DIN ISO 2889 Bb.2-2012
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2:非等动力取样气溶胶粒子浓度变化评定
Sampling airborne radioactive materials from the stacks and ducts of nuclear facilities - Supplement 2: Assessment of the changes in the concentration of aerosol particles due to non-isokinetic sampling
