What is the numerical standard for 4-in-1 gas detectors?
I believe we all know that the four-in-one gas detector, also known as composite gas detector, can be used for routine detection of four gases, respectively: combustible gas EX, carbon monoxide CO, hydrogen sulfide H2S, oxygen O2, but the four-in-one gas detector in the detection of these gases, but also have the relevant data standard requirements. So what is the four-in-one gas detector value standard? The following Yiyuntian Xiaobian for you to introduce:
On the combustible gas methane value of different concentration ranges:
1, methane (CH4): more than 1.00% of the gas detector alarm;.
2,Methane (CH4) value on the detector is less than 1.00%, it is normal.
3, the detector on the methane (CH4) value of more than 5%, when the bright large explosion risk. Prohibit electric welding.
4,Methane (CH4) value of more than 25% on the detector may cause headache, dizziness, fatigue, lack of concentration, rapid breathing and heartbeat. Go outside for fresh air about every 30 minutes.
About the values of different concentration ranges of carbon monoxide:
Carbon monoxide (CO): more than 24ppm if the gas detector alarms.
Carbon monoxide (CO) above 50ppm on the detector is the maximum level allowed for an adult.
If carbon monoxide (CO) exceeds 200ppm on the detector, there will be a mild headache after (2-3) hours. Dizziness and sadness, go outside for air every 30 minutes or so.
If carbon monoxide (CO) exceeds 400ppm on the detector, leave the area immediately and report to the responsible person.
About the values of different concentration ranges of hydrogen sulphide:
Hydrogen sulphide (H2S): above 10ppm if the gas detector alarms;.
Hydrogen sulphide (H2S): 50ppm-100pa on the detector if there is a pungent smell. Go outside to ventilate about every 30 minutes.
If hydrogen sulphide (H2S) reads 100ppm-200ppm on the detector and the sense of smell is paralysed, leave the area immediately and report to the responsible person.
If hydrogen sulphide (H2S) exceeds 200pm on the detector, poisoning will occur within one hour. Leave the area immediately and inform the responsible person.
About the values of different concentration ranges of oxygen:
Oxygen (02): below 18.0% gas detector alarm.
The gas (O2) reading on the detector is 20.9%, which is the normal level of oxygen in the air.
If the oxygen (O2) reading on the detector is less than 15%, the person will experience shortness of breath, headache, dizziness, tiredness and weakness. Leave the area immediately and report to the responsible person.
