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1000
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Abstract/Summary
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The German Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area has re‐evaluated the maximum concentration at the workplace (MAK value) for cyclohexylamine. A 4‐hour inhalation study with volunteers showed clear irritation at 10 ml/m3, whereas a time‐weighted average concentration of 2 ml/m3 with peaks of up to 4 ml/m3 was without impact on sensory irritation parameters and neurobehavioral measurements. The MAK value of 2 ml/m3 and classification in Peak Limitation Category I has been retained. No irritation was observed up to 4 ml/m3; therefore, the excursion factor 2 has been retained as well. As cyclohexylamine is a strong base and 10 ml/m3 is clearly irritating, a momentary value of 5 ml/m3 is set.
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