Which organization sets lab accreditation for bulk sampling of asbestos?

The correct choice is the National Institute of Standards and Technology (NIST) because this organization plays a crucial role in establishing standards and accreditation processes for laboratories conducting analysis, including asbestos testing. NIST provides the necessary guidelines and standards that ensure laboratories are capable of accurately analyzing bulk samples for asbestos content. This accreditation is essential for maintaining the quality and reliability of testing, which is particularly important given the health risks associated with asbestos exposure.

In contrast, while the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA) are key regulatory bodies involved in asbestos management and worker safety, they do not directly set the lab accreditation standards for bulk sampling. The EPA focuses on regulating asbestos-related activities and providing guidance on asbestos management, while OSHA primarily governs workplace safety standards, including those pertinent to asbestos handling. The National Bureau of Standards, while a historical entity in standardization, has been integrated into NIST and does not independently set lab accreditation today.