1、Designation: C1093 15C1093 15aStandard 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.
2、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 covers the minimum requirements for laboratory personnel, for establishing and maintaining a quality system,and it est
3、ablishes minimum qualifications for agencies engaged in the testing of masonry materials.1.2 Criteria are provided for evaluating the capability of an agency to properly perform designated tests on masonry materials,and for establishing guidelines pertaining to an agencys organization, personnel, fa
4、cilities, and quality system. This practice maybe supplemented by more specific criteria and requirements for particular projects.1.3 This practice can be used as a basis to evaluate testing agencies, and it is intended for use for the qualifying or accreditingof testing agencies, or both, public or
5、 private, engaged in the testing of masonry materials.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 establish appropriate safety and health practices and determine the applicability o
6、f regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C67 Test Methods for Sampling and Testing Brick and Structural Clay TileC109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube Specimens)C117 Test Method for Materials Fine
7、r than 75-m (No. 200) Sieve in Mineral Aggregates by WashingC136 Test Method for Sieve Analysis of Fine and Coarse AggregatesC140 Test Methods for Sampling and Testing Concrete Masonry Units and Related UnitsC143/C143M Test Method for Slump of Hydraulic-Cement ConcreteC173/C173M Test Method for Air
8、Content of Freshly Mixed Concrete by the Volumetric MethodC185 Test Method for Air Content of Hydraulic Cement MortarC230/C230M Specification for Flow Table for Use in Tests of Hydraulic CementC231 Test Method for Air Content of Freshly Mixed Concrete by the Pressure MethodC270 Specification for Mor
9、tar for Unit MasonryC305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic ConsistencyC470/C470M Specification for Molds for Forming Concrete Test Cylinders VerticallyC780 Test Method for Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced U
10、nit MasonryC1072 Test Methods for Measurement of Masonry Flexural Bond StrengthC1232 Terminology of MasonryC1506 Test Method for Water Retention of Hydraulic Cement-Based Mortars and PlastersE4 Practices for Force Verification of Testing MachinesE11 Specification for Woven Wire Test Sieve Cloth and
11、Test Sieves3. Terminology3.1 Definitions:1 This practice is under the jurisdiction of ASTM Committee C15 on Manufactured Masonry Units and is the direct responsibility of Subcommittee C15.07 on Standardsfor Laboratory Accreditation.Current edition approved June 1, 2015Dec. 15, 2015. Published June 2
12、015January 2016. Originally approved in 1988. Last previous edition approved in 20132015 asC1093 13aC1093 15.1. DOI: 10.1520/C1093-13A.10.1520/C1093-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Sta
13、ndardsvolume information, refer to the standards Document Summary page 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 possibl
14、e to adequately depict all changes accurately, ASTM recommends that users 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 standardCopyri
15、ght ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.1 quality systemthe organizational structure, responsibilities, procedures, processes, capabilities, and resources forimplementing quality management.3.2 Definitions of Terms Specific to T
16、his Standard:3.2.1 agencythe organization engaged to test masonry materials as required by a specification or contract.3.2.2 quality system manual (QSM)a manual describing and documenting an agencys quality system.3.2.3 userthe person or organization engaging the agency to provide tests; or using th
17、is practice to evaluate or accredit theagency.3.3 For additional terms used in this standard, refer to Terminology C1232.4. Significance and Use4.1 This practice provides the basic minimum criteria for use in evaluating the qualifications of testing agencies for masonrymaterials. The criteria may be
18、 supplemented by more specific criteria and requirements. It can be used as a guide for internal auditsby individual users.4.2 The intent of this practice is to provide a consensus basis for evaluating a testing agency, with respect to that agencyscapability to objectively and competently provide th
19、e specific services needed by the user.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 is adequately equipped and staffed are performed.5.2 The agency shall ensure that personnel perform only tests for
20、which they are adequately trained, qualified, and certified inaccordance with applicable specifications.5.3 The agency shall ensure that all equipment is properly maintained in good operating condition and is calibrated or verifiedas applicable.5.4 The agency shall perform all testing in accordance
21、with appropriate standards and quality control criteria. Documents uniqueto the user shall be furnished to the agency.6. General Capabilities6.1 Laboratory TestingThe laboratory testing services of the masonry materials testing agency shall include some or all of thefollowing capabilities:6.1.1 Test
22、ing of masonry units in the laboratory,6.1.2 Testing of masonry mortars in the laboratory, and6.1.3 Testing of aggregates for compliance with specification requirements.NOTE 1Since the requirements for construction control can vary from project to project depending upon the nature of the type, locat
23、ion, and intendeduse of the masonry in the project, the capability of the agency for testing should be that necessary to accomplish construction control for the users specificproject or special requirements.7. Personnel Qualifications7.1 Management and SupervisionAll relevant testing services shall
24、be provided under the Full-Time technical direction of aregistered professional Engineer, with at least five years of experience in inspecting and testing masonry materials or a person ofequivalent science-oriented education and experience.7.2 It is satisfactory for a person to fill one or more of t
25、he levels of management in an agency, Manager, Supervisor, orTechnician positions in an agency providing that person is qualified for each position.7.3 Supervising Laboratory TechnicianThe supervising laboratory technician shall have at least five years experienceperforming tests on materials, with
26、at least two years testing masonry materials. This person shall be able to demonstrate, eitherby oral or written examination, or both, the ability to perform the tests normally required in the manner stipulated under ASTMor other governing procedures and shall be capable of evaluating the test resul
27、ts in terms of specification compliance.8. Quality System Criteria8.1 The agency shall establish and implement a quality system that meets the criteria in subsections 8.2 to 8.14.8.2 Quality System Manual (QSM)The agency shall establish and maintain a QSM that conforms to the requirements inSection
28、9. Each document in the QSM shall indicate its preparation date. If a document is revised, the date of revision shall beindicated on the document. The QSM shall be available for use by laboratory staff.C1093 15a28.3 Quality System ManagementThe agency shall designate a person(s) having responsibilit
29、y for the quality system and itsimplementation. The quality manager ensures that activities are being conducted by agency staff in the manner specified in theagencys quality system manual and has responsibility for maintaining and revising it. This individual(s) shall have direct accessto top manage
30、ment (see Note 2).NOTE 2This individual(s) may have other responsibilities (for example, laboratory manager).8.4 Laboratory Procedure ManualA written laboratory procedure manual outlining the method or inspection procedure foreach test or service performed by the laboratory.NOTE 3Inspection and test
31、ing procedures may reference published standards.8.5 EquipmentThe agency shall calibrate or verify all significant testing equipment associated with tests covered by the scopeof this standard which the agency performs. As a minimum, the equipment listed in 8.5.2 shall be included if it is associated
32、 withtests performed by the agency.Applicable equipment shall be calibrated or verified at the intervals specified in the agencys QSM.The intervals specified in the QSM shall be no greater than those indicated in 8.5.2 (see Note 4). Newly acquired equipmentwithout manufacturers certification and equ
33、ipment that has not been calibrated or verified because it has been removed fromservice shall be calibrated or verified before being placed in service. The agency shall have detailed written procedures for allin-house calibration and verification activities not addressed in standards. These procedur
34、es shall indicate the equipment requiredto perform the calibration or verification. In addition to standard test method requirements, the conditions listed in 8.5.2 shall bemet.8.5.1 Calibration and Verification RecordsThe agency shall maintain calibration and verification records for all equipments
35、pecified in the QSM. Such records shall include:8.5.1.1 Description of the equipment calibrated or verified, including identification of the specific piece of equipment using theequipment serial number or other unique identifying designator provided by the agency (see Note 5),8.5.1.2 Date the work w
36、as done,8.5.1.3 Identification of individual performing work,8.5.1.4 Identification of calibration or verification procedure used,8.5.1.5 The previous calibration or verification date and next due date,8.5.1.6 Identification of any calibration or verification device used, and8.5.1.7 Specific criteri
37、a required for each piece of equipment listed in 8.5.2.8.5.2 Masonry Test Equipment:8.5.2.1 Balances and WeightsCalibrate balances and weights at intervals not exceeding 12 months. Record shall include testpoints and corresponding percentage of error.8.5.2.2 Cube Molds and TampersVerify cube molds a
38、nd tampers for conformance to the design and dimensional requirementsof Test Method C109/C109M. Verification shall be performed at intervals not exceeding 30 months.8.5.2.3 Compression Test MachineCompression test machine shall conform to the applicable requirements of Test MethodsC67, C109/C109M, o
39、r C140 and have a capacity, loading range, and the appropriate heads and bearing plates for the specimenstested. Calibrate compression testing machines in accordance with Practices E4. Record shall include test points and correspondingpercentage of error. Calibration shall be performed at intervals
40、not exceeding 12 months.8.5.2.4 Flexural Bond ApparatusFlexural bond apparatus shall conform to the applicable requirements of Test Method C1072.Calibrate the load measuring apparatus in accordance with Practices E4. Record shall include test points and correspondingpercentage of error. Calibration
41、shall be performed at intervals not exceeding 12 months.8.5.2.5 Mechanical ShakersVerify the period of mechanical agitation of mechanical shakers for adequacy of sieving asdescribed in Test Method C136. Record shall include length of time for the proper efficiency of sieving. Verification shall bepe
42、rformed at intervals not exceeding 12 months.8.5.2.6 Mixers (for Specification C270)Inspect and verify mixers for conformance to the requirements of Practice C305.Verification shall be performed at intervals not exceeding 30 months.8.5.2.7 Cylindrical MoldsCylindrical molds shall comply with the req
43、uirements of Specification C470/C470M. Record shallinclude dimensions and results of water-tightness test. Verification shall be performed at intervals not exceeding 12 months.8.5.2.8 OvensVerify oven settings with a verified reference temperature measuring device. Record shall include oven settings
44、,temperature reading at each oven setting, and adjustments if necessary. Verification shall be performed at intervals not exceedingtwelve months.8.5.2.9 Sieve AccuracyVerify sieve accuracy at least annually on each sieve used for sieve analysis (Test Methods C117 andC136). Use any of the following m
45、ethods of verification:Method (1) Verification of each sieve in accordance with the procedures prescribed in the Annex of Specification E11.Method (2) A comparison of the results of a split sample sieved on different sieve sets. Results shall be verified that a singleoperator precision is within the
46、 acceptable range of two results stated in the test method.Method (3) Participation in a sieve analysis test in an aggregate proficiency sample program. Results shall be verified formulti-laboratory precision to be within the acceptable range of two results stated in the test method.Each method of s
47、ieve verification shall include an inspection of the sieve cloth for punctures or obvious defects.C1093 15a38.5.2.10 Temperature Measuring DeviceVerify temperature measuring devices using a NIST-traceable reference temperaturemeasuring device. Record shall include test points and readings at test po
48、ints. Verification shall be performed at intervals notexceeding twelve months.8.5.2.11 TimersVerify timers for accuracy. Record shall include test points, readings at test points. Verification shall beperformed at intervals not exceeding 12 months.8.5.2.12 Water RetentionVerify water retention appar
49、atus for conformance to the applicable requirements of Test MethodC1506. Verification shall be performed at intervals not exceeding 30 months.8.5.2.13 Air Content MeasureVerify air content measure following the procedures described in Test Method C185.Verification shall be performed at intervals not exceeding 30 months.8.5.2.14 Flow TableVerify flow table using the calibration material described in Specification C230/C230M. Verification shallbe performed at intervals not exceeding 30 months, and when table is moved.8.5.2.15 Cone Penetrom
