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Kevin Two things One is the labels them selves identify either Nitrox , deco gas (gases above 40 and marked) or oxygen Second is the cylinders have the sticker on the neck of the bottle with fO2 and MOD so by different colors on stickers, different wording and the EANx sticker is larger plus the tapped sticker on the cylinder neck with mix and mod really is easy to notice in the water by the diver and buddy Tom -----Original Message----- From: Kevin Connell <kevin@nw*.co*> To: techdiver@aquanaut.com <techdiver@aquanaut.com> Cc: TOM.MOUNT@wo*.at*.ne* <TOM.MOUNT@wo*.at*.ne*> Date: Thursday, May 14, 1998 3:19 PM Subject: Re: Baker's Dozen Revisited Tom, I don't see how these labeling procedures allow the diver carrying the bottles or a fellow diver to determine what the MOD is on a tank without swimming within 1 foot of the tanks and looking at the normally small and smudged content markings on this small contents sticker. It seems to me (IMHO) that most of these marking standards are to prevent novice divers from taking one of these tanks diving, not to prevent the real danger, which is breathing the wrong mix at the wrong depth, ie UNDERWATER. The only exception being the required "Oxygen" sticker on EAN91 or greater, but again, this is an exception, why not just big numbers indicating the MOD on everything? >From: "Tom Mount" <TOM.MOUNT@wo*.at*.ne*> >To: <wwm@sa*.ne*>, <cavers@ca*.co*> >Cc: <techdiver@aquanaut.com> >Subject: Re: Baker's Dozen Revisited >Date: Thu, 14 May 1998 15:10:35 -0400 >X-MSMail-Priority: Normal >X-Mailer: Microsoft Outlook Express 4.71.1712.3 >X-MimeOLE: Produced By Microsoft MimeOLE V4.71.1712.3 > >C. LABELING EANx MIXTURES WITH LESS THAN 41% OXYGEN > >1. Cylinders already painted yellow must be labeled with a 4 inches (10 >centimeters) green band. The band must wrap around the tank starting at the >flat of the cylinder. The label must state Enriched Air Nitrox (or an >applicable acronym). IANTD has EANx decals available for labeling tanks. >2. Cylinders painted with colors other than yellow require a 6 inches (15 >centimeters) Enriched Air Nitrox band (decal) with the top 1 inch (2.5 >centimeters) and the bottom 1 inch (2.5 centimeters) yellow. The middle of >the band (decal) should be printed with a green background and the message, >Enriched Air Nitrox (or an applicable acronym) printed in yellow for easy >identification. >3. Note: Scuba tanks without a green and yellow label with suitable contents >description-wording to identify Nitrox, EANx or an equivalent acronym must >not be filled by IANTD Facilities. Any color-coding other than yellow and >green violates community standards, IANTD Standards and International >practices. >4. Nitrox (EANx) cylinders must have Cylinder Contents Labels affixed to >them. The Contents label must state the oxygen percentage currently in the >cylinder and the Maximum Operating Depth (MOD). The label must be dated and >signed by the person who purchased (or requested) the mix (verifying he/she >confirmed the O2 percentage). >5. This label may be a separate label, or part of the EANx band. IANTD has >waterproof, reusable Cylinder Contents labels and cylinder content tape >available for order. >6. Nitrox (EANx) cylinders must have a current Visual Inspection (VIP) decal >stated that oxygen-compatible lubricants have been used in the system >(valve, tank neck, and/or cylinder). EANx cylinders used with EAN 41, or >greater, or for direct partial pressure blending use, must have an Oxygen >Service Rated VIP decal. IANTD has VIP decals (which also cover both tank >and valve inspections) available for order. >D. LABELING EANx (GREATER THAN 40%) AND OXYGEN (GREATER THAN 91%) MIXTURES > >1. Cylinders containing oxygen levels of 91% or greater must be painted >either green or white, or have a 10 inches (25 centimeters) long by 4 inches >(10 centimeters) wide green adhesive band decal with the word OXYGEN >clearly and prominently printed in white on it. IANTD has waterproof Oxygen >Cylinder Decals available for order. >2. Cylinders should not be painted in common sport diving colors such as >black or red as underwater these are hard to read the oxygen label. >3. Regulators used with tanks containing high levels of oxygen must also >have green or white second stage covers and/or hose wraps or other means of >identification as oxygen service regulators, leading to the second stage. >Alternatively, the second stage purge buttons may be green or white. >4. Cylinders containing EAN 40 to 90 must have a color-coded oxygen green >and white label decal boldly stating, Decompression Mix EAN* _____. or a >Breathing Gases other than air decal that is red and white. This label must >be 10 inches (25 centimeters) long and 4 inches (10 centimeters) wide. IANTD >has Cylinder Contents labels available for order. * Or, equivalent acronym. >F. LABELING TRIMIX MIXTURES > >1. Cylinders containing Trimix must be labeled with either the word, > Trimix, or Breathing gas other than air. A Cylinder Contents Label >reflecting the percentages of Oxygen, Helium and Nitrogen must be affixed to >the tank. > -------------------------------------------------- Kevin Connell <kevin@nw*.co*> Northwest Labor Systems http://www.nwls.com Bellingham, WA -------------------------------------------------- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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