Monday, December 21, 2009

Hazard Communication -MSDS-Wood Dust

Hazard Communication. I like this MSDS Sheet that Radiance Wood Products has prepared. The stakeholder communicates the hazard to the workers that this wood dust is potentially explosive. As you review the MSDS, notice that the minimum explosive concentration MEC (lower flammability limit) and minimum ignition temperature MIT (autoignition temperature) is included.

So what do you think? Should more fire and explosion physical properties be included?

Posted via web from ComDust


Jeffrey C. Nichols said...

Great job. I would like to see this posted at all applicable process machinery.

Anonymous said...

Following the ANSI Z400 Standard I'd include the following:

Section 2. Hazard Identification:

Emergency Overview

Section 5. Fire Fighting Measures:

Explosion: Avoid generating dust; fine dust dispersed in air in sufficient concentrations, and in the presence of an ignition source is a potential dust explosion hazard.

Section 6. Accidental Release Measures:

Dust Deposits should not be allowed to accumulate on surfaces, as these may form an explosive mixture if they are released into the atmosphere in sufficient concentration.

Avoid dispersal of dust in the air (i.e., clearing dust surfaces with compressed air).

Nonsparking tools should be used.

Section 7. Handling and Storage:

Minimize dust generation and accumulation.

Routine housekeeping should be instituted to ensure that dusts do not accumulate on surfaces.

Dry powders can build static electricity charges when subjected to the friction of transfer and mixing operations. Provide adequate precautions, such as electrical grounding and bonding, or inert atmospheres.

Section 8. Exposure controls/personal protection:

It is recommended that all dust control equipment such as local exhaust ventilation and material transport systems involved in handling of this product contain explosion relief vents or an explosion suppression system or an oxygen- deficient environment.

Ensure that dust-handling systems (such as exhaust ducts, dust collectors, vessels, and processing equipment) are designed in a manner to prevent the escape of dust into the work area (i.e., there is no leakage from the equipment).

Use only appropriately classified electrical equipment and powered industrial trucks:

Section 16. Other Information

Refer to NFPA 654, Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids, for safe handling.

Although particle sizes will differ, if the manufacturer/supplier would provide the KST testing, that would help too.

John Astad said...

Excellent post Anon! I appreciate the time you took in sharing ANSI Z400 format with everybody.


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