Talk:Flammability limit

Chemistry Mid‑importance

	This article is within the scope of WikiProject Chemistry, a collaborative effort to improve the coverage of chemistry on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ChemistryWikipedia:WikiProject ChemistryTemplate:WikiProject ChemistryChemistry articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

‹See TfM›

Physics Low‑importance

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
Low	This article has been rated as Low-importance on the project's importance scale.

Occupational Safety and Health B‑class High‑importance

	This article is within the scope of WikiProject Occupational Safety and Health, a collaborative effort to improve the coverage of articles related to occupational safety and health on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Occupational Safety and HealthWikipedia:WikiProject Occupational Safety and HealthTemplate:WikiProject Occupational Safety and HealthOccupational Safety and Health articles
B	This article has been given a rating which conflicts with the project-independent quality rating in the banner shell. Please resolve this conflict if possible.
High	This article has been rated as High-importance on the project's importance scale.

Untitled

Flammable limits and explosive limits are the same thing. See D. A. Crowl and J. F. Louvar, Chemical Process Safety: Fundamentals with Applications, 2nd ed., Prentice Hall: NY, 2002.

Also, flammable limits are defined only for air. They are normally at 1 atm and 25^oC.

LeChateliers rule is only an approximation. It works reasonably for the LFL and less well at the UFL.

The mole fraction in LeChateliers rule is a mole fraction calculated with other non-flammable gases, such as oxygen and nitrogen, excluded. --Engineerche (talk) 00:59, 16 March 2008 (UTC)[reply]

Too Many Examples?

The table of examples is growing at a rather rapid rate and now seems to becreatijng am imballance in the article as it seems to be becoming a reference table rather than a few examples to illustrate the main text. Shouldn't this listing be cut down in size? Or failing that shouldn't there be citations for each assertion in the table? Pzavon (talk) 01:00, 6 February 2009 (UTC)[reply]

I'd like to see the flammability limits stated as GRAMS of fuel per cubic meter of air, rather than percentages; as that ratio is open to speculation - being 3% - is that by way of the volume or the weight of vapor OR the initial weight of the fuel vaporised into the air etc.; and some fuels being liquid OR gas in their fundamental states, complicates the scenario.

Having the grams of fuel per cubic meter of air; is a defined ratio.

—Preceding unsigned comment added by 210.1.214.106 (talk) 02:11, 12 June 2009 (UTC)[reply]

High pressure effect

Many years ago when working in oil field engineering I saw a graph showing the UEL for CH4-air rising to around 50% at high pressures (say, 1000+ psi). Can anybody verify this and put up a citable reference? Casey (talk) 13:17, 28 September 2011 (UTC)[reply]

Assessment comment

The comment(s) below were originally left at Talk:Flammability limit/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.

I have read the explosive limit and the flammability limit pages. They are clearly related, although not the same thing. The most logical way I see to merge the two pages would be to make a section in the explosive limits page called flammability limits, and copy the cursory definition from here to there. As a result, I see no information based reason to merge the pages.

By the way, the pressure unit on this page should probably be millibar. There has been a lot of study on explosive levels at 1 bar, since that is atmospheric pressue. Any thoughts?

65.127.91.226 13:17, 17 August 2007 (UTC)[reply]

Last edited at 13:17, 17 August 2007 (UTC). Substituted at 15:15, 29 April 2016 (UTC)

External links modified

Hello fellow Wikipedians,

I have just modified one external link on Flammability limit. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

Added archive https://web.archive.org/web/20090601224141/http://www.americanchemistry.com:80/s_acc/sec_solvents.asp?CID=1488&DID=5735 to http://www.americanchemistry.com/s_acc/sec_solvents.asp?CID=1488&DID=5735

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 13:16, 1 January 2017 (UTC)[reply]

Incomplete sentence

The beginning of the last paragraph in the introductory section of the article is only a compound subject; it is missing a predicate (or vice versa perhaps). The fragment is reproduced below for convenience (parentheticals removed for clarity):

"The highest concentration of a gas or vapor above which a flame will not spread in the presence of an ignition source." 8.48.91.162 (talk) 15:16, 17 July 2022 (UTC)[reply]