Product Range

Calibration Gas Mixture

Calibration Gas Standards

For Petrochemical and Refinery Lab & Process

Chemtron Science Labs offers a complete line of Calibration gas and liquid standards from a single source allowing you to save time and money by consolidating vendors and centralizing responsibility


Petro-Refinery Calibration Gas Production Brief Process
  • Before manufacturing speciality gas standards, requested components are first evaluated for potential phase problems using advanced computer modelling
  • We evaluate component compatibility based on the requested Speciality gas Mixtures
  • Next, Each Cylinder goes through proprietary cylinder passivation & Conditioning processes
  • Then Standards are precisely blended to exacting specifications on highly sensitive gravimetric scales traceable to NPL-UK
  • Finally, it undergoes advanced analysis using state-of-the-art analyzers to confirm the blended values designed to meet your need within the timeline you establish

Refinery Lab Calibration Gases
Most common Calibration Gas standards Used in Central Lab in Refineries
  • Calibration Gas Standard for Methaniser Gas Chromatography:
    CO/CO2/Methane Balance Hydrogen
  • Calibration Gas Standard for LPG Gas Chromatography:
    Ethane/ Propane/ Butanes/ Pentanes mix in % and other Hydrocarbons as per Demand
  • Calibration Gas Standard for Refinery Gas Analyzer (RGA):
    % or ppm of methane, Acetylenes, Ethane, Ethylene, Propane, Propylene, Butanes, Butylenes and its isomers, pentanes, pentenes, Nitrogen, Argon/Oxygen, Hydrogen, Carbon Monoxide, Carbon dioxide, 1,3 Butadiene, propadiene and other hydrocarbons as per requirement
  • Natural Gas Standard:
    Ethane, Propane, Butanes, Pentanes, Hexane, Heptane, Octane, Nonane, and other higher alkanes as required, nitrogen, Carbon dioxide, Helium, Aromatics balance Methane
  • Fuel Gas Plants (Method 11 Hydrogen Sulfide Mixtures):
    Hydrogen Sulphide in ppm Balance Helium or Nitrogen or Hydrogen
  • Sulphur Species Blend:
    H2S, COS, Various Mercaptans, Dimethyl Sulphide, Ethyl Methyl Sulphide, Thiophene, Diethyl Sulphide, Dimethyl Disulphide Balance in Helium


Calibration Gas & Liquid Standards

For Petrochemical Process


Polymer Plants
Propylene Calibration Gas Standards
  • PPM & % Hydrogen. Methane, Ethane. Ethylene, Propane, Butane, lsobutane, Propadtene, Methyl Acetylene & Cyclopropane
  • PPM & PPB Carbon Monoxide & Carbon Dioxide
  • PPM & PPB Hydrogen Sulfide. Carbonyl Sulfide & Methyl Mercaptan
Ethylene Calibration Gas Standards
  • GPA Natural Gas Standards
  • PPM & PPB Carbon Monoxide & Carbon Dioxide
  • PPM Methane, Ethane & Acetylene
Sulphur Calibration Gas Standards
  • Fuel Gas Plants {Method 11 H2S mixtures)
  • Miscellaneous (PPB & PPM Hydrogen Sulfide, Carbonyl Sulfide, Sulfur Dioxide, Methyl Mercaptan, Ethyl Mercaptan, Thiophene, Carbon Disulfide & Dimethyl Disulfide)
Liquid Calibration Gas Mixtures
Aromatics
  • Benzene (PPM non-aromatics, Toluene
  • Ethylbenzene, Xylene)
  • Parad1ethyl Benzene
  • Ethylbenzene (PPM Toluene, Benzene)
  • Toluene (PPM Ethylbenzene, Xylene)
  • Xylene (PPM Benzene. Toluene, Propylbenzene)
  • 1,3 Butadiene Impurities Profile
  • 1-Butene lmpunt1es Profile
  • LPG liquid Standards
  • C4/C5s liquid Standards
Natural Gas Standards
Pipeline Calibration Gas
  • Calonmetric Natural Gas Standards
  • GPA Natural Gas Standards
  • Natural Gas Standards for Daniel Instruments
  • Exploration/Mud logging Instrument Mixtures (Cl · C6)
Natural Gas Processing
  • Ethane Standards
  • Propane Standards
  • Butane Standards
Butadiene & 1-butene Plants
  • PPM & % Methane, Ethane. Ethylene, Propane, Propylene, 1,2-Butane, Ethyl Acetylene, Vinyl Acetylene, c,s-2 Butene, Trans-2-Butene, lsobutylene. 1 ·Butene & Vinyl Cyclohexene

Blend Tolerence and Certification Accuracy
SN Conc. Range Blend Tol Certi. Accu
2 1% and Above +/-5% +/- 2%
2 100 ppm to 1% +/- 10% +/- 2%
3 10 ppm to 100 ppm +/- 20% +/- 2%
4 2 ppm to 10 ppm +/- 30% +/- 3%

Blend Tolerence and Certificate will vary according to gas types and Concentrations of each component.


Pressure Regulators for Calibration Gases and Carrier Gases
Double Stage Stainless Steel
Pressue Regulator
  • Inlet Pressure Range : 0- 280 Kg/Cm2
  • Outlet Control Range: 0 - 15 Kg/Cm2
  • MOC: SS316 Cv : 0.06
  • Flow Rate : 0 - 300 LPM
  • Digphragm : SS/ PTFE Lined
  • Part no: CSL-DSS-280-15
Double Stage Brass
Pressure Regulator
  • Inlet Pressure Range : 0- 280 Kg/Cm2
  • Outlet Control Range: 0 - 15 Kg/Cm2
  • MOC: Brass - Chrome Plated
  • Flow Rate : 0 - 300 LPM
  • Digphragm : SS/ PTFE Lined
  • Part no: CSL-DSB-280-15
Portable Cylinder &
Regulator
  • 900 Gms in Weight
  • Water Capacity - 0.5 Liter
  • Gas Content : 60 liters @ 120 kg/cm2 Pressure used for 4 - 5 Calibrations, depend upon composition

Gas Standards Environmental Calibration Gas Standards

Typical Application of Certified Calibration Gas in CEMS


Most Common Components used
  • AMMONIA (NH3)
  • CARBON DIOXIDE (CO)
  • HYDROGEN SULFIDE* (H2S)
  • METHANE* (CH4)
  • NITRIC OXIDE* (NO)
  • CARBON MONOXIDE* (CO)
  • OXYGEN (O2)
  • PROPANE (C3H8)
  • SULFUR DIOXIDE* (SO2)
  • VARIOUS MERCAPTANS
  • BTEX
  • 55 to 60 Hydrocarbon components for Ozone Precursor Gas Std
Typical Certified Calibration Gas Standards
  • 5 to 2000 PPM of NO, CO, SO2 each in Nitrogen
  • 5 to 2000 PPM of NOx, CO, SO2, O2, Methane/propane each and 10 to 50 % CO2 in Nitrogen
  • 5 to 2000 PPM of Benzene, Toluene, xylene & its isomers in Nitrogen
  • O2, CO and CO % in Nitrogen
  • PPB levels of NO, SO2, Methane , BTEX each in Nitrogen
  • Other customized Calibration Gas Blends

Traceability Standards
  • To meet customer and regulatory requirements for analytically
  • Traceable calibration mixtures, Chemtron offers Standards, which are analytically certified directly against NIST SRMs with accuracy of +/-2%, within a comprehensive quality system
Cylinder Package

Chemtron offers wide range of speciality Gas equipment including Pressure regulator designed especially for Speciality Gas Mixtures We recommend to use Double Stage SS 316 Pressure regulator for above gases


SN W/C MOC Max W/P Gas Vol. Valve
Liters Kg/Cm2 /Psi Liters  
1 47 Steel 150/2175 7000 BS4/BS3
2 10 Aluminum 140/2030 1400 BS4/BS3
3 10 Steel 150/2175 1500 BS4/BS3
4 3 Steel 120/1740 360 BS4/BS3
5 3 Aluminium 120/1740 360 BS4/BS3
6 0.5 Aluminium 120/1740 60 C10
* On Demand CGA and DIN Valve can be supplied