What is a VOC analysis?
In an environmental analysis context, the VOC designation, or volatile organic contaminants, generally refers to the analysis of compounds in environmental samples with the following chemical properties:+ Low boiling points (below 200°C) Low vapor pressures. Low-to-medium water solubility.
How VOC is measured?
The two most commonly used methods for VOC statistical analysis are Flame Ionisation Detection and Photo Ionisation Detection. Both methods measure the number of chemicals in the air on the assumption that most organic vapors produce positively charged carbon ions when they combust(1).
How do you test for VOC in the air?
VOC testing can be performed in two main ways:
- The use of an onsite PID meter (photo-ionizing detector) for real-time total VOC levels (tVOCs)
- The use of sorbent tubes or air-capturing devices for lab analysis (usually GCMS) or summa canisters and regulators to target a wide variety of compounds by EPA method TO-15.
When should you test for VOCs?
Offices may need VOC testing after installing a 3D printer. Industrial facilities may want to test following a change in formulation or evaluate migration of VOCs from the manufacturing side of the building into the offices.
What is VOC meter?
PCE-VOC 1 is a portable handheld volatile organic compound (VOC) and formaldehyde (HCHO) meter or gas leak detector for indoor air quality (IAQ) monitoring applications.
What are the main sources of VOCs?
Sources of VOCs
- paints, paint strippers and other solvents.
- wood preservatives.
- aerosol sprays.
- cleansers and disinfectants.
- moth repellents and air fresheners.
- stored fuels and automotive products.
- hobby supplies.
- dry-cleaned clothing.
How much VOC is safe?
What is a safe level of VOCs? According to experts, a level of 0.3 to 0.5 mg/m3 is safe.