GB/T 2441.9-2001
Determination of Urea-Determination of methylenediurea content-Spectrophotometric method (English Version)
- Standard No.
- GB/T 2441.9-2001
- Language
- Chinese, Available in English version
- Release Date
- 2001
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2011-01
- Replace By
- GB/T 2441.9-2010
- Latest
- GB/T 2441.9-2010
- Scope
- This standard specifies the spectrophotometric method to determine the content of methylene diurea in urea by naphthalene disulfonic acid disodium salt (chromotropic acid). This standard is only applicable to the determination of a small amount of methylene diurea in urea.
GB/T 2441.9-2001 history
- 2010 GB/T 2441.9-2010 Determination of urea-Part 9:Methylenediurea content-Spectrophotometric method
- 2001 GB/T 2441.9-2001 Determination of Urea-Determination of methylenediurea content-Spectrophotometric method
GB/T 2441.9-2001 -All Parts
GB/T 2441.1-2008 Determination of urea.Part 1:Total nitrogen content
GB/T 2441.2-2010 Determination of urea-Part2: Biuret content-Spectrophotomatric method
GB/T 2441.3-2010 Determination of urea-Part 3:Water content-Karl Fischer method
GB/T 2441.4-2010 Determination of urea-Part 4:Iron content-1,10-Phenanthroline spectrophotometric method
GB/T 2441.5-2010 Determination of urea-Part 5: Alkalinity-Titrimetric method
GB/T 2441.6-2010 Determination of urea-Part 6:Water insoluble matter content-Weight method
GB/T 2441.7-2010 Determination of urea-Part 7: Particle size-Sieve method
GB/T 2441.8-2010 Determination of urea-Part 8: Sulphate content-Visible turbidimetric method
GB/T 2441.9-2010 Determination of urea-Part 9:Methylenediurea content-Spectrophotometric method