GB 7331-1987
Quarantine Regulations for Seed Potato Origin
2003-11
- Standard No.
- GB 7331-1987
- Language
- Chinese
- Release Date
- 1987
- Published By
- Professional Standard - Agriculture
- Replace By
- GB/T 7301-2002
- GB 7331-2003
- Lastest
- GB 7301-2017
- GB 7331-2003
- Scope
- This regulation is applicable to all levels of original (good) seed farms, scientific research institutions, collective units and farmers to produce seed potatoes.
GB 7331-1987 history
- 2017 GB 7301-2017 Feed additive—Nicotinamide
- 2002 GB/T 7301-2002 Feed additive--Nicotinamide
- 1987 GB 7331-1987 Quarantine Regulations for Seed Potato Origin
GB 7331-1987 was changed to GB/T 7301-2002 Feed additive--Nicotinamide.