Which is colder, -40 degrees C, or -40 degrees F? Water is a special case.
Dan -----Original Message----- From: CWFugitt [mailto:c_wa...@earthlink.net] Sent: Thursday, May 24, 2007 12:34 PM To: silver-list@eskimo.com Subject: Re: CS>Concentration?....ppm? Evening Marshall, >>At 10:07 AM 5/24/2007, you wrote: >It is numerically correct. Actually it is mg/kg, but since a kilogram >of water is a liter, then the equation holds. Thanks for explaining all this. >Of course you can for water. The DEFINITION of a liter is 1000 grams of >water. Thus from the definition there are 1,000,000 micrograms in a liter. So, ....... a Liter is a unit of weight? I thought it was a unit of volume? Both I guess. >That is correct, ppm for something is weight/weight, IE for water it >is1 mg/kg of water which equals 1 mg/liter of water. Ok........ maybe I should accept this. I am used to working with weights that have a specific value, always, every day. I suppose this water standard means relatively pure water. Low, very low, EC. I think some water, especially the mineral water in TX, CA, and Nevada would mess up the weight of one liter by some small percent. >It is for the English system. But in the metric system when dealing >with water, volume and weight are interchangeable at STP provided you >know the equalities. I understand that water should have a standard. I don't have any of the mineral water to weigh. Oh well....... I hope to explain a few things that may be of value to the ones that don't normally work with small units in my next message. As always, ......... correct me when I am wrong. Thanks again, Wayne -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <mdev...@eskimo.com>