Regulations Governing Drug Abuse Urine Testing Operations Article 12

The testing institution shall access the urine specimens into several lots and test them lot by lot, and the quantity of each lot shall be determined in respect of the testing method. Every lot of specimens for initial or confirmatory test shall include proper quantity of quality control urine and blind quality control urine, and shall be tested as common urine specimens.
中文原文 濫用藥物尿液檢驗作業準則第12條
檢驗機構應將尿液檢體分樣後分批檢驗,每一批檢驗之數量依檢驗方法而定。
進行初步或確認檢驗之每一批檢驗,均應含適量之品管尿液及盲品管尿液,並視同一般尿液檢體進行檢驗。

English translation for reference only; the Chinese text prevails. Not legal advice.