Regulations Governing Drug Abuse Urine Testing Operations Article 28
Each batch of confirmatory test specimens shall include at least 10% of quality control urines
中文原文 濫用藥物尿液檢驗作業準則第28條
每一批確認檢驗尿液檢體中，至少應含百分之十之品管尿液。
English translation for reference only; the Chinese text prevails. Not legal advice.