Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!bellcore!texbell!vector!telecom-gateway From: claris!apple!netcom!onymouse@ames.arc.nasa.gov (John DeBert) Newsgroups: comp.dcom.telecom Subject: Re: Tanks near Telephone Poles Message-ID:Date: 10 Aug 89 20:18:00 GMT Sender: news@vector.Dallas.TX.US Organization: NetCom Services - Public Access Unix System (408) 997-9175 guest Lines: 16 Approved: telecom-request@vector.dallas.tx.us X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@vector.dallas.tx.us X-TELECOM-Digest: volume 9, issue 287, message 9 of 12 in article , I said: > > A yellow cylinder contains compressed air and one that is silver with green > at the top is nitrogen gas. Once or twice, I have seen helium cylinders > (silver with orange) in place, perhaps because nothing else was available(?) > I wasn't sure if nitrogen cylinders also used green as green usually marks oxygen cylinders. Yesterday, while at work, I checked. nitrogen cylinders have beige paint on them, not green. I doubt that any telco would seriously consider pressurising a cable with oxygen... JJD onymouse@netcom.UUCP