Regulations Governing Drug Abuse Urine Testing Operations Article 26
Each batch of initial test specimens shall include at least 10% of quality control urines, and at least among 1% of the blind quality control urines prepared by the testing institution itself.
中文原文 濫用藥物尿液檢驗作業準則第26條
每一批初步檢驗尿液檢體中，至少應含百分之十之品管尿液及百分之一檢驗機構本身之盲品管尿液。