Hello, Maud. Maud Essen wrote:
> I have had the good fortune to scavenge a Mettler Gram-Matic Balance > model B6 that apparently has a maximum capacity of 99.999g. As I am > still in 2-liter or less experimental scale, its relatively small > capacity is just fine for now. This is what it looks like: > > http://used-line.com/cgi-bin/used/~4055330_/METTLER_GRAM_MATIC_100G.htm The way you calibrate it is with standard weights. Good luck finding a set, though. That's a very acurate scale, but not versatile enough. Mettlers in general are very nice scales, and VERY acurate, but they tend to be very light in capacity. This one is really overkill for making biodiesel. We don't generally need 0.0001g acuracy. It's like using a needle threader to pull a rope through a tire. Check this out: http://search.ebay.com/search/search.dll?query=ohaus&ht=1&sosortproperty=1&from=R10&BasicSearch= The Ohaus scales are a bit less acurate, but acurate enough to get the job done, they have more capacity by an order of magnitude, and they're also a LOT less expensive. A good Ohaus scale might make a good complement to your Mettler. Use the light capacity but very acurate Mettler to do the analytic work, like titrations, and then the Ohaus for full size batches. Of course, the best way to assure that this would work would be to calibrate both scales with the same standard weights. If you can find a set. AP Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/index.php?list=biofuel Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Ink Cartridges or Refill Kits for your HP, Epson, Canon or Lexmark Printer at MyInks.com. Free s/h on orders $50 or more to the US & Canada. http://www.c1tracking.com/l.asp?cid=5511 http://us.click.yahoo.com/mOAaAA/3exGAA/qnsNAA/FGYolB/TM ---------------------------------------------------------------------~-> Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/biofuel/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
