As we all know, chlorine is a highly toxic substance and a 1 toxic gas, which is very harmful to people, especially the high concentration of chlorine is fatal. However, because chlorine is widely used in the industrial field, involving pesticides, dyes, electronics, etc., in general, in order to ensure safety, industries that use chlorine need to install chlorine alarms to carry out safety testing on chlorine concentration, that is, to ensure that only within a certain concentration range, to avoid personnel poisoning incidents. Then chlorine alarm what ppm is the appropriate alarm value? The following is a brief introduction by Yiyuntian:

human response to different concentrations of chlorine, as follows:

Chlorine alarm setting:

according to GBZ 2-2002, the maximum allowable concentration (MAC) value of chlorine is 1mg/m3, and the alarm value setting of chlorine alarm can be converted to 0.3ppm.

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Because chlorine is very unstable, low concentrations are difficult to preserve, resulting in the setting of alarm points (0.3ppm ~ 0.6ppm) in accordance with SH3063-1999 specifications is difficult to accurately calibrate. It is even more dangerous if an alarm that is not calibrated leads to misleading. Therefore, it is set according to "the alarm (high and high limit) setting value of toxic gas shall not exceed 10% IDHL value", so the alarm value of chlorine alarm can be set to 3ppm at most, but it should be set to about 1ppm according to the revised data of NIOSH (National Institute of Occupational Safety and Health).

currently, the alarm value of chlorine alarm in yiyuntian is set at 0.01ppm or 0.001ppm(0~10 ppm);0.01ppm(0~100 ppm),0.1ppm(0~1000 ppm),1ppm(0~1000 Above ppm),0.1 LEL(0~100 LEL), 0.01 Vol or 0.001 Vol(0~99.999 Vol), when the concentration of chlorine exceeds the set value, the on-site sound and light alarm can be given to remind the staff to take corresponding measures in time to avoid major accidents and better protect personal safety.