[Health precautions and purity requirements of refined chemicals].
D002617:Chemical Industry / Q000592:standards*; D004340:Drug Contamination / Q000517:prevention & control*; D004787:Environmental Pollution / Q000517:prevention & control; D006291:Health Policy; D007558:Italy; D011786:Quality Control
Prevenzione sanitaria e requisiti di purezza nella chimica fine.