Combustible Dusts

Combustible Dusts accumulations limitations

The criteria for a dust hazard are typically based on an evaluation of dust accumulations in areas of the facility. The combustible dust accumulation level that would support a fire and/or explosion, if there was an ignition source present, depends on numerous factors.  For some dusts, accumulation limits are specified. For other dusts, accumulation limits […]

OSHA’s use of NFPA standards in their enforcement of Combustible Dusts hazards

OSHA has been piece-mealing its own standards along with NFPA standards to formulate a Combustible Dusts National Emphasis Program (NEP) since the 2008 Port Wentworth, GeorgiaSugar Refinery explosion.   There is always some confusion about OSHA using consensus standards outside of their own safety standards and when it comes to Com Dust enforcement, they rely heavily

Did the 2018 IFC just codify NFPA 652?

For many of us, it will be coming!  Most states in the USA adopt the International Fire Code (IFC) as their Fire Code and HAZMAT Code; although most adopt a “revised” version of the IFC and most states run anywhere from 5-15 years behind the actual IFC.  For example, my home state of OH just

Proposes Over $1.8 Million in Fines Against a Corn Milling Facility After Fatal Grain Dust Explosion

OSHA has proposed $1,837,861 in fines against a corn milling facility following a May 31, 2017, explosion that killed five workers and injured 12 others, including a 21-year-old employee who suffered a double leg amputation after being crushed by a railcar. OSHA found that the explosion likely resulted from failures to correct the leakage and

OSHA clarifies the NRTL listing/approval requirements for non-electrical vacuum cleaners used in combustible dust atmospheres (OSHA LOI)

Scenario: Some equipment manufacturers believe that all equipment used in combustible dust atmospheres, including non-electrically powered vacuum cleaners, requires NRTL listing/approval. Question: Could OSHA clarify the NRTL listing/approval requirements for non-electrical vacuum cleaners used in combustible dust atmospheres?

Dust Explosion during transfer of Aluminum Powder (Static Electricity)

In November 2015, an operator at an explosives manufacturing plant was tasked with transferring aluminium grit atomised powder (aluminium powder) from a flexible intermediate bulk container (IBC) outside the plant to the hopper inside the plant. Using a pneumatically-driven vacuum suction pump and transfer pipe work (which incorporated five metres of PVC piping) the operator successfully transferred part of

Scroll to Top