大家在查： Bravat 邦农 MikeCapps Mumbwa peccorino leftheart 杰弗逊·侯大学学习 guardiancouk Small-Sized Enterprises

0.1ppm

0.1ppm

...管理局(ＦＤＡ)今年为糖果中铅含量所设的新标准为百万分之零点一 (0.1ppm)，这比以前的标准(1.5ppm)要严格得多。　　糖果 …

A second group was fed 0. 1 ppm, and the third 0. 05 ppm, a low dose that wild birds would be exposed to frequently.