The Standards Act Article 9

The standards body shall reaffirm national standards for which no proposal for amendment has been submitted within five years after their adoption. The same applies to national standards that have been so affirmed.
中文原文 標準法第9條
國家標準自公布之日起五年內,無修訂之建議時,標準專責機關應加以確認。
經確認之國家標準,亦同。

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