This standard specifies the determination of pepper content - spectrophotometric method. This standard is applicable to the determination of piperine content of black and white pepper and black and white pepper powder.
GB/T 17528-1998 history
2009GB/T 17528-2009 Determination of piperine content.Method using HPLC
1998GB/T 17528-1998 Determination of piperine content--Spectrophotometric method