1.1 这种做法 2. 涵盖了用于指示射线图像质量的金属丝图像质量指示器（IQI）的设计、材料分组分类和制造。 1.2 本规程适用于X射线和伽马射线照相术。 1.3 本规程涵盖使用金属丝透度计作为材料厚度范围为6.4 mm至152 mm（0.25 in.至6.0 in.）的控制图像质量指示器。 1.4 以英寸磅为单位的数值应视为标准。 1.5 本标准并不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。 1.6 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。

1.1 This practice 2 covers the design, material grouping classification, and manufacture of wire image quality indicators (IQI) used to indicate the quality of radiographic images. 1.2 This practice is applicable to X-ray and gamma-ray radiography. 1.3 This practice covers the use of wire penetrameters as the controlling image quality indicator for the material thickness range from 6.4 mm to 152 mm (0.25 in. to 6.0 in.). 1.4 The values stated in inch-pound units are to be regarded as standard. 1.5 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. 1.6 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.