Apparently, you think it is within the realm of possibility for Neville to decant a volume of liquid repeatedly within an error of less than 5 parts per million...
Dan On Tue, Mar 1, 2011 at 9:02 AM, Marshall <[email protected]> wrote: > OK, then you were actually measuring a change in density instead of weight. > That would likely have been an decrease in volume then instead of a decrease > in weight. > > This could be cause by any of the following: > > 1. scale accuracy > 2. scale repeatability > 3. temperature difference in the liquids at time of measurment. > 4. pipette accuracy/repeatibility > 5. actual density reduction > > Actual density reduction could be due to temperature variation or a change > in the structure in the water. For instance if water crystallizes when > freezing, the density will drop about 10%. > > Marshall > > On 2/28/2011 5:37 PM, Neville Munn wrote: > > Hope this doesn't come thru twice, had to cut. > > Yep, sure. > > 2 Different solutions used: (a) 19 days old @ 12.1uS/006-7ppm, (b) 3 days > old @ 18.5uS/009-010ppm. > > Step 1: Ensure digital scale was zero'd and reading in grams. Praps I could > have used 'ct' or 'gs' {which I assume is 'grain'} or 'dwt' {don't know what > that is} > Step 2: Weigh empty 30ml plastic medicine cup. > Step 3: Syringe 5cc/ml plain DW into cup...weigh that, then subtracted cup > weight from DW. > Step 4: Empty and dry cup thoroughly. > Step 5: Syringe 5cc/ml EIS into cup...weight that, then subtracted cup > weight from EIS. > Step 6: Subtact this result from the other. > > N. > ________________________________ > Date: Mon, 28 Feb 2011 12:52:56 -0500 > From: [email protected] > To: [email protected] > CC: [email protected] > Subject: Re: CS>Wet weight? > > Can you elaborate a bit more on your procedure? > > Marshall > > > > -- The Silver List is a moderated forum for discussing Colloidal Silver. Rules and Instructions: http://www.silverlist.org Unsubscribe: <mailto:[email protected]?subject=unsubscribe> Archives: http://www.mail-archive.com/[email protected]/maillist.html Off-Topic discussions: <mailto:[email protected]> List Owner: Mike Devour <mailto:[email protected]>
