1、Designation: D5255 14D5255 15Standard 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
2、 of last 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 certification procedures for personnel engaged in testing soil
3、and rock inaccordance with ASTM test methods and is intended for use by independent organizations providing certification services.1.2 Qualifications for certification candidates, qualifications of those administering the certification examinations, methods ofadministering the certification tests, a
4、nd certain certification organization operating requirements are given.1.3 Certification is specific to a single ASTM test method. A monitored written examination and a monitored performanceexamination are normally required.NOTE 1Personnel certification may be an important aspect of a quality system
5、 as described in Practice D3740. Certification of personnel is one meansof meeting personnel qualifications given in Practice D3740.1.4 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 estab
6、lish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.1.5 This practice offers a set of instructions for performing one or more specific operations. This document cannot replaceeducation or experience and should be used in conjunction with
7、 professional judgment. Not all aspects of this practice may beapplicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which theadequacy of a given professional service must be judged, nor should this document be applied without considerati
8、on of a projectsmany unique aspects. The word “Standard” in the title of this document means only that the document has been approved throughthe ASTM consensus process.2. Referenced Documents2.1 ASTM Standards:2D653 Terminology Relating to Soil, Rock, and Contained FluidsD3740 Practice for Minimum R
9、equirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used inEngineering Design and Construction3. Terminology3.1 Definitions:3.1.1 For definitions of common technical terms, refer to Terminology D653.3.1.2 agencyan organization, or part of an organization, engaged in act
10、ivities of technically oriented testing or inspection, orboth.3.1.3 inspectionthe process of measuring, examining, testing, gaging, or using other procedures to ascertain the quality orstate, detect errors or defects or otherwise appraise materials, products, services, systems, or environments to a
11、pre-establishedstandard.3.1.4 testingthe determination by technical means of properties, performance, or elements of materials, products, services,systems, or environments that may involve application of established scientific principles and procedures.3.2 Definitions of Terms Specific to This Stand
12、ard:1 This practice is under the jurisdiction of ASTM Committee D18 on Soil and Rock and is the direct responsibility of Subcommittee D18.99 on Quality Control.Current edition approved Aug. 15, 2014May 1, 2015. Published September 2014May 2015. Originally approved in 1992. Last previous edition appr
13、oved in 20082014 asD5255 01D5255 14.(2008). DOI: 10.1520/D5255-14.10.1520/D5255-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary pag
14、e on the ASTM website.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 been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that u
15、sers consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Cons
16、hohocken, PA 19428-2959. United States13.2.1 administratively independentall policy decisions relating to certification matters are the sole decision of the certifyingorganization and not subject to approval by any other body and that all financial matters related to the operation of the certifyingo
17、rganization are segregated from those of the parent or affiliated organization.3.2.2 certificationan action which determines and announces that an individual has fulfilled the pre-established requirementsand is competent to perform the designated task(s) associated with a single ASTM test method.3.2
18、.3 certification organizationan independent body engaged in the evaluation and credentialing of the knowledge andabilities of individuals performing specified tasks.3.2.4 examineecertification applicant involved in the examination process.3.2.5 examinera qualified professional who administers and ev
19、aluates the performance examination component of thecertification process.3.2.6 personnelemployees of inspection and testing agencies who perform soil and rock tests.3.2.7 proctorthe individual responsible for administering the written examination component of the certification process.3.2.8 qualifi
20、ed professionala professional engineer or similar professional who is recognized by peers and associates as havingsoil and rock testing expertise.3.2.9 specifying entitythe organization requiring the certification through provisions in contracts, standards, regulations,codes, and legislation.4. Sign
21、ificance and Use4.1 This practice provides basic criteria for the development and operation of a certification organization, selection ofexamination material for a written examination, and the scope and details of a performance test. The qualifications of the examinerand limitations on the relations
22、hip between the examiner and the examinee are given in this practice.4.2 The basic criteria provided by this practice is intended to be supplemented by more specific criteria serving the requirementsof the certification organization.4.3 It is unrealistic and unintended that each individual be certif
23、ied for every test the employing agency performs. Rather, itshould be a goal of an agency that a majority of personnel normally performing a given test are certified. Depending on the purposeof the testing, it may be appropriate for the client to specify whether or not a certified technician should
24、perform a given test.4.4 Although this practice calls for certification specific to a single ASTM test method, it is not intended the certificationorganization avoid grouping related test methods in the interest of efficiency.5. Certification Organization5.1 Structure:5.1.1 The certification organiz
25、ation shall be administratively independent in matters pertaining to certification.5.1.1.1 Acertification organization that is not a legal entity in and of itself shall provide proof that the organizations governingbody is administratively independent in certification matters from the organization o
26、f which it is part.5.1.2 The certification organization shall disclose, through publication of a publicly available document, rules and proceduresthat describe how the certified individual, the employer, and the specifying entity have input into the certification process, policiesand decisions of th
27、e organization.5.2 Resources:5.2.1 The certification organization shall disclose, through publication of a publicly available document, evidence theorganization has the financial resources to properly conduct the certification activities.5.2.2 The certification organization shall disclose, through p
28、ublication of a publicly available document, evidence its staffpossesses the knowledge and skill necessary to conduct the certification activities or has available and makes use of non-staffconsultants and professionals to sufficiently supplement staff knowledge and skill.5.3 Responsibilities:5.3.1
29、The certification organization shall disclose, through publication of a publicly available document, evidence themechanism used to evaluate individual competence is objective, fair, and based on the knowledge and skills needed to properlyperform the test method(s).5.3.2 The certification organizatio
30、n shall publish, at least annually, a summary of certification activities to include numbertested, number passing the examinations, number certified, and, when applicable, number re-certified.5.3.3 The certification organization shall provide a mechanism for responding to inquiries from individuals
31、and organizationswanting to verify that a particular certified individual has a specific certification.5.4 Records:5.4.1 The files of the certification organization should contain at least the following:5.4.1.1 Examination identity and date administered,D5255 1525.4.1.2 Examination question source,5
32、.4.1.3 Identity and qualifications of written examination proctor,5.4.1.4 Identity and qualifications of performance examination examiner, and5.4.1.5 Examination question performance statistics.5.5 Evidence of Certification:5.5.1 Evidence of certification shall be issued by the organization to the c
33、andidate upon successful completion of theexaminations. Certification shall include the date of certification, the period of certification, and the ASTM test method or testmethods for which the examinee is qualified.5.5.1.1 The ASTM test method shall be listed by use of “ASTM,” the test method desig
34、nation, and the year of the version usedfor the certification, for example, “ASTM D XXXX 86.” DXXXX 86.”6. Examiner6.1 The performance examination examiner shall be a qualified professional with at least five years of experience at performingand supervising the performance of a variety ofASTM test m
35、ethods 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, or an associate (co-worker) of the examinee.6.1.1.1 When there is a possibility of conflict of interest, documentation shall be attached to the
36、examinees file certifying thereis sufficient separation in the organizations structure between the examiner and examinee so it is not in the examiners interestwhether or not the examinee is certified.7. Examinee7.1 Examinee must be sufficiently literate to read and answer questions of the written ex
37、amination, to be capable of performingrequired calculations, to place necessary data in forms or unformatted data tables, and personally perform the test method(s).8. Certification and Re-Certification8.1 Initial certification shall be valid for a period not to exceed five years. This period for whi
38、ch the certification is valid shallbe clearly and prominently stated on any documents that attest to the certification(s) held by the individual.8.2 Recertification shall be valid for a period not to exceed five years. This recertification action and the period for which therecertification is valid
39、shall be clearly and prominently stated on any documents that attest to the certification(s) held by theindividual.8.2.1 The recertification process shall involve, as a minimum, the performance examination.NOTE 2An appropriate written examination should be given if sufficient changes to the test met
40、hod have occurred which cannot be properly coveredby the performance exam.8.3 Revocation of certification for just cause shall occur only after due process is provided to the person charged.9. Written Examination9.1 Qualified professionals thoroughly familiar with the ASTM test method(s) shall prepa
41、re the written examination. Theexamination shall be changed periodically. All measures required to prevent compromise of the examination shall be taken.9.1.1 When there is reasonable suspicion of a compromised examination, that examination shall not be used.9.2 The examination shall stress the essen
42、tials of the ASTM test method(s), as well as details. In particular, common sourcesof error of the test should be the basis for a number of examination questions. A basic understanding of the principles underlyingthe test method(s) and the basis of some of the required calculations for the test meth
43、od(s) should also be stressed. The questionsshall cover the test method(s) elements such as apparatus, specimen preparation, test procedure, and report requirements.9.3 The written examination shall be given in a room that provides the lighting level, noise control, work space, ventilation, andtempe
44、rature control universally recognized as necessary for a testing facility in which written examinations are administered.10. Performance Examination10.1 One or more examiners meeting the requirements of Section 6 shall administer the performance examination.10.2 The examiner shall conduct the perfor
45、mance examination for a given ASTM test method in accordance with apre-established checklist that recognizes and evaluates the steps that must be done to properly perform the test method.10.3 The performance examination shall be given in an environment that duplicates or attempts to duplicate the en
46、vironmentwhere the ASTM test method is normally conducted.11. Keywords11.1 certification; evaluation; examination; personnel; personnel certification; personnel evaluation; personnel testing; testingD5255 153SUMMARY OF CHANGESIn accordance with Committee D18 policy, this section identifies the locat
47、ion of changes to this standard sincethe last edition (2014) that may impact the use of this standard.(1) Revised 5.1.2.SUMMARY OF CHANGESIn accordance with Committee D18 policy, this section identifies the location of changes to this standard sincethe last edition (2001(Reapproved 2008) that may im
48、pact 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.(5) Sections 9 and 10: Re-ordered sentences and minor grammatical changes.(6) Added Summary o
49、f Changes section.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 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 revised, either reapproved or withdrawn.Your comments are invited eith
