NF EN 12679-1999

标准号：NF EN 12679-1999
英文标准名称：Non destructive testing-Determination of the size of industrial radiographic sources - Radiographic method
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
国际标准分类号：19.100
适用范围：This standard specifies the determination of the size of gamma radiographic sources of 0,5 mm or greater, madefrom the radionuclides ridium 192, Ytterbium 169, Selenium 75 or Cobalt 60, by a method of radiography withX-rays. The source size of a gamma radiography source is an important factor which affects the image quality ofgamma ray images.The source size is determined with an accuracy of + 10 % or 0,1 mm max.This standard can be used for other radionuclides after validation.