Talk:Bottled gas
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[edit] Color
In the section ==Gas state in cylinder==, what standard is being referred to? Or, if no standard is followed in the United States, what is the basis for listing a color as the common color that is used in the United States? For instance, I've seen many yellow air cylinders but maybe only one black nitrogen cylinder (most have been purple/maroon). Should a note be made about grade (for instance, that black is used for only the very lowest grade of nitrogen (90% nitrogen, if I remember correctly))? I'm curious about the answer but also think this section could be more clearly and accurately worded. Thanks. Ufwuct 14:30, 19 September 2006 (UTC)
- The U.S. colors come from the ethereal "industry standard." The CGA has established guidelines for the color of medical gases (though so far the FDA has not required adherence to it, but companies would be fools not to). But for all other gases, AFAIK, there's just a tradition for the color of cylinders.
- And you're right that the tradition only applies to industrial grades. Most companies any more are attempting to brand their higher grades (specialty gases) with one color for all gases.
- Now that I think about, I don't see why colors are referenced in that section at all. Color has its own section. --Pi3832 16:38, 19 September 2006 (UTC)
- I removed the color information from the Gas state in cylinder section. It was redundant and confusing. (And did a little copy-editing and formatting.) --Pi3832 15:50, 25 September 2006 (UTC)
- Thanks for your edits. I think it is clearer now. If more information needs to be added in the future regarding the color, the color section would be a good place for that. Ufwuct 16:01, 25 September 2006 (UTC)
- I removed the color information from the Gas state in cylinder section. It was redundant and confusing. (And did a little copy-editing and formatting.) --Pi3832 15:50, 25 September 2006 (UTC)
