DIN ISO 18589-4-2010 环境土壤中放射性的测量.土壤.第4部分:土壤样品中钚同位素238和钚239+240阿尔法谱法测量(ISO 18589-4-2009)
Measurement of radioactivity in the environment - Soil - Part 4: Measurement of plutonium isotopes (plutonium 238 and plutonium 239 + 240) by alpha spectrometry (ISO 18589-4:2009)