Advantages sof direct sampling are that areas hardest to clean and which are reasonably accessible can be evaluated, leading to establishing a level of contamination or residue per given surface area.
直接取样的好处是可以评估难以清洗和相当容易接近的区域,使得可确定每个给出的表面区域的污染物或残留物的级别。
Advantages sof direct sampling are that areas hardest to clean and which are reasonably accessible can be evaluated, leading to establishing a level of contamination or residue per given surface area.
直接取样的好处是可以评估难以清洗和相当容易接近的区域,使得可确定每个给出的表面区域的污染物或残留物的级别。
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