Hi Chuck, the buffers you are looking for: are they to neutralize the activity of disinfectents (e.g. aldehydes, quart. amines)? If so, please mail me (I´m watching this newsgroup not regularly) and I post/mail the buffers in this NG/to you. Klaus **** Posted from RemarQ - http://www.remarq.com - Discussions Start Here (tm) ****