Maritime Act Article 146

Abandonment shall be effected with respects to the whole of the subject matter insured; provided that, if one of the subject-matters covered under the policy was to conform any cases of abandonment, the insured may abandon that particular subject-matter and claim its amount insured thereof.Abandonment shall be unconditional.
中文原文 海商法第146條
委付應就保險標的物之全部為之。
但保險單上僅有其中一種標的物發生委付原因時,得就該一種標的物為委付請求其保險金額。
委付不得附有條件。

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