repeat sampling 中文意思是什麼
repeat sampling
解釋
重復采樣-
If the total bacterial count, escherichia coli and or vibrio cholerae of a water sample exceeds the acceptable standard, we would repeat water sampling exercise, immediately raise the free residual chlorine of pool water to 2 ppm and ensure that the ph is between 7. 2 and 7. 8 for at least one hour
如發現細菌含量超越指標,本署會立即抽取樣本再作測試,並即時將池水的氯剩餘量提高至2ppm為時最少1小時,並須維持池水在7 . 2至7 . 8的酸鹼度 -
Procedures and the plan of sampling for repeat test or inspection in product quality audit
產品質量監督復查程序及抽樣方案
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