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Considerations for Modifications to NIOSH 5521 and OSHA 47 Air Sampling Methods for Diphenylmethane Diisocyanate (MDI) 

This guidance document provides considerations for modifications to the Occupational Safety and Health Administration (OSHA) air sampling method for MDI: OSHA Method 47.

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American Chemistry Council

The American Chemistry Council (ACC) represents the leading companies engaged in the multibillion-dollar business of chemistry. ACC members apply the science of chemistry to make innovative products, technologies and services that make people's lives better, healthier and safer. ACC is committed to improved environmental, health, safety and security performance through Responsible Care®; common sense advocacy addressing major public policy issues; and health and environmental research and product testing. ACC members and chemistry companies are among the largest investors in research and development, and are advancing products, processes and technologies to address climate change, enhance air and water quality, and progress toward a more sustainable, circular economy.

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