No, all water does not have the same specific gravity. Pure water does.
However for our purposes using distilled water the specific gravity should be nearly identical. And very very close to 1 gram per cc. The deviation being equal to the dissolved solids in distilled water. Trust me the basis of weight in the metric system is 1 cubic centimeter of water = 1 gram. http://en.wikipedia.org/wiki/Gram 1 fluid oz of water weighs 1oz avoirdupois From: CWFugitt [mailto:c_wa...@earthlink.net] Sent: Thursday, May 24, 2007 12:27 PM To: silver-list@eskimo.com Subject: RE: CS>Concentration?....ppm? At 08:53 AM 5/24/2007, you wrote: in the case of water 1 cc weighs EXACTLY one gram. A pint is a pound the whole world round ya know? Water is THE standard for volume and weight. I did not find this in the "international System of Units". Short simple, ....... you actually think all water weighs the same ? Wayne 10ppm CS has 10mg silver per liter. 1000mg per gram. 100 liters per gram @ 10ppm. This is why the metric system is more sensible. IE it would be easier to drown yourself in CS than to get argyria if your figures are correct. From: CWFugitt [mailto:c_wa...@earthlink.net] Sent: Wednesday, May 23, 2007 11:57 PM To: silver-list@eskimo.com Subject: CS>Concentration?....ppm? At 10:06 PM 5/23/2007, you wrote: ppm and mg/l are the same. I doubt that. One is a unit of weight, the other a unit of volume. This statement sounds like something used in the medical profession. Where did you learn that? It might be true on some things, but weight and volume does not make specific amounts or ratios. No one can say how many mg makes a liter. Try lead, gold, water, ice, ice cream, whipping cream, and 10, 000 other things. All are different of course. Typically, in most cases, ppm is a weight, 1 to 1 million, Most calculations are done this way. The unit can be anything, ounces, grams, mg, pounds, tons or whatever. Weight to Volume is doomed to failure and errors. Wayne
