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https://ehssafetynewsamerica.com/2015/01/24/csb-names-poor-design-and-failure-to-test-dust-collection-system-among-causes-of-u-s-ink-new-jersey-flash-fire-that-burned-seven-workers-in-2012-osha-again-urged-to-issue-new-combustible-dust-reg/
"CSB Names Poor Design and Failure to Test Dust Collection System Among Causes of U.S. Ink New Jersey Flash Fire that Burned Seven Workers in 2012; OSHA Again Urged to Issue New Combustible Dust Regulations"