1、Designation: C1093 12Standard Practice forAccreditation of Testing Agencies for Masonry1This standard is issued under the fixed designation C1093; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number
2、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 covers the minimum requirements forlaboratory personnel, for establishing and maintaining a qualitysystem, and it establishes m
3、inimum qualifications for agenciesengaged in the testing of masonry materials.1.2 Criteria are provided for evaluating the capability of anagency to properly perform designated tests on masonrymaterials, and for establishing guidelines pertaining to anagencys organization, personnel, facilities, and
4、 quality system.This practice may be supplemented by more specific criteriaand requirements for particular projects.1.3 This practice can be used as a basis to evaluate testingagencies, and it is intended for use for the qualifying oraccrediting of testing agencies, or both, public or private,engage
5、d in the testing of masonry materials.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-priate safety and health practices and determine the applica-bility of regulatory li
6、mitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C67 Test Methods for Sampling and Testing Brick andStructural Clay TileC109/C109M Test Method for Compressive Strength ofHydraulic Cement Mortars (Using 2-in. or 50-mm CubeSpecimens)C117 Test Method for Materials Finer than 75-m (No.
7、200)Sieve in Mineral Aggregates by WashingC136 Test Method for Sieve Analysis of Fine and CoarseAggregatesC140 Test Methods for Sampling and Testing ConcreteMasonry Units and Related UnitsC143/C143M Test Method for Slump of Hydraulic-CementConcreteC173/C173M Test Method forAir Content of Freshly Mix
8、edConcrete by the Volumetric MethodC185 Test Method for Air Content of Hydraulic CementMortarC230/C230M Specification for Flow Table for Use in Testsof Hydraulic CementC231 Test Method for Air Content of Freshly Mixed Con-crete by the Pressure MethodC270 Specification for Mortar for Unit MasonryC305
9、 Practice for Mechanical Mixing of Hydraulic CementPastes and Mortars of Plastic ConsistencyC470/C470M Specification for Molds for Forming ConcreteTest Cylinders VerticallyC780 Test Method for Preconstruction and ConstructionEvaluation of Mortars for Plain and Reinforced UnitMasonryC1072 Test Method
10、s for Measurement of Masonry FlexuralBond StrengthC1506 Test Method for Water Retention of HydraulicCement-Based Mortars and PlastersE4 Practices for Force Verification of Testing MachinesE11 Specification for Woven Wire Test Sieve Cloth and TestSieves3. Terminology3.1 Definitions:3.1.1 quality syst
11、emthe organizational structure, responsi-bilities, procedures, processes, capabilities, and resources forimplementing quality management.3.2 Definitions of Terms Specific to This Standard:3.2.1 agencythe organization engaged to test masonrymaterials as required by a specification or contract.3.2.2 q
12、uality system manual (QSM)a manual describingand documenting an agencys quality system.3.2.3 userthe person or organization engaging the agencyto provide tests; or using this practice to evaluate or accreditthe agency.1This practice is under the jurisdiction of ASTM Committee C15 on Manufac-tured Ma
13、sonry Units and is the direct responsibility of Subcommittee C15.07 onStandards for Laboratory Accreditation.Current edition approved July 1, 2012. Published August 2012. Originallyapproved in 1988. Last previous edition approved in 2011 as C1093 11. DOI:10.1520/C1093-12.2For referenced ASTM standar
14、ds, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of 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 Internati
15、onal, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Significance and Use4.1 This practice provides the basic minimum criteria foruse in evaluating the qualifications of testing agencies formasonry materials. The criteria may be supplemented by morespecific cr
16、iteria and requirements. It can be used as a guide forinternal audits by individual users.4.2 The intent of this practice is to provide a consensus basisfor evaluating a testing agency, with respect to that agencyscapability to objectively and competently provide the specificservices needed by the u
17、ser.4.3 This practice may be used as a basis for accreditation.5. Responsibilities and Duties5.1 The agency shall ensure that only tests for which it isadequately equipped and staffed are performed.5.2 The agency shall ensure that personnel perform onlytests for which they are adequately trained, qu
18、alified, andcertified in accordance with applicable specifications.5.3 The agency shall ensure that all equipment is properlymaintained in good operating condition and is calibrated orverified as applicable.5.4 The agency shall perform all testing in accordance withappropriate standards and quality
19、control criteria. Documentsunique to the user shall be furnished to the agency.6. General Capabilities6.1 Laboratory TestingThe laboratory testing services ofthe masonry materials testing agency shall include some or allof the following capabilities:6.1.1 Testing of masonry units in the laboratory,6
20、.1.2 Testing of masonry mortars in the laboratory, and6.1.3 Testing of aggregates for compliance with specifica-tion requirements.NOTE 1Since the requirements for construction control can vary fromproject to project depending upon the nature of the type, location, andintended use of the masonry in t
21、he project, the capability of the agency fortesting should be that necessary to accomplish construction control for theusers specific project or special requirements.7. Personnel Qualifications7.1 Management and SupervisionAll relevant testing ser-vices shall be provided under the Full-Time technica
22、l directionof a registered professional Engineer, with at least 5 years ofexperience in inspecting and testing masonry materials or aperson of equivalent science-oriented education and experi-ence.7.1.1 It is satisfactory for a person to fill one or more of thelevels of management in an agency, Mana
23、ger, Supervisor, orTechnician positions in accordance with 7 and 7.2 providingthat person is qualified position.7.2 Supervising Laboratory TechnicianThe supervisinglaboratory technician shall have at least five years experienceperforming tests on materials. This person shall be able todemonstrate, e
24、ither by oral or written examination, or both, theability to perform the tests normally required in the mannerstipulated under ASTM or other governing procedures andshall be capable of evaluating the test results in terms ofspecification compliance.8. Quality System Criteria8.1 The agency shall esta
25、blish and implement a qualitysystem that meets the criteria in subsections 8.2 to 8.14.8.2 Quality System Manual (QSM)The agency shall es-tablish and maintain a QSM that conforms to the requirementsin Section 9. Each document in the QSM shall indicate itspreparation date. If a document is revised, t
26、he date of revisionshall be indicated on the document. The QSM shall beavailable for use by laboratory staff.8.3 Quality System ManagementThe agency shall desig-nate a person(s) having responsibility for the quality systemand its implementation. The quality manager ensures thatactivities are being c
27、onducted by agency staff in the mannerspecified in the agencys quality system manual and hasresponsibility for maintaining and revising it. This individu-al(s) shall have direct access to top management (see Note 2).NOTE 2This individual(s) may have other responsibilities (for ex-ample, laboratory m
28、anager).8.4 Laboratory Procedure ManualA written laboratoryprocedure manual outlining the method or inspection proce-dure for each test or service performed by the laboratory.NOTE 3Inspection and testing procedures may reference publishedstandards.8.5 EquipmentThe agency shall calibrate or verify al
29、lsignificant testing equipment associated with tests covered bythe scope of this standard which the agency performs. As aminimum, the equipment listed in 8.5.2 shall be included if itis associated with tests performed by the agency. Applicableequipment shall be calibrated or verified at the interval
30、sspecified in the agencys QSM. The intervals specified in theQSM shall be no greater than those indicated in 8.5.2 (see Note4). Newly acquired equipment without manufacturers certifi-cation and equipment that has not been calibrated or verifiedbecause it has been removed from service shall be calibr
31、ated orverified before being placed in service. The agency shall havedetailed written procedures for all in-house calibration andverification activities not addressed in standards. These proce-dures shall indicate the equipment required to perform thecalibration or verification. In addition to stand
32、ard test methodrequirements, the conditions listed in 8.5.2 shall be met.8.5.1 Calibration and Verification RecordsThe agencyshall maintain calibration and verification records for allequipment specified in the QSM. Such records shall include:8.5.1.1 Description of the equipment calibrated or verifi
33、ed,including identification of the specific piece of equipmentusing the equipment serial number or other unique identifyingdesignator provided by the agency (see Note 5),8.5.1.2 Date the work was done,8.5.1.3 Identification of individual performing work,8.5.1.4 Identification of calibration or verif
34、ication procedureused,8.5.1.5 The previous calibration or verification date andnext due date,C1093 1228.5.1.6 Identification of any calibration or verification de-vice used, and8.5.1.7 Specific criteria required for each piece of equip-ment listed in 8.5.2.8.5.2 Masonry Test Equipment:8.5.2.1 Balanc
35、es and WeightsCalibrate balances andweights at intervals not exceeding 12 months. Record shallinclude test points and corresponding percentage of error.8.5.2.2 Cube Molds and TampersVerify cube molds andtampers for conformance to the design and dimensional re-quirements of Test Method C109/C109M. Ve
36、rification shall beperformed at intervals not exceeding 30 months.8.5.2.3 Compression Test MachineCompression test ma-chine shall conform to the applicable requirements of TestMethods C67, C109/C109M,orC140 and have a capacity,loading range, and the appropriate heads and bearing plates forthe specim
37、ens tested. Calibrate compression testing machinesin accordance with Practices E4. Record shall include testpoints and corresponding percentage of error. Calibration shallbe performed at intervals not exceeding 12 months.8.5.2.4 Flexural Bond ApparatusFlexural bond apparatusshall conform to the appl
38、icable requirements of Test MethodC1072. Calibrate the load measuring apparatus in accordancewith Practices E4. Record shall include test points and corre-sponding percentage of error. Calibration shall be performed atintervals not exceeding 12 months.8.5.2.5 Mechanical ShakersVerify the period of m
39、echani-cal agitation of mechanical shakers for adequacy of sieving asdescribed in Test Method C136. Record shall include length oftime for the proper efficiency of sieving. Verification shall beperformed at intervals not exceeding 12 months.8.5.2.6 Mixers (for Specification C270)Inspect and verifymi
40、xers for conformance to the requirements of Practice C305.Verification shall be performed at intervals not exceeding 30months.8.5.2.7 Cylindrical MoldsCylindrical molds shall complywith the requirements of Specification C470/C470M. Recordshall include dimensions and results of water-tightness test.V
41、erification shall be performed at intervals not exceeding 12months.8.5.2.8 OvensVerify oven settings with a certified refer-ence thermometer. Record shall include test points, reading,and adjustments if necessary. Verification shall be performed atintervals not exceeding 4 months.8.5.2.9 Sieve Accur
42、acyVerification of sieve accuracy shallbe performed at least annually on each sieve used in the test forsieve analysis (Test Methods C117 and C136). Any one of thefollowing three methods of verification is acceptable. Eachmethod of sieve verification shall include an inspection of thesieve cloth for
43、 punctures or obvious defects:(1) Verification of each sieve according to the proceduresprescribed in the Annex of Specification E11.(2) A comparison of the results of a split sample sieved ondifferent sieve sets. Results shall be verified for single operatorprecision to be within the acceptable ran
44、ge of two results statedin the test method.(3) Participation in the sieve analysis test in an aggregateproficiency sample program. Results shall be verified formultilaboratory precision to be within the acceptable range oftwo results stated in the test method.8.5.2.10 ThermometersVerify thermometers
45、 using a wateror oil bath and a NIST-traceable calibrated reference tempera-ture measuring device. Record shall include test points andreadings at test points. Verification shall be performed atintervals not exceeding 12 months.8.5.2.11 TimersVerify timers for accuracy. Record shallinclude test poin
46、ts, readings at test points. Verification shall beperformed at intervals not exceeding 12 months.8.5.2.12 Water RetentionVerify water retention apparatusfor conformance to the applicable requirements of Test MethodC1506. Verification shall be performed at intervals not exceed-ing 30 months.8.5.2.13
47、Air Content MeasureVerify air content measurefollowing the procedures described in Test Method C185.Verification shall be performed at intervals not exceeding 30months.8.5.2.14 Flow TableVerify flow table using the calibrationmaterial described in Specification C230/C230M. Verificationshall be perfo
48、rmed at intervals not exceeding 30 months, andwhen table is moved.8.5.2.15 Cone PenetrometerVerify cone penetrometer forthe applicable requirements of Test Method C780. Record shallinclude measured dimensions and masses. Verification shall beperformed at intervals not exceeding 12 months.8.5.2.16 Sl
49、ump Cone and Tamping RodVerify slump coneand tamping rod for the applicable requirements of TestMethod C143/C143M. Record shall include measured dimen-sions. Verification shall be performed at intervals not exceed-ing 12 months.8.5.2.17 Pressure MeterCalibrate pressure meter usingthe procedure found in Test Method C231. Record shall includedetermination of expansion factor; size of the calibration vesselused; and the reading of the meter at the calibration testpoint(s). Calibration shall be performed at intervals not exceed-ing 3 months.8.5.
