| Standard ID | NY 1821-2009 (NY1821-2009) |
| Description (Translated English) | Safety specifications for smashed root-stubble machinery |
| Sector / Industry | Agriculture Industry Standard |
| Classification of Chinese Standard | B91 |
| Classification of International Standard | 65.060.20 |
| Word Count Estimation | 6,620 |
| Date of Issue | 2009-12-22 |
| Date of Implementation | 2010-02-01 |
| Quoted Standard | GB 10395.1-2001; GB 10396 |
| Drafting Organization | Jilin Agricultural Machinery Testing Station |
| Administrative Organization | National Agricultural Machinery Standardization Technical Committee |
| Regulation (derived from) | Ministry of Agriculture Bulletin No. 1298 |
| Summary | This standard specifies the stubble chopper machine safety, safety signs, and use of information security requirements. This standard applies to stubble chopper machine. |