氯气报警器报警值设定多少ppm合适?
  众所周知,氯气是剧毒物质,是一种有毒气体,对人的危害很大,尤其是高浓度的氯气危害是致命的。但是因为氯气在工业领域应用广泛,涉及农药、染料、电子等,在通常情况,我们为了确保安全,使用到氯气的行业都需要安装氯气报警器来对氯气浓度进行安全检测,即保证在一定浓度只范围内,避免出现人员中毒事件。那么氯气报警器报警值设定多少ppm合适呢?下面逸云天小编为您介绍:
人对不同浓度氯气的反应,如下:
浓度(mg/m3)(ppm)  | 反应  | 
30000(10000)  | 一般滤过性防毒面具也无保护作用  | 
3000(1000)  | 深吸入少许可能危及生命  | 
300(100)  | 可能造成致命性伤害  | 
120-180(40-60)  | 接触30-60min可能引起严重损害  | 
90(30)  | 引起剧烈咳嗽  | 
18(6)  | 刺激咽喉  | 
3-9(1-3)  | 有明显的气味、刺激眼、鼻  | 
1.5(0.5)  | 略有气味  | 
0.06(0.02)  | 嗅觉不到浓度  | 
氯气报警器报警值设定:
根据GBZ 2-2002氯气的最高允许浓度(MAC)值为1mg/m3,氯气报警器报警值设定可换算为0.3ppm。

因为氯气非常不稳定,低浓度很难被保存,导致按照SH3063-1999规范要求设置报警点(0.3ppm~0.6ppm)很难准确标定。如果,没有标定的报警器导致误导就更危险。因此,按照“有毒气体的报警(高高限)设定值不得超过10%IDHL值”来设定,因此氯气报警器的报警值最高可设到3ppm,但根据NIOSH(美国国立职业安全与健康研究所)修订数据应设置到1ppm左右。
目前,逸云天的氯气报警器报警值设定在0.01ppm或0.001ppm(0~10 ppm);0.01ppm(0~100 ppm),0.1ppm(0~1000 ppm),1ppm(0~1000 ppm以上),0.1%LEL(0~100%LEL)、0.01%Vol或0.001%Vol(0~99.999%Vol)范围内,当氯气的浓度超过设定值进,可现场声光报警,提醒工作人员及时采取相应的措施,避免造成重大事故的发生,更好地保护人身安全。
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