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 We handle over 80 different types of gases and liquid
chemicals to produce varieties of Gas / Liquid mixtures
to serve the ever increasing need of Industries and
Institutions.
The gas mixtures are made to any concentration within
the permissible limits of Physics and Chemistry. Which
are non-explosive, non-reactive, stable mixture of gases
in wide range of packaging.
Gravimetric filling uses ultra-high precision balances,
calibrated & traceable NPL body periodically to weigh each
component into the cylinder. This ensures that the
expected tolerance requirements are always fulfilled.
To achieve minimum Blend tolerance and to minimize
uncertainty we use
-
 High purity raw materials through Linde A.G. Technology
Plant .
- Properly prepared cylinders with good internal surface
- Sophisticated Equipments to handle ppb level mixtures
- Right blending methods
- Accurate Instruments and Accurate Standards
Our calibration mixtures are prepared and certified to
meet the most stringent metrological standards. Precise
manufacturing of calibration gas mixtures involves many
critical steps-
- Raw material purity
- Impurity characterization
- Calculation of phase behavior for the calibration gas
mixture
- Cylinder Preparation
- Precise blending
- Independent confirming analysis of the final
calibration gas mixture
- Traceability
Raw Material Analysis
Raw Materials are pre- analysed to ensure that the final
outcome of the gas mixture meets your specification for
purity, accuracy and stability. Balance gases for
mixtures are 99.999% (N5.0) or higher where appropriate.
Cylinder
Preparation
Cylinder selection will take into consideration the
chemical and physical properties of the gas mixture. For
reactive mixtures we will use specially prepared
cylinders and fitted with stainless steel valves in
order to guarantee the stability of your gas mixture. To
further minimise any chance for cross-contamination,
cylinders are only recycled for use with gas mixtures
within the same group classification
Production & Analysis
Mixture purity and composition is verified by analysis
and certification following a thorough homogenisation
process. To ensure that more complex and reactive
mixtures have been reliably achieved, these mixtures
will be analysed several times over a period of
days/weeks, as appropriate, in order to guarantee their
final stability and quality.
Traceability
Our analytical operations are traceable through a
calibration standard produced to either a recognized
international standard such as NIST or NPL or a
gravimetrically manufactured Primary Reference Standard
traceable to NPL standard masses.
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