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Daily Quiz (13)


True or false: If inorganic zinc-rich coatings are left untopcoated in atmospheric exposure, they become more porous over time.


True or false: The new OSHA action level for exposure to crystalline silica has been reduced from 100 micrograms per cubic meter to 25 micrograms per cubic meter, time-weighted average in an 8-hour period.


Where would you find sulfate-reducing bacteria?


True or false: Aliphatic hydrocarbons are among the exposure types listed in SSPC Environmental Exposure Zone 3E, “Chemical Atmospheric Exposure, Severe.”


True or false: Short-term exposure limits (STELs) to hazardous chemicals are measured as a time-weighted average exposure over 8 hours.


While the first documented weathering test for paint occurred in Fargo, ND, where are outdoor weathering exposure tests likely to occur today?


ISO 12944 on corrosion protection of steel with protective coatings lists how many environmental exposure classes?


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


What recent development in construction makes it important for floor coatings to have UV resistance?


True or False? In abrasive blasting work, a dosimeter is used to measure exposure to blasting dust.


How much South Florida outdoor exposure time is required by AAMA 2605, Voluntary Specification, Performance Requirements and Test Procedures for Superior Performing Organic Coatings on Aluminum Extrusions and Panels?


True or False: Outside conditions can contribute to coating failure inside a structure.


SSPC Environmental Exposure Zone 3E, "Chemical Atmospheric Exposure, Severe," includes all but which one of the following exposure types in its description?


 
 
   

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