Flammable Liquids

Just when you think you have seen and heard it all…

At 3:00 a.m. on February 19, 2020, Employee #1, 30, was using a torch to “dry” his shirt after spilling isopropanol on it. The employee’s shirt caught on fire, and the employee picked up the shirt in an attempt to extinguish the flames. The employee started to spin the shirt in his left hand and,…...

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Filling ungrounded process vessel with Isopropyl Alcohol (Flash Fire)

On July 23, 2020, an employee, 30, was looking into a vessel being filled with chemicals, including Isopropyl alcohol, to ensure the level of the mixture was above the blades before turning on the mixers. The access port was mounted with one bolt so the employee could rotate the cover to look in. The employee…...

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OSHA may allow it, but NFPA and IFC allow it ONLY under “special purposes”

I have spent my career working with flammable liquids, and those who have followed my writings on the topic understand why I have stopped using 1910.106 as my baseline flammable liquid safety standard and instead began using either the IFC or NFPA 30. I have been involved in several serious events where atmospheric storage tanks…...

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Flammable Liquid Containers and Size

29 CFR 1910.106(d)(2)(iii) specifies the maximum container size depending upon the category of flammable liquid and the type of material from which the container is made. However, it is not uncommon to see flammable liquids in plastic and glass containers that are larger than allowed by the standard. In many cases the chemical is in…...

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Unloading Flammable Liquids and the Code

As many of you know, I stopped using 1910.106, OSHA’s flammable liquid standard, nearly 20 years ago. Instead, I use the Internation Fire Code for all my Hazardous Materials, especially flammable liquids and gases. This code provides some excellent design/requirements for unloading flammable liquids, which can be one of the HIGHEST RISKS on a plant…...

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Information Signs @ our Flammable Liquid Truck/RCar Unloading Stations

Since 2012, the IFC has required special signage at each Flammable Liquid Truck/Railcar unloading station. This signage is intended to reduce “tank overflow” events (e.g., Loss of Primary Containment (LOPC) events). Here are the requirements:… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...

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Flash Fire inside process vessel – “splashing filling” into an alcohol atmosphere

On July 7, 2020, an employee, 33, was standing on a ladder pouring caramel color from its storage container into a 500-gallon batch of rum that was being made in a 1250-gallon tank of alcohol (type unknown). As the employee began to pour the caramel, a flash occurred due to an electrostatic discharge contacting the…...

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Understanding Table 5704.4.2 – Outdoor liquid storage in closed containers and portable tanks

Table 5704.4.2—Outdoor liquid storage in closed containers and portable tanks (see below) is often referenced when a business wants to store flammable liquids outside the main building. I wanted to take a second to explain the application of that table to those on the EHS team who may not be experienced with the OH Fire…...

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Visibly witnessing the MIE of LPG

Lots of folks find it hard to believe when I discuss Minimum Ignition Energy for flammable vapors/gases and Combustible dust. When we get “shocked” by a door handle in the wintertime, and we can feel it, that is around 10-15 mJ. Most common flammable gases and vapors now have MIE’s less than 1.0 mJ. Watch…...

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What is a “flash point”?

I teach about a dozen flammable liquid courses annually, and it is one of my favorite courses to teach, as I love the technical side of hazardous materials. And my course always starts with a discussion around the 1st step in making a flammable liquid a hazardous material… FLASH POINT. And over the 30+ years,…...

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Two (2) workers injured after HAND SANITIZER BOTTLES spark “minor explosion,” fire at waste facility

The investigation found that they were processing hand sanitizer bottles by shredding them and separating the plastic from the hand sanitizer. During this process, a spark was created from the machine, which initiated a minor explosion and fire. The business has refuted the fire chief’s official account, saying, “There was no explosion at the site.“…...

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Safety Cans vs Trash Cans

This week, I shared some pictures of a setup I encountered last year in an audit I conducted at a manufacturing facility. This sole department was using metal trash cans as ” safety cans,” while the rest of the facility was using FM/UL “approved safety cans” for their “dirty rags” storage. The sight of this…...

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