PDA TR29 5.4 Acceptable Total Carryover
5.3就是计算ARL的公式
5.3 Acceptable Concentration of Residue in Next Product
The first determination is the acceptable level (i.e., concentration) of the target residue in the subsequently manufactured product. This may be called by different terms, but for this document that concentration will be called Acceptable Residue Level (abbreviated ARL).