联合国GHS紫皮书每两年更新一次。继2015年更新的第六版后，在2017年7月联合国发布了 GHS第七修订版，目前刚推出电子版，且只有英语和法语版。在本文中，我们将总结GHS第七修订版的主要变化。
GHS第七修订版的主要变化：
1、易燃气体分类的变动※
第六版：
第七版：
2、进一步的明确某些危害类别的定义。
例如：Skincorrosion/irritation（皮肤腐蚀/刺激）。
第六版：
Skin corrosion（皮肤腐蚀）
Skin corrosionis the production of irreversible damage to the skin; namely,
visible necrosisthrough the epidermis and into the dermis, following the
application of a testsubstance for up to 4 hours1..Corrosive reactions are
typified by ulcers,bleeding, bloody scabs, and, by the end of observation at 14
days, bydiscolouration due to blanching of the skin, complete areas of
alopecia, andscars. Histopathology should be considered to evaluate
questionable lesions.
Skin irritation（皮肤刺激）
Skin irritationis the production of reversible damage to the skin following the
application ofa test substance for up to 4 hours1.
第七版：
Skin corrosion（皮肤腐蚀）
Skin corrosionrefers to the production of irreversible damage to the skin;
namely, visiblenecrosis through the epidermis and into the dermis occurring
after exposure toa substance or mixture.
Skin irritation（皮肤刺激）
Skin irritationrefers to the production of reversible damage to the skin occurring
afterexposure to a substance or mixture.
除“皮肤腐蚀/刺激”以外还有“严重眼损伤/眼刺激”、 “引起呼吸道过敏”、“生殖细胞致突变性”和“致癌性”等，详见GHS第七修订版。
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