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I’d like to encourage you to ask questions as we go along to clarify individual points of the standard.
Announce before Keying next slide Identifying what is a confined space appears to be the single biggest challenge to industry managers and safety professionals. Under California 5157: Key next Slide
The last definition is probably the most important criteria which today's managers have difficulty facing
Does anyone have any additional examples of confined spaces they have encountered?
A fire or explosion can occur in a confined space by Static Electricity Metal Friction Unapproved lamps or electrical equipment Cigarettes Sparks from grinding or welding
Examples include using Nitrogen or Carbon Dioxide to inert an atmosphere
The symptoms of Low Oxygen include Rapid Breathing at 16% Faulty Judgement and Rapid fatigue at 14% Unconsciousness at 12% Death at 6% Give Example of Chgo Deep tunnel Give example of Utility worker in hole
Say: The hazards associated with confined spaces must be identified by:
Say: In testing air quality, Q: How often do you calibrate your portable instrumentation: What is a calibrated monitor in OSHA’s view?
Say: you may not enter a permit required confined space if you exceed 10% of the LEL
If there is any potential for toxics, you must test for these Carbon Monoxide & Hydrogen Sulfide have poor warning properties.
Question:Audience what is sufficient Frequency?
And:
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AND
Under California 5158, A confined space is defined as: There is a lot of confusion among Gas & Electric Utility workers on how to determine if the space they wish to enter is really a confined space. Examples include: small pits, dig ins bell holes, above ground vaults
Say: Dangerous Air contamination is defined as: Note: Under Cal OSHA 5158, LEL is 20%
Say: If you have possible or potential combustible gases,
![Confined Space Overview ,[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)