1.1 本规程涵盖了通过在模具中浇铸制备好的材料，从基本耐火浇注料中制备试样的程序。根据本程序制备的试样拟用于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====== 2.1 本规程定义了一个程序，以确保产品测试和评估用试样的一致制备。 2.2 这种做法可用于生产商、用户和一般利益方的实验室进行研发或质量控制工作。它特别适用于实验室间比较或产品、产品或产品质量的重复评估或比较，以及规定验收试验用试样的统一制备规程。 2.3 在使用这种做法时，必须认识到，实验室铸造试样的结构可能与现场应用中铸造的材料结构有很大不同。

1.1 This practice covers a procedure for preparing test specimens from a basic refractory castable by casting prepared material in a mold. Specimens prepared in accordance with this procedure are intended for use in ASTM test methods. 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 ====== 2.1 This practice defines a procedure that ensures consistent preparation of specimens for product testing and evaluation. 2.2 This practice can be used in the laboratories of producers, users, and general-interest parties for research and development or quality-control work. It is particularly useful for interlaboratory comparisons or products, for repetitive evaluations or comparisons of products or product quality, and in specifying a uniform preparation practice for specimens for acceptance testing. 2.3 In using this practice it must be recognized that the structure of laboratory-cast specimens may differ significantly from the structure of material cast in field applications.