Fertilizers. Spectrophotometric determination of biuret in urea

BS EN 15479:2009 Fertilizers. Spectrophotometric determination of biuret in urea

BS EN 15479 specifies a method for the determination of biuret in urea. The method applies to urea and urea-based fertilizers.

Contents of BS EN 15479:

• Foreword
• Scope
• Normative references
• Terms and definitions
• Principle
• Reagents
• Apparatus
• Sampling and sample preparation
• Procedure
• Calculation and expression of the result
• Precision
• Test report
• Results of the inter-laboratory tests
• Bibliography