00000nz  a2200000n  4500
001  KSH2004023491
005  20040722132816
008  040722 n azknn|abn          |a a|a    | 
150  ▼a검정 선원[檢定線源]▲
450  ▼wr▼i영어▼acalibration source▲
550  ▼wg▼a동위 원소[同位元素]▲