A nanometre is a unit of length equivalent to 1 billionth of a metre. Simply put, a particle measured by nanometers (NM) means it is very small. 1000 NM equals 1 micron.
Nano Metre
A nanometre is a unit of length equivalent to 1 billionth of a metre. Simply put, a particle measured by nanometers (NM) means it is very small. 1000 NM equals 1 micron.