1、Designation: C 1021 08Standard Practice forLaboratories Engaged in Testing of Building Sealants1This standard is issued under the fixed designation C 1021; 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 (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice describes the qualifications, includingminimum requirements for personnel and equipment, duties,responsibilities, and
3、services of independent commercial ma-terials testing laboratories engaged in the testing of caulkingand sealants used in building construction.1.2 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 standa
4、rd to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.3 The subcommittee with jurisdiction of this standard isnot aware of any similar or equivalent ISO standard.2. Referenced Documents2.1 ASTM Standards:2C 510 Test Method
5、for Staining and Color Change ofSingle- or Multicomponent Joint SealantsC 603 Test Method for Extrusion Rate and Application Lifeof Elastomeric SealantsC 639 Test Method for Rheological (Flow) Properties ofElastomeric SealantsC 661 Test Method for Indentation Hardness ofElastomeric-Type Sealants by
6、Means of a DurometerC 679 Test Method for Tack-Free Time of ElastomericSealantsC 681 Test Method for Volatility of Oil- and Resin-Based,Knife-Grade, Channel Glazing CompoundsC711 Test Method for Low-Temperature Flexibility andTenacity of One-Part, Elastomeric, Solvent-Release TypeSealantsC 712 Test
7、Method for Bubbling of One-Part, Elastomeric,Solvent-Release Type SealantsC 717 Terminology of Building Seals and SealantsC 719 Test Method for Adhesion and Cohesion of Elasto-meric Joint Sealants Under Cyclic Movement (HockmanCycle)C 731 Test Method for Extrudability, After Package Aging,of Latex S
8、ealantsC 732 Test Method for Aging Effects of Artificial Weather-ing on Latex SealantsC 734 Test Method for Low-Temperature Flexibility ofLatex Sealants After Artificial WeatheringC 736 Test Method for Extension-Recovery and Adhesionof Latex SealantsC 792 Test Method for Effects of Heat Aging on Wei
9、ghtLoss, Cracking, and Chalking of Elastomeric SealantsC 793 Test Method for Effects of Laboratory AcceleratedWeathering on Elastomeric Joint SealantsC 794 Test Method for Adhesion-in-Peel of ElastomericJoint SealantsC 834 Specification for Latex SealantsC 910 Test Method for Bond and Cohesion of On
10、e-PartElastomeric Solvent Release-Type SealantsC 920 Specification for Elastomeric Joint SealantsC 961 Test Method for Lap Shear Strength of SealantsC 1087 Test Method for Determining Compatibility ofLiquid-Applied Sealants with Accessories Used in Struc-tural Glazing SystemsC 1135 Test Method for D
11、etermining Tensile AdhesionProperties of Structural SealantsC 1183 Test Method for Extrusion Rate of ElastomericSealantsC 1184 Specification for Structural Silicone SealantsC 1216 Test Method for Adhesion and Cohesion of One-Part Elastomeric Solvent Release SealantsC 1241 Test Method for Volume Shri
12、nkage of Latex Seal-ants During Cure1This practice is under the jurisdiction of ASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of Subcommittee C24.10 onSpecifications, Guides and Practices.Current edition approved Jan. 15, 2008. Published February 2008. Originallya
13、pproved in 1984. Last previous edition approved in 2001 as C 1021 01.2For referenced ASTM standards, 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
14、website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.C 1246 Test Method for Effects of Heat Aging on WeightLoss, Cracking, and Chalking of Elastomeric SealantsAfter CureC 1247 Test Method for Durability of Sealants Exposed toConti
15、nuous Immersion in LiquidsC 1248 Test Method for Staining of Porous Substrate byJoint SealantsC 1257 Test Method forAccelerated Weathering of Solvent-Release-Type SealantsC 1265 Test Method for Determining the Tensile Propertiesof an Insulating Glass Edge Seal for Structural GlazingApplicationsC 129
16、4 Test Method for Compatibility of Insulating GlassEdge Sealants with Liquid-Applied Glazing MaterialsC 1311 Specification for Solvent Release SealantsC 1367 Test Method for Dead Load Resistance of a Sealantin Elevated TemperaturesC 1382 Test Method for Determining Tensile AdhesionProperties of Seal
17、ants When Used in Exterior Insulationand Finish Systems (EIFS) JointsC 1442 Practice for Conducting Tests on Sealants UsingArtificial Weathering ApparatusC 1501 Test Method for Color Stability of Building Con-struction Sealants as Determined by Laboratory Acceler-ated Weathering ProceduresC 1519 Pra
18、ctice for Evaluating Durability of Building Con-struction Sealants by Laboratory Accelerated WeatheringProceduresC 1589 Practice for Outdoor Weathering of ConstructionSeals and SealantsC 1635 Test Method to Evaluate Adhesion/Cohesion Prop-erties of a Sealant at Fixed ExtensionD 2202 Test Method for
19、Slump of SealantsD 2203 Test Method for Staining from SealantsD 2377 Test Method for Tack-Free Time of Caulking Com-pounds and SealantsD 2452 Test Method for Extrudability of Oil- and Resin-Base Caulking CompoundsD 2453 Test Method for Shrinkage and Tenacity of Oil- andResin-Base Caulking CompoundsE
20、 1301 Guide for Proficiency Testing by InterlaboratoryComparisonsE 1323 Guide for Evaluating Laboratory MeasurementPractices and the Statistical Analysis of the Resulting DataE 1580 Guide for Surveillance of Accredited Laboratories3. Terminology3.1 DefinitionsRefer to Terminology C 717 for definitio
21、nsof the following terms used in this practice: caulking, sealant.3.1.1 authoritythe person (organization) authorizing thetesting.3.1.2 technicianan employee of the testing laboratoryassigned to perform the actual operations of testing.3.1.3 testing laboratorya qualified organization autho-rized to
22、test building sealants for compliance with specifiedstandards.4. Significance and Use4.1 Importance of Prequalification For required accuracyof test results and reliability of certification, it is essential thattesting laboratories be prequalified. This practice establishesthose qualifications.4.2 C
23、ontractual Relationships:4.2.1 Although testing laboratories may be qualified inaccordance with this practice, it is important for the contractingauthority to consider the relationship of the testing laboratorywith other interested parties before engaging the laboratory toperform the testing. The ot
24、her interested parties in the projectusually consist of the manufacturer of the material to be tested,the contractor (bidder), the owner of the project (user andcontracting authority), and the architect who serves as theowners agent in preparing the contract documents.4.2.2 Many sealant manufacturer
25、s have their own qualifiedtesting facilities that are used to conduct research and maintainquality control of their products. Generally, the companies thathave such facilities are willing to certify as to the performancestandards with which their products comply. The contractingauthority should dete
26、rmine if there are conflicting interests insuch a relationship. The contracting authority may prefer thatthe product testing to ascertain conformance with specificperformance standards and the reporting of such testing beperformed by a qualified but independent testing laboratory.The contract docume
27、nts should make this requirement knownso that bidders can bid accordingly.4.2.3 The testing of each caulking and sealant for each andevery project can be costly. On a small building project, thecost of testing, if required, may be more than the cost of thesealant materials. On a large project, on th
28、e other hand, the costof testing a sealant with accompanying certification by aqualified independent testing laboratory may be small incomparison to the sealant materials and commensurate with theassurances desired by the contracting authority.4.3 Requirements in Contract Documents:4.3.1 In addition
29、 to specifying the performance standardsthat the caulking and sealants to be used on a project shall bein compliance with, state that proof of compliance shall be inthe form of certification by a testing laboratory meeting therequirements of this practice.4.3.2 If the contracting authority desires t
30、hat the testing andcertification be by an independent testing laboratory thisadditional requirement should be included with the require-ments stated in 4.3.1.5. Laboratory Responsibilities and Duties5.1 The responsibility of the testing laboratory shall be:5.1.1 To ensure the performance of tests fo
31、r which it isadequately equipped and staffed, and5.1.2 That the laboratorys employees perform only tests forwhich they are qualified.5.2 The following duties are those usually performed by thetesting laboratory:5.2.1 Obtain representative samples of those materials au-thorized to be tested and evalu
32、ated, including complete iden-tification thereof, such as, batch number, lot number, date ofmanufacture, color, and any other pertinent information.C10210825.2.2 Ascertain that there is protection, handling, and stor-ing of the samples to assure that they remain representative ofthe material being u
33、sed at the time of sampling.5.2.3 Ascertain that the samples are identified with therespective portions of the work in which the material repre-sented was, or will be, used.5.2.4 Perform all testing operations in accordance with thedesignated standards.5.2.5 Promptly call to the attention of the con
34、tractingauthority any irregularity or deficiency noted when testing thesealant.5.2.6 Submit promptly to the contracting authority formalreports of tests which indicate compliance or noncompliancewith the specifications. The reports shall be complete andfactual, citing the methods used in obtaining s
35、amples, testsperformed, specified values for the measured characteristics,and related pertinent data. The laboratory shall be prepared tosubstantiate the reports to the fullest extent.5.3 The testing laboratory shall have its laboratory proce-dures and equipment inspected at intervals of no more tha
36、n 3years by a qualified evaluator as evidence of the laboratoryscompetence to perform the required tests.36. Laboratory Management and Supervision6.1 The testing services of the laboratory shall be under thedirection of a person charged with managerial responsibilityand having demonstrated competenc
37、e through educationalbackground or professional experience, or both.6.2 A supervising laboratory technician shall be able todemonstrate ability to perform or direct the tests, or both,normally required in accordance with ASTM or other govern-ing procedure.7. Testing Services7.1 Sealant testing servi
38、ces will normally include several orall of the sampling and testing of caulking and sealantmaterials, curing, and laboratory testing of specimens de-scribed in 8.1.1. and 8.1.2.8. Testing Equipment8.1 Laboratory EquipmentThe testing laboratory shall beequipped to test for compliance with the ASTM an
39、d otherstandards the laboratory indicates it can test. Methods, speci-fications, and practices typically being tested are as follows:8.1.1 ASTM Standards:8.1.1.1 Test Methods C 510, C 603, C 639, C 661, C 679,C 681, C711, C 712, C 719, C 731, C 732, C 734, C 736,C 792, C 793, C 794, C 910, C 1087, C
40、 1183, C 1216, C 1241,C 1246, C 1247, C 1248, C 1257, C 1265, C 1294, C 1367,C 1382, C 1501, C 1635, D 2202, D 2203, D 2377, D 2452,and D 2453.8.1.1.2 Specifications C 834, C 920, C 961, C 1135, C 1184,and C 1311.8.1.1.3 Guide E 1301, E 1323, and E 1580.8.1.1.4 Practices C 1442, C 1519, and C 1589.8
41、.1.2 Other StandardsTest procedures and specificationsfor building sealants under the jurisdiction of federal, state, andinternational organizations.9. Keywords9.1 certification; independent; testing laboratoryASTM International takes no position respecting the validity of any patent rights asserted
42、 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
43、 responsible technical committee and must be reviewed every five years andif not revised, 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 c
44、areful consideration at a meeting of theresponsible technical committee, which you may attend. 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 Internati
45、onal, 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 th
46、e ASTM website(www.astm.org).3The U.S. Department of Commerce, National Institute of Standards andTechnology, National Voluntary LaboratoryAccreditation Program (NVLAP) servesas the evaluator. The NVLAP can be contacted at the National Institute of Standardsand Technology, Building 820, Room 2, Gaithersburg, MD 20899.C1021083
