French to English Science Biology (-tech,-chem,micro-) Work with infectious agents - laboratory

I am translating a laboratory safety protocol for a company that does microbiological and molecular tests on animal, environmental and food samples. The protocol covers personal protective equipment and working with scalpels, flames, chemicals, etc. One of the bullets in the section entitled “Travail avec des agents infectieux” is the following instruction: “Il est obligatoire d’employer des anses de plastique lors des manipulations de laboratoire.” The only “anses” that come to mind are inoculating loops, but “manipulations de laboratoire” covers more than streaking plates or working with liquid cultures. What loops is the author referring to, if not inoculating loops? Thanks for your input. There is no other mention of “anses” in the protocol.