Lanthanum, neodymium, gadolinium, dysprosium, yttrium, and their oxides. Method of determination of impurities as oxides of praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium
Occupational safety standards system. Protective clothing to protect from short-term exposure to open flames, heat radiation, convective heat, molten metal splashes, heated contact. Technical requirements and test methods
