Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM E747-04
• Năm ban hành / Publication date: 2004
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Practice for Design, Manufacture and Material Grouping Classification of Wire Image Quality Indicators (IQI) Used for Radiology
• Chỉ số phân loại Quốc tế (ICS) / By field: 19.100 - Thử không phá hủy và thiết bị
• Số trang / Page: 14
• Phạm vi áp dụng / Scope of standard: 1.1 This practice covers the design, material grouping classification, and manufacture of wire image quality indicators (IQI) used to indicate the quality of radiologic images.1.2 This practice is applicable to X-ray and gamma-ray radiology.1.3 This practice covers the use of wire penetrameters as the controlling image quality indicator for the material thickness range from 6.4 to 152 mm [0.25 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 and health practices and determine the applicability of regulatory limitations prior to use.