This International Standard outlines guidance for measuring radon-222 activity concentration and the potential alpha energy concentration of its short-lived decay products in the air. Part 4 of series ISO 11665 gives indications for measuring the average activity concentration of
DIN ISO 11665-4-2021由德国标准化学会 DE-DIN 发布于 2021-06-00,并于 2021-06-01 实施。
DIN ISO 11665-4-2021在国际标准分类中归属于: 13.040.01 空气质量综合。
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