This standard specifies the qualitative test method for urease. This standard is applicable to the qualitative test of urease in formula food for infants and young children and milk powder.
GB/T 5413.31-1997 history
2013GB 5413.31-2013 Determination of urease in food for infants and young children and dairy products
1997GB/T 5413.31-1997 Milk powder and formula foods for infant and young children--Qualitative detection of urease
GB/T 5413.31-1997 Milk powder and formula foods for infant and young children--Qualitative detection of urease was changed to GB 5413.31-2013 Determination of urease in food for infants and young children and dairy products.