1.1 本规程描述了从事建筑施工中使用的填缝料和密封剂测试的独立商业材料测试实验室的资格，包括对人员和设备、职责、责任和服务的最低要求。 1.2 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.3 对本标准具有管辖权的小组委员会不知道有任何类似或等效的ISO标准。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 资格预审的重要性- 为了保证测试结果的准确性和认证的可靠性，测试实验室必须经过资格预审。这种做法确立了这些资格。 4.2 合同关系: 4.2.1 尽管测试实验室可能符合本惯例，但在聘请实验室进行测试之前，订约当局应考虑测试实验室与其他相关方的关系，这一点很重要。项目中的其他相关方通常包括待测试材料的制造商、承包商（投标人）、项目业主（用户和订约当局）以及作为业主代理人编制合同文件的建筑师。 4.2.2 许多密封剂制造商都有自己的合格测试设施，用于进行研究和维护其产品的质量控制。一般来说，拥有此类设施的公司愿意证明其产品符合性能标准。订约当局应确定这种关系中是否存在利益冲突。订约当局可能倾向于由合格但独立的测试实验室进行产品测试，以确定是否符合特定性能标准，并报告此类测试。合同文件应明确这一要求，以便投标人能够进行相应的投标。 4.2.3 每个项目的每一种填缝料和密封剂的测试都可能耗资巨大。在小型建筑项目中，如果需要，测试成本可能高于密封剂材料的成本。 另一方面，在大型项目中，与密封剂材料相比，由合格的独立测试实验室测试密封剂并附带认证的成本可能很小，并且与订约当局所需的保证相称。 4.3 合同文件要求: 4.3.1 除了规定项目中使用的填缝料和密封剂应符合的性能标准外，还应说明符合性证明应采用符合本规范要求的测试实验室的认证形式。 4.3.2 如果订约当局希望由独立的测试实验室进行测试和认证，则该附加要求应包含在 4.3.1 .

1.1 This practice describes the qualifications, including minimum requirements for personnel and equipment, duties, responsibilities, and services of independent commercial materials testing laboratories engaged in the testing of caulking and sealants used in building construction. 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.3 The subcommittee with jurisdiction of this standard is not aware of any similar or equivalent ISO standard. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 Importance of Prequalification— For required accuracy of test results and reliability of certification, it is essential that testing laboratories be prequalified. This practice establishes those qualifications. 4.2 Contractual Relationships: 4.2.1 Although testing laboratories may be qualified in accordance with this practice, it is important for the contracting authority to consider the relationship of the testing laboratory with other interested parties before engaging the laboratory to perform the testing. The other interested parties in the project usually consist of the manufacturer of the material to be tested, the contractor (bidder), the owner of the project (user and contracting authority), and the architect who serves as the owner's agent in preparing the contract documents. 4.2.2 Many sealant manufacturers have their own qualified testing facilities that are used to conduct research and maintain quality control of their products. Generally, the companies that have such facilities are willing to certify as to the performance standards with which their products comply. The contracting authority should determine if there are conflicting interests in such a relationship. The contracting authority may prefer that the product testing to ascertain conformance with specific performance standards and the reporting of such testing be performed by a qualified but independent testing laboratory. The contract documents should make this requirement known so that bidders can bid accordingly. 4.2.3 The testing of each caulking and sealant for each and every project can be costly. On a small building project, the cost of testing, if required, may be more than the cost of the sealant materials. On a large project, on the other hand, the cost of testing a sealant with accompanying certification by a qualified independent testing laboratory may be small in comparison to the sealant materials and commensurate with the assurances desired by the contracting authority. 4.3 Requirements in Contract Documents: 4.3.1 In addition to specifying the performance standards that the caulking and sealants to be used on a project shall be in compliance with, state that proof of compliance shall be in the form of certification by a testing laboratory meeting the requirements of this practice. 4.3.2 If the contracting authority desires that the testing and certification be by an independent testing laboratory this additional requirement should be included with the requirements stated in 4.3.1 .