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Daily Quiz (15)

True or false: OSHA estimates that its new “Respirable Crystalline Silica in Construction” standard will save over 600 lives and prevent 900 new cases of silicosis each year.

True or false: OSHA’s new Construction Industry Standard on exposure to crystalline silica establishes a PEL of 100 micrograms of silica per-cubic-meter of air at an eight-hour time weighted average (TWA).

What is the new permissible exposure limit for crystalline silica, in micrograms per cubic meter of air, averaged over an 8-hour shift?

True or false: OSHA is expected to ban the use of silica sand as a blasting abrasive in 2016.

According to a study published in The Lancet, how many deaths worldwide were caused by silicosis in 2013?

True or false: According to a published study, elevated exposure to crystalline silica can result when it is present in coating materials being removed by blast cleaning.

True or false: OSHA now forbids the use of silica sand as a blasting abrasive.

True or False: Silica sand and coal slag abrasive with the same particle size distribution will produce different profile depth ranges on blast-cleaned steel.

True or False: In August this year, OSHA issued a proposed rule banning use of crystalline silica as a blasting abrasive.

Why is crystalline silica sand more likely to cause silicosis when it is used for abrasive blasting, as opposed to when it blows around on a beach?

True or false: OSHA’s 2008 National Emphasis Program on Crystalline Silica explicitly identified abrasive blast cleaning as a high-exposure activity.

True or False: OSHA has lowered the permissible exposure limits on crystalline silica.

True or false: Some state highway departments have banned the use of silica sand for abrasive blasting.

Why is crystalline silica sand more likely to cause silicosis when used as an air abrasive blasting material than it is in its natural state, for instance, as beach or river sand?

True or false: Use of crystalline silica sand has now been banned from use as a blasting abrasive in the United States.


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Sika® Industrial Floor Coatings

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SABRE Autonomous Solutions
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Learn how this simple to use, field deployed, automatic robot is eliminating hazards in major confined, cluttered and complex surface preparation projects.

Sidewinder/Persyst Enterprises, Inc.
The Sidewinder Model M2 Solvent Recycler

Combat the rising cost of gunwash, thinners, acetone & more while drastically reducing waste disposal coat.

Desco Mfg. Co., Inc.

Steel Fabrication

• Shipyards
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DESCO Mfg.Co., Inc.

US Minerals
US Minerals -
Black Magnum

With nationwide production and distribution capabilities, U.S. Minerals supplies a complete range of coal slag and other abrasives to meet all of your blasting needs.

Abrasives Inc.
Check our Prices for Blast Abrasives

Faced with higher abrasive costs? We invite you to call & check our rates on Black Magic® coal slag and other quality blast materials. Abrasives Inc. 800-584-7524

Humidity & Temperature Control Equipment

Rental Desiccant Dehumidifiers, ArcticDRY Units, Air Conditioners, Heaters and Generators to help control the climate on your next industrial painting project. Nationwide locations, 24/7 service: (866) 379-2600”

Termarust Technologies
Termarust (HR CSA) Chemically Stops
Active Corrosion

Truss bridge treated with Termarust's (HR CSA) in 1995. This highway & rail truss bridge is still stable and there still is no active corrosion.

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