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Daily Quiz (10)


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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CHLOR*RID International Inc.
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HoldTight Solutions Inc.
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US Minerals
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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.


Elcometer, Inc.
New Elcometer 456 Coating Thickness Gauge

Best In Class Just Got Better. Technologically Intelligent And Robust. Marvelous Design And Durability. An Earth-Shattering Revolution In Coating Inspection.


Safway Services
One Source. Every Solution.

The Safway Group is your source for multiservices. Painting, coating, insulation and more – all from the most trusted name in the industry.


SSPC: The Society for Protective Coatings
http://www.sspc.org/

Join SSPC and Enhance
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