US industries discuss new silica sand regulations

By Antonio Torrisi
Published: Friday, 15 November 2013

NISA in favour of monitoring rules but against a lower PEL

The US National Industrial Sand Association (NISA) has urged the country’s Occupational Safety and Health Administration (OSHA) to implement new stringent regulations on monitoring workers’ exposure to crystalline silica, but has strongly opposed a lower permissible exposure limit (PEL).

NISA, a Washington-based group of silica sand industrial...

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