I have probably put this out before - we use refractometers a light refracted measuring device. Works on Propylene glycol, ethylene glycol and battery electrolyte. You take 1 drop out of the battery to test VS. 1/8 cup. I think it is less invasive. The reading is instantaneous. No jiggling and dealing with the curvature on the top of the liquid surface.
Possibly could Jamie at Surrette and Rob at NWES weigh in on the advantages or disadvantages on a refractometer? Thanks Dana Orzel Great Solar Works, Inc E - [email protected] V - 970.626.5253 F - 970.626.4140 C - 970.209.4076 web - www.solarwork.com "Responsible Technologies for Responsible People since 1988" Do not ever believe anything, but seriously trust through action. _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org

