Senior Plastics WeldingInspector (SPWI).1.3 Capabilities. No determination is made of an indi-viduals capabilities in applying that knowledge within aspecific work environment or under actual working
27、con-ditions. Qualifications for individual capabilities are out-lined within this document for varying levels of weldinginspectors.1.4 Responsibility. It shall be the responsibility of theemployer to determine that the APWI/PWI/SPWI iscapable of performing the duties involved in his/her par-ticular
28、plastics welding inspection assignment.1.5 Employer. This standard is intended to supplementthe requirements of an employer, code, or other docu-ments and shall not be construed as a preemption of theemployers responsibility for the work or for the perfor-mance of the work.1.6 Safety Precautions. Th
29、is document is not intendedto address safety and health matters regarding plasticswelding inspection personnel. Safety and health require-ments are provided in MSDS sheets and OSHA recom-mendations as well as other safety and health standards,and federal, state, and local government regulations. Thi
30、sstandard only covers AWS qualification requirements ofthe APWI/PWI/SPWI. A recommended safety referenceis Guide to the Safe Handling of Fluoropolymer Resins.1.7 Verb Usage. As used in this standard, the word shalldenotes a requirement, the word should denotes a guide-line, and the word may denotes
31、a choice.2. Referenced DocumentsThe following standards contain provisions which,through reference in this text, constitute provisions ofthis AWS standard. For dated references, subsequentamendments to, or revisions of, any of these publicationsdo not apply. However, parties to agreements based onth
32、is AWS standard are encouraged to investigate the pos-sibility of applying the most recent editions of the docu-ments shown below. For undated references, the latestedition of the standard referred to applies.1. AWS A3.0, Standard Welding Terms andDefinitions12. AWS B2.4, Specification for Welding P
33、rocedureand Performance Qualification for Thermoplastics3. AWS G1.10:2001, Guide for the Evaluation of HotGas and Heated Tool Thermoplastic Welds4. ASTM C 1147, Standard Practice for Determiningthe Short Term Tensile Weld Strength of Chemical-Resistant Thermoplastics25. EN 12814, Testing of Welded J
34、oints ofThermoplastic31AWS standards are published by the American WeldingSociety, 550 N.W. LeJeune Road, Miami, FL 33126.2ASTM standards are published by the American Society forTesting and Materials, 100 Barr Harbor Drive, West Consho-hocken, PA 19428-2959.3Available from the British Standards Ins
35、titution, 389Chiswick High Road, London W4 4AL, UK.Specification for the Qualification of Plastics Welding Inspectors for Hot Gas, Hot Gas Extrusion, andHeated Tool Butt Thermoplastic WeldsAWS G1.6:200626. ASME RTP-1, Reinforced Thermoset Plastic Cor-rosion Resistant Equipment Mandatory Appendix M-1
36、447. Society of the Plastics Industry, Guide to the SafeHandling of Fluoropolymer Resins58. ISO 9001, Quality Management System Standard69. ASNT SNT-TC-1A, Recommended Practice No.SNT-TC-1A73. DefinitionsThe welding terms used in this standard are defined inAWS A3.0, Standard Welding Terms and Defin
37、itions.Other terms used in this standard are defined as follows:approved. Approved is to accept as satisfactory.acceptance criteria. Acceptance criteria are specifiedlimits placed on characteristics of an item or processdefined in standards, codes, specifications, or otherdocuments.candidate. A cand
38、idate is an individual applying forqualification.code. A code is a standard consisting of a set of condi-tions and requirements relating to a particular subject,and indicating appropriate procedures by which it canbe determined that the requirements have been met. Itis a standard suitable for adopti
39、on by a governmentalauthority as a part of a law or regulation, or as speci-fied by other mandatory documents.nondestructive examination (NDE). Nondestructiveexamination is the act of determining the suitability ofsome material or component for its intended purposeusing techniques that do not affect
40、 its serviceability.Procedure Qualification Record (PQR). A record ofwelding variables used to produce an acceptable testweldment and the results of tests conducted on theweldment to qualify a welding procedure specification.4ASME standards are published by the American Society ofMechanical Engineer
41、s, Three Park Avenue, New York, NY10016-5990.5Available from the Society of the Plastic Industry, 1667K Street, Suite 1000, Washington, DC 20006.6ANSI standards are published by the American NationalStandards Institute, 11 West 42nd Street, 13th Floor, NewYork, NY 10036.7ASNT standards are published
42、 by the American Society forNondestructive Testing, Inc., 1711 Arlingate Lane, Columbus,OH 43228-0518.qualification. Qualification is demonstrated training,skill, knowledge and experience required for person-nel to perform the duties of a specific job or function.qualified. Qualified is having compl
43、ied with specificrequirements.Quality assurance (QA). Quality assurance is allplanned and systematic activities, implemented withinthe quality system, and demonstrated as needed, toprovide adequate confidence that the entity will fulfillrequirements for quality.Quality control (QC). Operational tech
44、niques and activ-ities that are used to fulfill requirements for quality.Sign off. Sign off is to acknowledge in writing.Specification. A specification is a standard that clearlyand accurately describes the essential technicalrequirements for a material, product, system, or ser-vice. It indicates th
45、e procedures, methods, qualifica-tions, or equipment by which it can be determined thatrequirements have been met. A standard suitable foradoption in procurement documents.Standard. Standard is a generic term incorporatingcodes, specifications, recommended practices, classi-fications, methods, and g
46、uides that have been pre-pared by a sponsoring committee, and approved andadopted in accordance with established procedures.Welding Procedure Specification (WPS). A documentproviding the required welding variables for a specificapplication to assure repeatability by properly trainedwelders and weldi
47、ng operators.Witness. Witness is the observing of something.4. Levels for QualificationThere are three levels of qualifications for plastics weld-ing inspection personnel. These levels are:4.1 Associate Plastics Welding Inspector (APWI). Aperson meeting the qualification requirements of 6.1 andClaus
48、e 7.4.2 Plastics Welding Inspector (PWI). A person meet-ing the qualification requirements of 6.2 and 7.4.3 Senior Plastics Welding Inspector (SPWI). A per-son meeting the qualification requirements of 6.3 andClause 7.5. Functions5.1 Duties. The welding inspectors specific duties shallbe defined by
49、the employer.AWS G1.6:200635.1.1 APWI. The APWI shall be able to performinspections and prepare reports under the direct super-vision of an SPWI or PWI, within visible and audiblerange, and as defined in 5.2. It is the SPWI or PWI,however, who has ultimate responsibility for determin-ing if welded assemblies conform to workmanship andacceptance criteria.5.1.2 PWI. The PWI shall be able to perform inspec-tions or to verify that the work inspected, and recordsmaintained, conform to the requirements of the applica-ble standards, and as defined in 5.2.5.1.3 SPWI. The SPWI shall be able to pe
