Aiming to provide reference for the further implementation of GHS and the sound management of chemicals by relevant authorities and enterprises, this article generally introduces the coming changes of main technical contents in the 8th revised edition of UN GHS Purple Book (GHS rev. 8). These changes were included in the amendments (ST/SG/AC.10/46/Add.3) to the seventh revised edition of UN GHS Purple Book（ST/SG/AC.10/30/Rev.7）, which was published by the Committee of Experts on TDG and GHS of the UNECE on 18th March, 2019. By the way, the GHS Purple Book Revision 8 (GHS Rev.8) is expected to be published in July 2019.
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