For benzene toxic gas detectors, what range should be chosen? What range should be chosen for the formaldehyde sensor?
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I would like to ask everyone: what range should be chosen for a toxicity sensor that detects benzene? If there is formaldehyde, please let me know as well.
The range for benzene is generally 0-100PPm
Toxicity probes for benzene generally cover a range of 0-100 PPm. The alarm levels we have set are at 3 PPm and 6 PPm; according to the standards, I think this range is on the high side.
Security checks are strict now, and safety standards must be followed. The result is 0-5 ppm.
According to the formaldehyde standard, it should be 0-1 ppm. The manufacturers don’t have such estimates
There are specific regulations for 50493
Where did they get those **standards from? Good heavens, the standard calculation gives a value of around 8.6, so generally 0–10 ppm is used. The alarm value is 3 ppm, with a high alarm set at 6 ppm
According to the standards, the value for the first-level alarm is around 1.7. How did you calculate it?
I agree with the opinion on floor 8; this is stated in the interpretation of the provisions in the GB/T50493 standard