MarkT:
I've never been able to fathom why the capacitor industry is so alergic to the nano prefix so adopted this resistor-colour code like scheme, despite the fact its as easy to print a letter as a number, and despite nanoseconds presenting no difficulties to electronics manufacturers!So the strangeness of printing 0.001uF instead of 1nF, or 100,000pF instead of 100nF. For resistor colour codes there is the limitation of the number of separate easily-distinguishable colours - none left for prefixes. For printing text on a flat surface there is no such limitation and adopting a number-of-tens digit leads to much confusion (and here ambiguity - is 100 100 or 10? I've seen 1000 meaning 1000 but it could also validly mean 100...)
Often wondered how a whole segment of industry can develop such an aversion. And its not just nano, its milli, people write 10,000uF instead of 10mF for no discernable reason (again this is never done for microseconds and milliseconds...) I feel there must be a historical reason for this.
Heck, I recall a distant past where schematics would only show caps having uF and uuF as the units of capacitance. 