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对10家制鞋厂(全民2家,集体2家,其它为乡镇企业)所进行的苯危害调查小结如下: (一)方法:苯浓度测定用乙醚-丙酮比色法,甲苯。二甲苯用乙醚-乙醇比色法。 (二)诊断标准—GB3230—82《职业性苯中毒诊断标准及处理原则》 (三)结果:测点22个。苯浓度合格点10个,最高值350.65,几何均值70.77;三苯联合评价合格点9个,合格率40.91％。对225名使用粘合剂密切接触苯作业的工人进行了体检,检出观察对象12例(检出率为5.3％)。此次虽未发现中毒病例,但合格率低,究其原因:厂房简陋,拥挤零乱,有毒与无毒作业相混,无通风排毒设备及个人防护措施,所用粘合剂以氯丁胶为多,含毒高。
A brief summary of the benzene hazard survey conducted in 10 shoe factories (2 for the whole country, 2 for the group, others for the township and village enterprises) is as follows: (1) Method: The benzene concentration was determined by the ether-acetone colorimetric method with toluene. Xylene with ether - ethanol colorimetric method. (B) the diagnostic criteria-GB3230-82 “diagnostic criteria and principles of occupational benzene poisoning” (three) the results: measuring 22 points. Benzene concentration of 10 qualified points, the highest value of 350.65, the geometric mean of 70.77; triphenyl evaluation of nine joint points, with a pass rate of 40.91%. A total of 225 workers in close contact with benzene using adhesives were inspected and 12 subjects (5.3%) were detected. Although this did not find the poisoning cases, but the pass rate is low, the reason: the plant is simple, crowded messy, mixed with non-toxic toxic operation, ventilation and detoxification equipment and personal protective measures, the adhesive used as neoprene High toxic.