However, in the latter case, levels of the chemical were found to be 0.35-0.55 milligrams per kg, below an acceptable standard of 1 milligram per kg, Wicharn said.

• 不过Wicharn作出了对20吨那批奶制品中三聚氰胺含量等级的说明，为每公斤0.；35-0