Its wordings
Arbitration Act
Article 18, paragraph (1)
第十八条第一項
Each amendment that changed this provision, and each that will, oldest first. Each is shown against the wording just before it; where an amendment gives the provision another number, it is followed under the new one. Read it as it stands today
In force today
If the following grounds are found with respect to an arbitrator, the parties may challenge the arbitrator:
当事者は、仲裁人に次に掲げる事由があるときは、当該仲裁人を忌避することができる。