Jerry, What does NFG mean? Is there a code book somewhere that we should have access to? Marvin. _____ From: rollei_list-bounce@xxxxxxxxxxxxx [mailto:rollei_list-bounce@xxxxxxxxxxxxx] On Behalf Of Jerry Lehrer Sent: Monday, January 23, 2006 10:55 AM To: rollei_list@xxxxxxxxxxxxx Subject: [rollei_list] Re: cleaning old Rolleinars and filters Peter, In ANY concentration, isopropanol is NFG for human consumption. Jerry "Peter K." wrote: Have you tried drinking the 99%? :-) I do not think you should. The 1% is something that makes it not palatable. Peter K On 1/22/06, Richard Knoppow <dickburk@xxxxxxxxxxxxx> wrote: ----- Original Message ----- From: "Peter K." <peterk727@xxxxxxxxx > To: <rollei_list@xxxxxxxxxxxxx> Sent: Sunday, January 22, 2006 10:48 AM Subject: [rollei_list] Re: cleaning old Rolleinars and filters All the alcohols you buy in the drug store have other ingredients that will leave a residue. While 99% alcohol is very good, there is still residue. The manufacturers add these ingredients so people do not try and use that alcohol (i.e., rubbing, isopropyl, etc.) as a basis for a cocktail. Peter K That has not been my experience with 99% bought from Long's Drugs locally. It cleans without any residue. Ethyl rubbing alcohol is denatured with Acetone and sometimes other materials and does leave a residue. The purpose of the denaturing is to avoid the liquor tax. I would be more concerned with so called Vodka. If it is true Vodka it will have more than alcohol in it. Another good degreaser is Edwal Anti-Stat Film Cleaner. This appears to still be 1,1,1,trichloroethane. --- Richard Knoppow Los Angeles, CA, USA dickburk@xxxxxxxxxxxxx --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list -- Peter K Ó¿Õ¬ _____ No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.14.21/236 - Release Date: 01/20/2006