DIN ISO 2889 Bb.5-2014 空气传播的核设施堆栈和通风管道放射性物质取样; 补充件5: 活动相关校正因子的评估: 活动相关总损耗因子和活动相关管因子
Sampling airborne radioactive materials from the stacks and ducts of nuclear facilities; Supplement 5: Estimation of the activity-related correction factors: activity-related total-loss factor and activity related tube factor