How many ppm of hydrogen sulfide is a dangerous value? Carbon monoxide

The danger value of hydrogen sulfide is 10 ppm

BW is a product of Honeywell and is manufactured in Honeywell's Mexico facility. The factory-set parameters are as follows: oxygen is underreported at 35ppm with carbon monoxide at 35ppm and at 200ppm high, hydrogen sulfide is reported at 10ppm low and 15ppm is high.

Gas-fired gas is reported at a low of 10% lel and high at 20% lel

Hydrogen sulfide. 1ppm is equal to.

x = 1 34 and the molecular weight of hydrogen sulfide is 64.

The conversion relationship of ppm is: x=m·c, c=

where: x—the concentration value of the pollutant expressed in milligrams per standard cubic meter, c—the concentration value of the pollutant expressed in ppm, and m—the fraction of the pollutant. Use the mass of pollutants in the atmosphere per cubic meter.

The concentration is called mass-volume concentration and is measured in milligrams or grams of cubic meters.

In the national standard, hydrogen sulfide in the air seems to be the maximum allowable concentration: 10ppm national standard "Occupational Exposure Limits for Hazardous Factors in the Workplace".

Part 1. Chemical Hazards (GBZ

2[1].1-2007).

The allowable concentration of chemicals in the air in the workplace is clearly stated.

The maximum allowable concentration of hydrogen sulfide is 10 mg m3. Carbon monoxide is about 50 ppm and can be exposed for 8 hours. The molecular weight of carbon monoxide is 28, and the density is approximately, so when converted to mg l, you can use the volume ppm value * which is 50* The molecular weight of hydrogen sulfide is 34, and the density is about 10*

Hope it solves your doubts o o

BW is Honeywell.

The company's products are manufactured in Honeywell's Mexico factory. The factory-set parameters are as follows: Oxygen underreported and carbon monoxide overreported.

Low reported 35ppm high 200ppm, hydrogen sulfide.

A low of 10ppm and a high of 15ppm. Gas-fired gas is reported at a low of 10% lel and high at 20% lel

In the national standard, hydrogen sulfide in the air seems to be the maximum allowable concentration: 10ppm national standard "Occupational exposure limits for hazardous factors in the workplace - Part 1 Chemical harmful factors" (GBZ 2[1].).1-2007) clearly states that the maximum allowable concentration of hydrogen sulfide is 10mg m3.

Carbon monoxide is about 50 ppm and can be exposed for 8 hours. The molecular weight of carbon monoxide is 28, and the density is approximately, so when converted to mg l, you can use the volume ppm value * which is 50 * The molecular weight of hydrogen sulfide is 34, and the density is about 10 * I hope to solve your question o o

Carbon monoxide and ferritin bind, inactivated, toxic.

1.Lethal concentrations for short-term exposure (15 min):

500 ppm (: minimum perceptible odor threshold.

700 ppm (: symptoms of headache, dizziness, nausea.

1,000 ppm (: rapid coma, airway obstruction, potentially fatal.

2.Safety limits for long-term exposure (8 hours):

10 ppm (: U.S. Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (PEL).)

It is important to emphasize that individual tolerances to hydrogen sulfide vary, so even below the above concentrations may cause discomfort or health effects in some people. In addition, other environmental factors such as gas mixtures, humidity, temperature, etc., can also affect the toxicity and mode of action of hydrogen sulfide.

When dealing with situations involving hydrogen sulfide, it is important to ensure that proper safety operating procedures and personal protective equipment are followed. If you suspect a hydrogen sulfide leak or have been exposed to hydrogen sulfide, leave the area immediately and contact the relevant emergency services. <>

Summary. The lethal concentration of hydrogen sulfide is usually around 1000 ppm (i.e., at high concentrations. However, values can be affected by factors such as the environment, the duration of exposure, and the health of the individual.

Therefore, it is important to be cautious when exposed to hydrogen sulfide or other toxic substances and try to avoid prolonged exposure to ensure safety.

The lethal concentration of hydrogen sulfide is usually around 1000 ppm (i.e., at high concentrations. However, the value of the number of grandchildren can be affected by factors such as the environment, the duration of exposure, and the health status of the individual. Therefore, when coming into contact with hydrogen sulfide or other toxic substances, please be cautious and try to avoid prolonged exposure to finger metal to ensure safety.

I'm still a little confused, can you be more detailed?

The lethal concentration of hydrogen sulfide is typically 1000 ppm (i.e., but the actual value is affected by factors such as environment, exposure time, and individual health. Therefore, caution should be exercised when exposed to toxic substances and prolonged exposure should be avoided as much as possible to ensure safety.