Health Hazard Evaluation Report: HETA 2000-0233-2845, Trilithic, Inc. Indianapolis, Indiana.

摘要

On April 7, 2000, the National Institute for Occupational Safety and Health (NIOSH) received a confidential employee request for a health hazard evaluation (HHE) at Trilithic, Inc., in Indianapolis, Indiana. The request centered on health effects possibly associated with the introduction of a new solvent called NPB in the cold vapor degreaser. The solvent contained 1-bromopropane (1-BP, also called n-propyl bromide), which is commonly contaminated with 2-bromopropane (2-BP, isopropyl bromide). The NIOSH investigators conducted site visits on July 18, and November 8, 2000. During the latter site visit, 1-BP and 2-BP personal breathing zone and area air concentrations were measured to determine employees' exposures to these compounds when cleaning small parts in the cold vapor degreaser.