Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Gases - Dangerous Concentration Levels

Dangerous vs. tolerable concentration levels for some industrial gases.

Sponsored Links
Gases - Dangerous Concentration Levels
GasGas Concentration (0/00)
Tolerable > 1 hourTolerable < 1 hourImmediately Dangerous
Ammonia 0.1 0.3 3.5
Bromine Vapor 0.001 0.004 0.05
Carbon Dioxide 10 30 40
Carbon Monoxide 0.2 0.5 2.0
Chlorine Vapor 0.001 0.004 0.05
Hydrochloric Acid 0.01 0.05 1.5
Hydrogen Sulphide 0.2 0.6
Iodine Vapor 0.0005 0.003 0.05
Sulphuric Acid 0.05 0.5
  • 1 ppm = 10-6 = 0.0001 o/o = 0.001 o/oo
  • o/oo  = 1000 ppm 
Sponsored Links

Related Topics

  • Physiology

    Human physiology, air quality and comfort temperatures, activity and metabolic rates, health effects of carbon monoxide and more.
  • Risk, Reliability and Safety

    Risk, reliability and safety in process control systems.

Related Documents

Sponsored Links

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

Citation

This page can be cited as

  • The Engineering ToolBox (2012). Gases - Dangerous Concentration Levels. [online] Available at: https://www.engineeringtoolbox.com/gases-dangerous-levels-d_1841.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































2.27.11

Sponsored Links
.