1.1 本指南描述了用尺寸石建造或完成的外墙修复材料和程序。所有的材料、程序和原则都适用于恢复历史和非历史结构。 1.2 虽然许多材料和程序可能适用于室内使用，但本指南并不旨在解决室内尺寸石材的修复问题。 1.3 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 本指南旨在帮助那些希望修复由尺寸石建造或完成的外墙的人。它是对业主、建筑经理、建筑师、工程师、承包商和其他参与恢复尺寸石的人员的帮助。 4.2 本指南无意取代制造商关于使用其特定产品的指示和建议，或建筑师或建筑业主的书面指示。当制造商的指示与本指南相冲突时，请遵循其建议或咨询其技术人员以获得进一步指示。 4.3 在进行全面维修或清洁程序之前，应在不易看到的区域或样本石上测试正在考虑的维修、修补或清洁方法。该测试将有助于判断所选方法的有效性，并允许评估建筑石材的潜在损坏。在进行全面清洁或维修程序之前，全面评估样品维修的成功性。

1.1 This guide describes materials and procedures for restoring facades constructed of or finished with dimension stone. All of the materials, procedures, and principles are suitable for restoration of historic and nonhistosric structures. 1.2 This guide is not intended to address restoration of interior dimension stone, although many of the materials and procedures may be suitable for interior use. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4 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. 1.5 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 The purpose of this guide is to assist those who wish to restore facades constructed of or finished with dimension stone. It is an aid to owners, building managers, architects, engineers, contractors and others involved with restoring dimension stone. 4.2 This guide is not meant to supersede manufacturers' directions and recommendations for the use of their specific products, or written directions from the architect or building owner. When manufacturers' directions are in conflict with this guide, follow their recommendations or consult with their technical staff for further direction. 4.3 Prior to undertaking a full-scale repair or cleaning procedure, the methods under consideration for repair, patching or cleaning should be tested on an area not easily visible or on sample stones. The test will assist in judging the effectiveness of the chosen method and permit assessment of potential damage to the building stone. Completely evaluate the success of the sample repairs before undertaking the full-scale cleaning or repair procedure.