Warren D W, Selchan D F
Ashland Chemical Company, Environmental and Occupational Safety Department, Columbus, OH 43216.
Am Ind Hyg Assoc J. 1988 Dec;49(12):630-4. doi: 10.1080/15298668891380367.
For nearly two decades, triethylamine and dimethylethylamine have been used as catalysts for phenolic urethane cold box binders in the foundry industry. During that time there have been reports of employees experiencing visual disturbances as a result of exposure to these amines. Some of these accounts have reported visual disturbances occurring at exposure levels below present limits. This study was conducted to define visual effects experienced by employees and to determine ambient concentrations at which effects were occurring. Study results suggest that present exposure limits may not be adequate to prevent the occurrence of visual disturbances. Suggested exposure guidelines have been developed which, it is believed, will prevent the occurrence of these unwanted effects.
近二十年来，三乙胺和二甲基乙胺一直被用作铸造行业中酚醛聚氨酯冷芯盒粘结剂的催化剂。在此期间，有报告称员工因接触这些胺类物质而出现视觉障碍。其中一些报告称，在低于当前限值的接触水平下就出现了视觉障碍。开展这项研究是为了确定员工所经历的视觉影响，并确定出现这些影响时的环境浓度。研究结果表明，目前的接触限值可能不足以防止视觉障碍的发生。现已制定了建议的接触指导方针，据信这些指导方针将防止这些不良影响的发生。
