This standard specifies the spectrophotometric method for the determination of paraaminophenol in urine. The minimum detection concentration of this method is 0.5 mg/L. This standard is applicable to the determination of the concentration of paraaminophenol in the urine of workers exposed to anilines.
WS/T 55-1996 history
1996WS/T 55-1996 Urine.Determination of 4-aminophenol.Spectrophotometric method