A1-A2 Alarm Values

The level at which an alarm sounds due to a hazardous concentration of gases or vapors, requiring immediate action.

The concentration of a flammable gas or vapor in air that, if ignited, will cause a flash fire or explosion.

A colorless, odorless, and toxic gas that can be fatal even in small concentrations.

A highly toxic gas with a distinctive rotten egg smell that can cause respiratory problems and death.

A group of 12 volatile organic compounds (VOCs) detected by a specific sensor used in the workplace.

A1 alarm is triggered when the oxygen concentration drops below 19.5%, indicating a hazardous oxygen deficiency.

A2 alarm is triggered when the oxygen concentration exceeds 23.5%, indicating an oxygen-rich environment.

Oxygen levels below 19.5% are considered deficient, posing a risk of suffocation.

Oxygen levels above 23.5% are considered enriched, potentially leading to fire hazards or health risks.

The concentration of methane in air that would cause a flash fire or explosion if ignited.

An alarm triggered when the methane concentration in the air reaches 10%.

An alarm triggered when the methane concentration in the air reaches 20%.

The concentration of methane in air that triggers the A1 alarm.

A hazardous level of carbon monoxide in the air, triggering an immediate action.

Indicates a higher concentration of carbon monoxide, necessitating prompt evacuation or other safety measures.

The concentration of carbon monoxide in the air that triggers an alarm, signaling potential health risks.

35ppm, the limit at which an alarm is triggered, highlighting the need for immediate action to avoid potential health issues.

50ppm, a higher level of CO that triggers an alarm, indicating a more serious situation and requiring swift response.

Hydrogen sulfide (H2S) is a colorless gas with a rotten egg smell that can be highly toxic. This gas is a significant hazard in industrial settings and requires immediate action to avoid detrimental health effects.

The A1 alarm for hydrogen sulfide (H2S) is triggered when the concentration of this gas reaches 10 parts per million (ppm). This alarm indicates a potentially hazardous situation, and immediate action is required to reduce exposure.

The A2 alarm for hydrogen sulfide (H2S) is triggered when the concentration reaches 15 ppm. This level represents a higher risk than the A1 alarm value and requires rapid action to mitigate the potential hazards.

The A1 alarm for hydrogen sulfide (H2S) is triggered when the concentration reaches 10 parts per million (ppm). This alarm indicates a potentially hazardous situation, and immediate action is required to reduce exposure.

The A2 alarm for hydrogen sulfide (H2S) is triggered when the concentration reaches 15 ppm. This level represents a higher risk than the A1 alarm value and requires rapid action to mitigate the potential hazards.

The concentration of organic vapors in the air that triggers an alarm, indicating a potential hazard.

The concentration of organic vapors in the air that triggers a higher level alarm, requiring immediate action.

A group of 12 volatile organic compounds (VOCs) commonly found in workplaces, which are detected by specific sensors.

These sensors are designed to detect specific volatile organic compounds (VOCs) that are commonly found in the workplace.

The alarm levels for organic vapors are set to protect workers from potential health risks associated with exposure to volatile organic compounds.