For service Dial: 626.339.3070

                           UP Detection Services proudly serves nationwide, no matter where you are, you can count on UP


Toxic gas, defined by

Common Toxic Gases:

Toxic Gases:

UP toxic gas detection systems monitor and warn you of possible air pollutions. Toxic gas is a substance that is gaseous form and that is defined as toxic or highly toxic in Title 29 of the Code of Federal Regulations, Section 1910.1200. [SEMI F1-90]. Toxic Gases are code regulated in every state and can be identified  as gas with a median lethal concentration (LC50) in air of more than 200 ppm (as by California), but not more than 2000 ppm by volume of gas or vapor, when administered by continuous inhalation for one hour.

Toxic gas leaks pose  potentially dangerous scenarios in many industries, including vehicle exhaust, chemical, oil/gas, electric utilities, agricultural, pharmaceutical, manufacturing, and waste treatment. Gases and vapors released from oil, gas and petrochemical processing activities can have harmful effects on personnel exposed to them by inhalation,  skin absorption, or swallowed. Personnel exposed to toxic gases may even develop illnesses many years after the first exposure. Many toxic substances are dangerous to our health in low PPM* (parts per million) or even PPB (part per billion) concentrations. Leak sources typically include pipelines, valves, tanks, burners, freezers, separators, flare systems, aeration ponds and other equipment. The dangers of toxic gases may cause severe injury or may even be fatal. In many of these industries exposure to toxic gas is extremely possible due to processes or operations. As a result, it is absolutely necessary to take a proactive approach to toxic gas monitoring that provides an intelligent, integrated solution that is reliable, flexible, simple to implement and economical.

UP offers fixed gas monitoring systems to protect personnel wherever toxic gas is used, stored, or created.  Your specific monitoring system needs are fully unique and designed specifically upon consultation to fit your building characteristics and business needs. Our systems are not a one size fits all. Furthermore if your business is in continuous long-term operations or outside of an exhausted enclosure, or if a gas has poor warning properties (e.g. detection by the sense of smell is threshold greater than the PEL) then your gas monitoring equipment must be able to detect concentrations at or below the PEL** or ceiling limit. Toxic gas releases are considered health threatening and should always be reported and treated with the utmost seriousness and concern for the safety of your personnel, the community, and yourself.

UP ensures that all toxic gas detection systems are maintained and sensors calibrated at a frequency recommended by the manufacturer.  As a safety precaution periodic calibration or demonstrations that the monitor is working properly is necessary for ongoing protection accuracy and quality. IF you have a current system that you would like inspected, serviced, or updated to ensure maximum quality and performance please contact us 1.626.216.6450.


*PPM – One ppm is equivalent to 1 milligram of something per liter of water (mg/l) or 1 milligram of something per kilogram soil (mg/kg).

**PEL – Permissible Exposure Limit as defined by Cal/OSHA.  The maximum concentration of an airborne contaminant to which a worker may be exposed when averaged for an 8-hour shift. 

hydrogen bromide 
hydrogen chloride 
hydrogen cyanide 
hydrogen fluoride 
hydrogen selenide 
hydrogen sulfide 
methyl bromide
methyl mercaptan  
nitric oxide 
nitrogen dioxide 
phosphorous pentafluoride 
phosphorous trichloride 
phosphorous trifluoride
selenium hexafluoride 
silicon tetrafluoride 
stibene (SbH3) 
sulfur tetrafluoride 
sulfuryl fluoride 
tungsten hexafluoride 
vinyl chloride

arsenic pentafluoride 
boron trichloride 
boron trifluoride 
bromine pentafluoride 
carbon monoxide
carbonyl fluoride
carbonyl sulfide 
chlorine dioxide
chlorine pentafluoride
chlorine trifluoride
chloromethyl methyl ether 
cyanogen chloride 
dinitrogen tetroxide
ethylene oxide   
germane (GeH4)
germanium tetrafluoride

Toxic Detection Systems