1、Designation: D5255 14Standard Practice forCertification of Personnel Engaged in the Testing of Soiland Rock1This standard is issued under the fixed designation D5255; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、 revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This practice provides a guide for evaluation and certi-fication procedures for personnel engaged in testing soil androck
3、 in accordance with ASTM test methods and is intendedfor use by independent organizations providing certificationservices.1.2 Qualifications for certification candidates, qualificationsof those administering the certification examinations, methodsof administering the certification tests, and certain
4、 certificationorganization operating requirements are given.1.3 Certification is specific to a singleASTM test method.Amonitored written examination and a monitored performanceexamination are normally required.NOTE 1Personnel certification may be an important aspect of a qualitysystem as described i
5、n Practice D3740. Certification of personnel is onemeans of meeting personnel qualifications given in Practice D3740.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priat
6、e safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.5 This practice offers a set of instructions for performingone or more specific operations. This document cannot replaceeducation or experience and should be used in conjunctionwith professional j
7、udgment. Not all aspects of this practice maybe applicable in all circumstances. This ASTM standard is notintended to represent or replace the standard of care by whichthe adequacy of a given professional service must be judged,nor should this document be applied without consideration ofa projects m
8、any unique aspects. The word “Standard” in thetitle of this document means only that the document has beenapproved through the ASTM consensus process.2. Referenced Documents2.1 ASTM Standards:2D653 Terminology Relating to Soil, Rock, and ContainedFluidsD3740 Practice for Minimum Requirements for Age
9、nciesEngaged in Testing and/or Inspection of Soil and Rock asUsed in Engineering Design and Construction3. Terminology3.1 Definitions:3.1.1 For definitions of common technical terms, refer toTerminology D653.3.1.2 agencyan organization, or part of an organization,engaged in activities of technically
10、 oriented testing orinspection, or both.3.1.3 inspectionthe process of measuring, examining,testing, gaging, or using other procedures to ascertain thequality or state, detect errors or defects or otherwise appraisematerials, products, services, systems, or environments to apre-established standard.
11、3.1.4 testingthe determination by technical means ofproperties, performance, or elements of materials, products,services, systems, or environments that may involve applica-tion of established scientific principles and procedures.3.2 Definitions of Terms Specific to This Standard:3.2.1 administrative
12、ly independentall policy decisions re-lating to certification matters are the sole decision of thecertifying organization and not subject to approval by any otherbody and that all financial matters related to the operation ofthe certifying organization are segregated from those of theparent or affil
13、iated organization.3.2.2 certificationan action which determines and an-nounces that an individual has fulfilled the pre-established1This practice is under the jurisdiction of ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.99 on Quality Control.Current editio
14、n approved Aug. 15, 2014. Published September 2014. Originallyapproved in 1992. Last previous edition approved in 2008 as D5255 01(2008).DOI: 10.1520/D5255-14.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of
15、ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.*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 States1requirements and is com
16、petent to perform the designatedtask(s) associated with a single ASTM test method.3.2.3 certification organizationan independent body en-gaged in the evaluation and credentialing of the knowledge andabilities of individuals performing specified tasks.3.2.4 examineecertification applicant involved in
17、 the ex-amination process.3.2.5 examinera qualified professional who administersand evaluates the performance examination component of thecertification process.3.2.6 personnelemployees of inspection and testing agen-cies who perform soil and rock tests.3.2.7 proctorthe individual responsible for adm
18、inisteringthe written examination component of the certification process.3.2.8 qualified professionala professional engineer orsimilar professional who is recognized by peers and associatesas having soil and rock testing expertise.3.2.9 specifying entitythe organization requiring the certi-fication
19、through provisions in contracts, standards, regulations,codes, and legislation.4. Significance and Use4.1 This practice provides basic criteria for the developmentand operation of a certification organization, selection ofexamination material for a written examination, and the scopeand details of a
20、performance test. The qualifications of theexaminer and limitations on the relationship between theexaminer and the examinee are given in this practice.4.2 The basic criteria provided by this practice is intended tobe supplemented by more specific criteria serving the require-ments of the certificat
21、ion organization.4.3 It is unrealistic and unintended that each individual becertified for every test the employing agency performs. Rather,it should be a goal of an agency that a majority of personnelnormally performing a given test are certified. Depending onthe purpose of the testing, it may be a
22、ppropriate for the clientto specify whether or not a certified technician should performa given test.4.4 Although this practice calls for certification specific to asingle ASTM test method, it is not intended the certificationorganization avoid grouping related test methods in the interestof efficie
23、ncy.5. Certification Organization5.1 Structure:5.1.1 The certification organization shall be administrativelyindependent in matters pertaining to certification.5.1.1.1 A certification organization that is not a legal entityin and of itself shall provide proof that the organizationsgoverning body is
24、administratively independent in certificationmatters from the organization of which it is part.5.1.2 The certification organization shall disclose, throughpublication of a publicly available document, rules and proce-dures that describe how the certified individual, the employer,and the specifying e
25、ntity have input into the policies anddecisions of the organization.5.2 Resources:5.2.1 The certification organization shall disclose, throughpublication of a publicly available document, evidence theorganization has the financial resources to properly conduct thecertification activities.5.2.2 The c
26、ertification organization shall disclose, throughpublication of a publicly available document, evidence its staffpossesses the knowledge and skill necessary to conduct thecertification activities or has available and makes use ofnon-staff consultants and professionals to sufficiently supple-ment sta
27、ff knowledge and skill.5.3 Responsibilities:5.3.1 The certification organization shall disclose, throughpublication of a publicly available document, evidence themechanism used to evaluate individual competence isobjective, fair, and based on the knowledge and skills neededto properly perform the te
28、st method(s).5.3.2 The certification organization shall publish, at leastannually, a summary of certification activities to includenumber tested, number passing the examinations, numbercertified, and, when applicable, number re-certified.5.3.3 The certification organization shall provide a mecha-nis
29、m for responding to inquiries from individuals and organi-zations wanting to verify that a particular certified individualhas a specific certification.5.4 Records:5.4.1 The files of the certification organization should con-tain at least the following:5.4.1.1 Examination identity and date administer
30、ed,5.4.1.2 Examination question source,5.4.1.3 Identity and qualifications of written examinationproctor,5.4.1.4 Identity and qualifications of performance examina-tion examiner, and5.4.1.5 Examination question performance statistics.5.5 Evidence of Certification:5.5.1 Evidence of certification shal
31、l be issued by the orga-nization to the candidate upon successful completion of theexaminations. Certification shall include the date ofcertification, the period of certification, and the ASTM testmethod or test methods for which the examinee is qualified.5.5.1.1 The ASTM test method shall be listed
32、 by use of“ASTM,” the test method designation, and the year of theversion used for the certification, for example, “ASTMD XXXX 86.”6. Examiner6.1 The performance examination examiner shall be aqualified professional with at least five years of experience atperforming and supervising the performance
33、of a variety ofASTM test methods and shall have repeatedly performed theASTM test method(s) the examinees will be performing.6.1.1 The examiner shall not be a relative, a supervisor, oran associate (co-worker) of the examinee.6.1.1.1 When there is a possibility of conflict of interest,documentation
34、shall be attached to the examinees file certify-ing there is sufficient separation in the organizations structureD5255 142between the examiner and examinee so it is not in theexaminers interest whether or not the examinee is certified.7. Examinee7.1 Examinee must be sufficiently literate to read and
35、answer questions of the written examination, to be capable ofperforming required calculations, to place necessary data informs or unformatted data tables, and personally perform thetest method(s).8. Certification and Re-Certification8.1 Initial certification shall be valid for a period not toexceed
36、five years. This period for which the certification isvalid shall be clearly and prominently stated on any documentsthat attest to the certification(s) held by the individual.8.2 Recertification shall be valid for a period not to exceedfive years. This recertification action and the period for which
37、the recertification is valid shall be clearly and prominentlystated on any documents that attest to the certification(s) heldby the individual.8.2.1 The recertification process shall involve, as aminimum, the performance examination.NOTE 2An appropriate written examination should be given ifsufficie
38、nt changes to the test method have occurred which cannot beproperly covered by the performance exam.8.3 Revocation of certification for just cause shall occuronly after due process is provided to the person charged.9. Written Examination9.1 Qualified professionals thoroughly familiar with theASTM te
39、st method(s) shall prepare the written examination.The examination shall be changed periodically. All measuresrequired to prevent compromise of the examination shall betaken.9.1.1 When there is reasonable suspicion of a compromisedexamination, that examination shall not be used.9.2 The examination s
40、hall stress the essentials of the ASTMtest method(s), as well as details. In particular, commonsources of error of the test should be the basis for a number ofexamination questions. A basic understanding of the principlesunderlying the test method(s) and the basis of some of therequired calculations
41、 for the test method(s) should also bestressed. The questions shall cover the test method(s) elementssuch as apparatus, specimen preparation, test procedure, andreport requirements.9.3 The written examination shall be given in a room thatprovides the lighting level, noise control, work space,ventila
42、tion, and temperature control universally recognized asnecessary for a testing facility in which written examinationsare administered.10. Performance Examination10.1 One or more examiners meeting the requirements ofSection 6 shall administer the performance examination.10.2 The examiner shall conduc
43、t the performance examina-tion for a given ASTM test method in accordance with apre-established checklist that recognizes and evaluates thesteps that must be done to properly perform the test method.10.3 The performance examination shall be given in anenvironment that duplicates or attempts to dupli
44、cate the envi-ronment where the ASTM test method is normally conducted.11. Keywords11.1 certification; evaluation; examination; personnel; per-sonnel certification; personnel evaluation; personnel testing;testingSUMMARY OF CHANGESIn accordance with Committee D18 policy, this section identifies the l
45、ocation of changes to this standard sincethe last edition (2001(Reapproved 2008) that may impact the use of this standard.(1) Updated 3.1.1, removed 3.2.1, and added 3.2.9.(2) Sections 4, 7, and 8: Minor grammatical changes.(3) Edits to 5.1.1, 5.1.2, and 5.3.3.(4) Edits to 6.1.1 and removal of 6.2.(
46、5) Sections 9 and 10: Re-ordered sentences and minor gram-matical changes.(6) Added Summary of Changes section.D5255 143ASTM 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 express
47、ly 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 revised,
48、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 may att
49、end. 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 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 pho
