Bitumens and bituminous binders. Determination of breaking behaviour. Part 1. Determination of breaking value of cationic bituminous emulsions by mineral filler method
Lanthanum, neodymium, gadolinium, dysprosium, yttrium, and their oxides. Method of determination of impurities as oxides of praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium