| Standard ID | NB/T 20003.2-2021 (NB/T20003.2-2021) |
| Description (Translated English) | (Non-destructive testing of nuclear island machinery and equipment in nuclear power plants-Part 2: Ultrasonic testing) |
| Sector / Industry | Energy Industry Standard (Recommended) |
| Classification of Chinese Standard | F69 |
| Classification of International Standard | 27.120.20 |
| Date of Issue | 2021-01-07 |
| Date of Implementation | 2021-07-01 |
| Older Standard (superseded by this standard) | NB/T 20003.2-2010 |
| Regulation (derived from) | National Energy Administration Announcement No. 1 of 2021 |