The Food Inspection Measure Regulation Article 12

The application for re-examination may be filed only once with the re-examination fees.If there is no appropriate storing measure for the sample, the re-examination application in the preceding paragraph may be rejected.
中文原文 食品查核檢驗管制措施辦法第12條
食品業者申請檢體複驗以一次為限,並應繳納檢驗費用;原檢驗機關(構)應優先複驗。
抽樣之檢體無適當方法保存者,得不受理其前項之申請。

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