We had a lab experiment this morning, I'm not sure what are the chemicals since our teacher did not say anything about it. So, by the end, when we were cleaning. We placed the well tray on the sink then my classmate opened the water and the water and chemical fly off to my arm. I immediately wash it off with water then soup. But I'm still not sure if it's okay already. I just washed it off once and when i go home I washed it 2-3 times.