Environmental regulations require accurate, traceable low concentration organic gas calibration standards to calibrate instruments used in:
- • Ambient air monitoring
- • Infiltration studies
- • Measurement of incinerator emissions
- • Measurement of fugitive emissions from chemical processing equipment
- • Measurement of industrial stationary sources
- • Measurement of landfill gases
Spectra offers a four (4) component, BTEX Standard -1, a six (6) component, BTEX Standard – 2, and a seven (7) component, BTEX Standard – 3, calibration standards in concentrations from 100 ppb to 10 ppm in a balance gas of VOC zero grade nitrogen (N2). All concentrations are directly traceable to NIST gravimetrically and analytically by comparison with NIST certified standards.
BTEX standards are available in a variety of cylinders; most common are the size 6A, 104 liters at 1800 psig and the 2A, 4000 liters at 2000 psig.
BTEX STANDARD – 1
Benzene [71-43-2]
Toluene [108-88-3]
Ethyl Benzene [100-41-4]
o-Xylene [95-47-6]
BTEX STANDARD – 2
BTEX STANDARD – 3
Benzene [71-43-2] m-Xylene [108-38-3]
Ethyl Benzene [100-41-4] o-Xylene [95-47-6]
Toluene [108-88-3] p-Xylene [106-42-3]
Benzene [71-43-2] m-Xylene [108-38-3]
Ethyl Benzene [100-41-4] -Xylene [95-47-6]
Toluene [108-88-3] p-Xylene [106-42-3]
Tert-butyl methyl ether (MTBE) [1634-04-4]
NOTE: CAS numbers are in square brackets, i.e. [00-00-0]
SPECIFICATIONS
Blend Tolerance:
Analytical Accuracy
Stability
100 ppb to 1 ppm +/- 10%
> 1 ppm to 10 ppm +/- 5%
100 ppb to 1 ppm +/- 5%
> 1 ppm to 10 ppm +/- 2%
12 months
Please contact Spectra Environmental Division for information on other concentrations, tolerances, and cylinder sizes.