This document refers to the C-21 and earlier EcoSensors VOC Instruments
Replacement sensors for the C-21 are available from Gas Sensing for $50. Please contact us for ordering information.
The Eco Sensors C-21 responds to most reducing VOCs, but not with the same degree of response for each VOC. The response is essentially logarithmic. For the first half of the scale (to about the 2nd yellow bar), the response is approximately linear. After that, it gets sharply logarithmic (much more c...
Aeroqual Portable Monitors Calibrations FAQ
This technical information on this page is relevant for the Handheld Series-200, 300, 500, and Fixed Mount Series-900, 930, 940. For information on the SM-70 and SM-50 scroll to the bottom of this page.
1. What do I calibrate - the monitor or the sensor head?
Aeroqual’s unique system of interchangeable sensor heads means they can be calibrated independently of the monitor. If you are sending a sensor head to us for f...
Volatile Organic Compound (VOC):
What is VOC:
Volatile Organic Compounds, more commonly known as VOC's consist of a wide variety of organic compounds that are vapor at room temperature. Many different gasses may make up VOC's, and some of those gasses may also be associated with other families of gasses. A complete list of VOC's can be found at the bottom of this page.
Health Risks of VOC's:
VOC's can cause respiratory, allergic, or immune effects...
Perchloroethylene(PERC):
Perchloroethylene Safety and Detection information
Overview:
Other Names:
PERC, PCE, perchlorethylene, tetrachloroethylene, tetrachlorethylene
Chemical Formula:
C 2 Cl 4
CAS Number:
127-18-4
Industry Uses:
Dry Cleaning, Metal Degreasing, Chemical Manufacturing
Health Risks:
Carcinogen, Irritant, Adverse nervous system reactions
...
Hydrogen Sulfide:
Other Names
Hydrosulfuric Acid; Sulfane; Dihydrogen Monosulfide
Chemical Formula
H 2 S
CAS Number
7783 – 06 – 4
Industry Uses
Chemical Laboratories; Metallurgy
Health Risks
Irritation of eyes and mucous membranes; Convulsions; Headaches, Dizziness
Vapor Pressure
...
Aceton e
Other Names
2-Propanone, Propanone, Dimethyl Ketone
Chemical Formula
C 3 H 6 O, (CH 3 ) 2 CO
CAS Number
67-64-1
Industry Uses
Cleaner, Cosmetics, Paint, Sealants and Adhesives, Chemical Solvent
Health Risks
Serious Eye Irritation, May cause drowsiness or dizziness, Skin drying possibly leading to dermatitis
Vapor Pressure
180 mmHg
Water Solubility
Miscib...
Acetylene
Other Names
Ethyne
Chemical Formula
C 2 H 2
CAS Number
74-86-2
Industry Uses
Fuel, Welding, Portable Lighting,
Health Risks
Can contain toxic impurities; Can cause headache, dizziness, and in extreme cases, loss of consciousness; Frostbite
Vapor Pressure
44.2 atm
Water Solubilit...
Glutaraldehyde:
Other Names
Glutaral; Pentanedial; Cidex
Chemical Formula
C 5 H 8 O 2
CAS Number
111-30-8
Industry Uses
Disinfectant; Water Treatment; Fixative and Embalming Fluid;
Health Risks
Irritation of eyes, skin, and respiratory system; Dizziness and Headaches;
Vapor Pressure
17 mmHg ...
Non-Methane Hydrocarbons:
What are NMHCs:
Non-Methane Volatile Organic Compounds (NMVOCs) are a large variety of chemically different compounds such as benzene, ethanol, formaldehyde, cyclohexane, and acetone. NMVOCs are essentially identical to VOCs , with the exlusion of methane. An important subset of NMVOCs are NMHCs. NMHCs are trace atmospheric components that provide a sink for hydroxyl radicals and control ozone concentration. Exmples of NMHCs are ethane, ethene, propane, pro...
