Matheson and the Environment Special gas mixtures for environmental compliance, emissions monitoring, safety and industrial hygiene. Backed by Matheson's more than 65 years of experience. The 1990 revision of the Clean Air Act places increasing restrictions on the discharge of pollutants into the atmosphere and demands more proof of compliance. Penalties for noncompliance will increase. Compliance requires verification by accepted analytical procedures. Analytical data is acceptable only if instrumentation is calibrated with reliable standards. Questionable quality of calibration mixtures is intolerable. Accuracy and consistency must be assumed and verified. Matheson, the world leader in specialty gases, has successfully prepared accurate calibration gas mixtures of every variety for over 65 years. With greater emphasis on pollution abatement and more demanding compliance requirements, analytical reliability becomes increasingly critical. Matheson's experience is your guarantee that the calibration mixture you receive will meet the requirement. If you are involved with compliance testing, air quality monitoring or industrial hygiene - insist on reliability and consistency. Insist on Matheson.
Matheson ® Gas Products
World Leader in Specialty Gases & Equipment
30 Seaview Drive, Secaucus, ΝJ 07096-1587
Calibration Gas Mixtures Available from Matheson EPA Protocol and NBS Traceable Calibration Mixtures in all Allowable Concentration Ranges POLLUTANT
BALANCE GAS
Carbon Dioxide Carbon Monoxide Hydrogen Sulfide Methane Nitric Oxide Nitrogen Oxide Oxygen Propane Sulfur Dioxide S0 2 /0 2 S02/NO
Nitrogen Nitrogen Nitrogen Nitrogen Nitrogen Nitrogen Nitrogen Nitrogen Nitrogen Nitrogen Nitrogen Nitrogen Nitrogen
so 2 /co 2
S02/NO/CO
or Air or Air or Air or Air or Air or Air or Air
Certified Calibration Gas Mixtures for Industrial Hygiene POLLUTANT
BALANCE GAS
Carbon Dioxide Carbon Monoxide Ethylene Oxide n-Hexane Hydrogen Hydrogen Sulfide Methane Nitric Oxide Oxygen Pentane Pentane and 0 2 Pentane, 0 2 and CO Propane
Air Air Nitrogen Air Air Nitrogen Air Nitrogen Nitrogen Air Nitrogen Nitrogen Air
CONCENTRATION RANGES
2000 ppm - 2.5% 20 - 4000 ppm 1 -100 ppm 500 ppm 0.8 - 2% 10 - 95 ppm 1-3% 5 - 30 ppm 5% 1000 ppm - 0.75% 0.75%/15% 0.75%/15%/60 ppm 0.5 -1.0%
Toxic Organic Mixtures (allowable combinations of the following components in Nitrogen in ppm or ppb concentrations) Acetone Acetonitrile Benzene Benzyl Chloride 1,3-Butadiene Carbon Tetrachloride Chlorobenzene Chloroform Dichlorobenzenes 1,1 -Dichloroethane 1,2-Dichloroethane
CIRCLE 72 ON READER SERVICE CARD
1146 A · ANALYTICAL CHEMISTRY, VOL. 64, NO. 24, DECEMBER 15, 1992
cis-l,2-Dichloroethylene 1,2-Dibromoethane Halocarbon 11 Methyl Ethyl Ketone Tetrachloroethylene Toluene 1,1,1-Trichloroethane o-Xylene Vinyl Chloride Vinylidene Chloride
