GB/T 42307-2023
Fertilizers and soil conditioners—Determination of biuret content of urea-based fertilizers—HPLC method
GB/T 2441.2-2010
Determination of urea - Part 2: Biuret content - Spectrophotometric method
GB/T 2441.9-2010
Determination of urea - Part 9: Methylenediurea content - Spectrophotometric method
GB/T 33401-2016
Determination of the urea in liquid fluorescent whitening agent products
GB/T 29661-2013
Determination of urea content in cosmetics - Enzymatic method
SN/T 0840-2015
GB/T 2441.2-2001
Determination of urea—Determination of biuret content—Spectrophotometric method
GB/T 22924-2008
Determination of biuret content for compound fertilizers(complex fertilizers)
GB/T 2441.9-2001
Determination of Urea—Determination of methylenediurea content—Spectrophotometric method
\u0413\u041e\u0421\u0422 32555-2013
Urea for industrial use. Photometric method for determination of biuret content
DB37/T 2121-2012
SN/T 3810-2014
Determination of nitrogen content in urea and ammonium sulphate - X-ray fluorescence spectrometry
T/ZLJYXH 3-2023
UNE-EN 15479:2009
Fertilizers - Spectrophotometric determination of biuret in urea
DB41/T 1355-2016
BS EN 15479:2009
Fertilizers. Spectrophotometric determination of biuret in urea
EN 15479:2009
BS ISO 18643:2016
Fertilizers and soil conditioners. Determination of biuret content of urea-based fertilizers. HPLC method
SN/T 0840-1999
KS M 1932-2002(2007)
Urea for industrial use-Determination of biuret content-Photometric method