求大神告知 EP中重金属限度的要求?Heavy metals (2.4.27). Unless otherwise stated in an individual monograph or unless otherwise justified and authorised: – cadmium: maximum 1.0 ppm; – lead: maximum 5.0 ppm; – mercury: maximum 0.1 ppm. Where necessary, limits for other heavy metals may be required. Where necessary herbal drugs comply with other tests, such as the following, for example.查看更多