>why would one work actively in a chemistry lab without gloves?
The 3D printer pieces will not be used in the lab setting; there is concern that the printed pieces could have micropores that retain corrosive liquids longer than other types of materials. The student project will be to determine the pH of the rinse water after each rinse to see how long it takes to reach a "safe" level for the piece to leave the lab and enter the world of things. Hence the question of what "safe" means.
Thanks to everyone for helping me to refine the question.
Ralph Stuart, CIH, CCHO
Chemical Hygiene Officer
Keene State College
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