Is notification according to CLP Article 39(b) applicable to the physical hazards of substances contained in mixtures?
Yes, it is. CLP Article 39(b) refers to all hazards. This includes notification of a substance classified for a particular physical hazard and contained in a mixture whenever the mixture is placed on the market and needs to be classified for a physical hazard due to the presence of that substance. It should be noted that the physical hazard class to which the mixture belongs could be different from that of the substance(s) causing the hazard. Expert judgment should be sought in case of doubt.