Transformers Test 1 Practice

Non-PCB fluid is identified with a Non-PCB tag or sticker, or a marking on the nameplate. This labeling is used so workers can quickly tell that the fluid does not contain PCBs, which affects handling, disposal, and safety procedures. A PCB tag would signal the presence of PCBs, not their absence, so it’s not the right indicator for non-PCB fluid. Color codes and serial numbers serve other purposes (color codes for general tagging schemes, serial numbers for unit identification) and don’t reliably convey whether PCBs are present. So the standard way to indicate non-PCB fluid is a Non-PCB tag/sticker or a Non-PCB marking on the nameplate.