Assertion: aluminum foil | /r/HasProperty | about 1 mil
Facets:
Source sentences:
text: Aluminum foil is about 1 mil (25 µm); a thickness of 10 mils (250 µm) (ten times thicker) offers less than 1 dB of shielding at 1 kHz, about 8 dB at 10 kHz, and about 25 dB at 100 kHz.
text: Aluminium foil is about 1 mil (25 μm); a thickness of 10 mils (250 μm) (ten times thicker) offers less than 1 dB of shielding at 1 kHz, about 8 dB at 10 kHz, and about 25 dB at 100 kHz.