| Prest-O-Sales
& Service, Inc. offers a comprehensive, high-quality product
line of pure instrument and process gases, cryogens,
supercritical extraction materials, and high accuracy traceable
gaseous and liquid calibration mixtures.
Our
products are complemented by an extensive range of gas handling
equipment that include regulators,
manifolds, blending systems, delivery systems and safety products
supported by a broad range of related services.
We
serve a wide range of customers from universities and research
laboratories to industry sectors such as biotechnology, electronics,
environmental, manufacturing, petrochemical, pharmaceutical, and
utilities.
Our
highly trained team of field sales representative, customer service,
and technical service personnel can provide the guidance and support
you need to help you resolve regulatory, technical and safety
issues.
Pure
Gases
As
analytical instrument manufacturers continue to push the thresholds
of sensitivity and detection limits, so does Prest-O-Sales &
Service in producing and distributing application specific pure
gas grades that will meet these stringent specifications. Equally
important, we will help you deliver these critical purities to
your instrument applications by assisting with the associated
gas handling equipment for assured results.
Prest-O-Sales
& Service provides a full line of zero and support gases developed
to meet the stringent requirements of each specific environmental
application. We offer Continuous Emission Monitoring (CEM) zero
grade air and nitrogen; Vehicle Emission Zero (VEZ) grade air,
nitrogen and Volatile Organic Compound (VOC) free grade air, helium
and nitrogen.
Our
highly trained team of field sales representatives, technical
service personnel and production chemists provide the guidance
and support you need to resolve regulatory, technical and safety
issues.
Gas Mixtures
Prest-O-Sales & Service’s complete line of process control and laboratory gas mixtures meets the stringent requirements of each specific application, from culturing micro-organisms to the calibration and operation of analytical instruments. Mixtures can be packaged in a variety of containers, each designed to meet your specific needs. We have decades of knowledge and experience in supplying institutions and companies with high quality gas mixtures.
Our independently audited and certified laboratory uses high accuracy scales combined with state-of-the-art cylinder preparation techniques to ensure the most accurate and stable mixtures in the industry. We employ the most sensitive instrumentation and certified reference gases to accurately analyze all of the raw materials used in the manufacture of our mixed gases. This allows for the correction of any cross-contamination and ensures that our customers receive the most accurate mixtures possible.
We offer several grades of mixtures:
PRIMARY STANDARD GRADE – precisely blended mixtures using the most advanced gravimetric techniques, resulting in the highest accuracy of gas mixtures available. NIST traceable weights are used to calibrate the high precision scales.
CERTIFIED STANDARD – calibration gases are prepared using gravimetric or partial pressure methods. They are then analyzed against Primary Reference Standards, the results of which are reported on the Certificate of Analysis (COA).
CUSTOM MIXTURES – process gas standards that are prepared in the same fashion, and to the same specifications as the Certified Standards, but the analysis is not reported. The requested composition is reported on the label.
Mixture Specifications


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