1.1 该分类确定了与隔热材料和附件直接接触或由老化、火灾或物理干扰等事件间接作用引起的潜在问题和影响。 1.2 分类目的: 1.2.1 该分类的目的是提醒其他人注意潜在的问题、影响、危险或风险。 1.2.2 本分类的目的不是确定风险或危险的程度或潜在危险的极限值。 1.2.3 本分类的目的不是建立或推荐方法或标记，以减少或缓解潜在风险；然而，人们认识到，正确的程序和预防措施可以大大减少或消除一些潜在的问题、影响、危险或风险。 注1: 看见 附录X1 用于评论。 1.3 这一分类确认了生产者和使用者（视情况而定）有责任:( 1. )提供已知影响或危险的信息( 2. )就既定的安全和健康实践提供建议，以及( 3. )确定适用的监管要求。 1.4 该分类并未解决隔热材料和配件在制造过程中的健康和安全问题。 1.5 从该分类中省略一个项目并不意味着没有潜在的问题或影响。 1.6 上市的顺序并不重要。 1.7 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 该分类的目的是确定在绝缘材料和附件的生命周期（安装、服务、拆卸和处置）期间可能因直接接触或间接作用或事件而产生的潜在问题和影响。 4.2 该分类未确定为纠正潜在问题或危险而可能采取的补救或预防措施；相反，其目的是作为一个检查表，使其更容易建设性地处理这些潜力，并确定需要在其他有关绝缘材料或附件的标准中添加哪些具体要求（如有）。（参见 附录X2 信息来源。） 4.3 这种分类认识到，适当的处理和安装程序可以大大减少潜在的问题和影响。 此外，它认识到，在某些情况下，潜在影响或危险的存在或产生源于人为或自然原因的干预行为，或取决于材料或附件的获取或接触。绝缘系统的各个组件之间缺乏兼容性或系统运行的环境条件，或两者都缺乏兼容性，可能会产生意想不到的影响。（参见 附录X3 .)

1.1 This classification identifies potential concerns and effects that could result from direct contact with thermal insulation materials and accessories, or be caused by indirect action of events such as aging, fire, or physical disturbance. 1.2 Intent of Classification: 1.2.1 It is the intent of this classification to alert others to potential concerns, effects, hazards, or risk. 1.2.2 It is not the intent of this classification to establish the degree of risk or hazard or limiting values of potential hazards. 1.2.3 It is not the intent of this classification to establish or recommend methods or markings to reduce or mitigate the potential; however, it is recognized that correct procedures and precautionary measures can substantially reduce or eliminate some of the potential concerns, effects, hazards, or risks. Note 1: See Appendix X1 for commentary. 1.3 This classification recognizes the responsibility of producers and users, as appropriate, to: ( 1 ) provide information on known effects or hazards, ( 2 ) advise on established safety and health practices, and ( 3 ) determine applicable regulatory requirements. 1.4 This classification does not address the health and safety concerns of thermal insulation materials and accessories during manufacture. 1.5 Omission of an item from this classification does not imply an absence of potential concerns or effects. 1.6 There is no importance in the order of listing. 1.7 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 classification is to identify potential concerns and effects which may occur during the life cycle (installation, service, removal, and disposal) of insulation materials and accessories resulting from direct contact or indirect action or events. 4.2 This classification does not identify remedial or preventive steps that may be taken to correct potential problems or hazards; rather it is intended as a checklist that will make it easier to deal constructively with these potentials, and to determine what, if any, specific requirements need to be added to other standards concerning insulation materials or accessories. (See Appendix X2 for sources of information.) 4.3 This classification recognizes that proper handling and installation procedures can substantially reduce the potential concerns and effects. Further, it recognizes that in some situations the presence or creation of potential effects or hazards results from an intervening act of human or natural origin, or depends on access to or contact with the materials or accessories. Lack of compatibility of the individual components of an insulation system with each other or the environmental conditions within which the system will operate, or both, may create unanticipated effects. (See Appendix X3 .)