標準號：BS EN 61331-1-2002
中文標準名稱：醫(yī)療診斷時防X射線輻射的防護器具.材料衰減性能的測定
英文標準名稱：Protective devices against diagnostic medical X-radiation - Determination of attenuation properties of materials
標準類型：C73
發(fā)布日期：1995/6/15 12:00:00
實施日期：1995/6/15 12:00:00
中國標準分類號：C73
國際標準分類號：11.040.50;13.280
適用范圍：This part of International Standard IEC 61331 applies to materials in sheet form used for themanufacturing of PROTECTIVE DEVICES against X-RADIATION OF RADIATION QUALITIES generated with X-RAYTUBE VOLTAGES up to 400 kV and a TOTAL FILTRATION of up to 3,5 mm Cu.This part 1 is not intended to be applied to PROTECTIVE DEVICES when these are to be checked for thepresence of their ATTENUATION properties before and after periods of use.1.2 ObjectThis part 1 specifies the methods of determining and indicating the ATTENUATION properties of thematerials.The ATTENUATION properties are given in terms of:— ATTENUATION RATIO;— BUILD UP FACTOR;— ATTENUATION EQUIVALENT OR LEAD EQUIVALENT;together with, as appropriate, an indication of inhomogeneity.Ways of stating values of ATTENUATION properties in compliance with this part of the InternationalStandard are included.— Methods for periodical checks of PROTECTIVE DEVICES, particularly of PROTECTIVE CLOTHING,— methods of determining the ATTENUATION by layers in the RADIATION BEAM, and— methods of determining the ATTENUATION for purposes of protection against IONIZING RADIATIONprovided by walls and other parts of an installation;will be described in separate standards.