1.1 本规程涵盖了通过冷喷嘴混合喷射制备通常含有铝酸钙水泥（含或不含金属纤维）的耐火试样的程序。根据本规程制备的试样拟用于评估喷补材料所需的标准ASTM试验方法。 1.2 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。 1.3 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。 1.4 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====== 3.1 耐火材料的性能可能会受到其安装方法的影响。本实践试图通过气动喷补将安装过程中遇到的变量降至最低。 3.2 本规程提供了生产用于其他ASTM试验方法的喷补试样的参数。 3.3 本规程可用于生产验收测试、服务评估、制造控制和研发用试样。 3.4 各种设备之间的差异以及程序和操作员技术的差异可能会导致喷补试样的物理性能发生显著变化。建议同一操作员使用相同的设备制作样本，用于相关测试方同意的仲裁测试。具体操作参数应显示在报告中。 3.5 尽管本规程是专门为含有铝酸钙水泥的耐火材料设计的，但可对含有其他粘结系统的喷枪混合料稍作修改后使用。

1.1 This practice covers a procedure for preparing refractory specimens usually containing calcium aluminate cement with or without metal fibers by cold nozzle-mix gunning. Specimens prepared in accordance with this practice are intended for use in standard ASTM test methods required for evaluating gunned materials. 1.2 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. 1.3 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. 1.4 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 ====== 3.1 The properties of refractories can be affected by their method of installation. This practice attempts to minimize the variables encountered during installation by pneumatic gunning. 3.2 This practice provides parameters to produce gunned specimens for use in other ASTM test methods. 3.3 This practice may be used to produce specimens for acceptance testing, service evaluation, manufacturing control, and research and development. 3.4 Differences between various kinds of equipment and the differences in procedures and operator techniques may result in significant variations in the physical properties of the gunned specimens. It is recommended that the same operator use the same equipment to produce specimens for referee testing agreed to by the involved testing parties. The specific operating parameters should be shown in the report. 3.5 Although this practice is specifically designed for refractories containing calcium aluminate cement, it may be used with minor modifications for gun mixes containing other bond systems.