From: CFKinsey@military.org.jp   
      
   On Sat, 18 Jul 2020 09:39:21 +0100, whit3rd  wrote:   
      
   > On Saturday, July 11, 2020 at 10:52:44 AM UTC-7, Commander Kinsey wrote:   
   >> On Thu, 25 Jun 2020 02:31:23 +0100, whit3rd  wrote:   
   >>   
   >   
   > [about accuracy/error specifications on a multimeter]   
   >   
   >> > That's not the whole story; the percentage part is often a percentage   
   >> > of the FULL RANGE to which the instrument is switched.   
   >   
   >> How do I know which one the % error refers to, as I've never seen it stated   
   in the instructions?  That would make a big difference if I was reading 0.4   
   amps on a 10 amp range.   
   >   
   > When the literature says percent, and doesn't say what it's percent OF, the   
   error   
   > is unspecified.   I've got facemasks that are "90% efficient' which   
   apparently   
   > means that ninety percent of the air I breathe goes through them...   
      
   Now you're just being silly.  The only measurement of face masks is how well   
   they block viruses.  In your case, the mask lets 10% of the virus through,   
   which means it's shit.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)