Products


We work tirelessly to produce the most accurate and stable calibration gas mixtures.

All our balances and gauges are NATA calibrated and mother cylinders are verified against fully traceable NATA certified reference materials.


Various cylinder sizes are available for purchase.

700L (5L WC) and 2800L (20L WC) gas capacity for large size regular gas mixtures

116L (1.7L WC) gas capacity for standard calibration gas mixtures

58L (0.85L WC) and 34L (0.85L WC) gas capacity for small size regular gas mixtures

69L (1L WC) gas capacity for flammable gas mixtures


Our used cylinders recycle program is an environmentally-friendly way to reduce waste caused by empty cylinders.

We will collect all your empty Clear Gas cylinders for recycling free of charge in Melbourne or you could send back empty Clear Gas cylinders to us for further recycling.

You can purchase cylinders recycling tool from our shop if you decide to recycle at your site.


The list below is not exhaustive. Mixtures containing higher or lower concentrations may be available upon request.


Non Reactive GasesFormulaRange
Carbon MonoxideCO5ppm-100%
Carbon DioxideCO25ppm-100%
EthanolC2H5OH70ppm-300ppm
MethaneCH45ppm-100%
Nitrogen (5.0)N210ppm-100%
OxygenO2200ppm-23.5%
PropaneC3H810ppm-10%
HydrogenH2100ppm-100%
Refrigerant R-134ACF3CH2F100ppm-0.2%
iso-Butyleneiso-C4H810ppm-1%
HexaneC6H1450ppm-4000ppm
Sulfur HexafluorideSF610ppm-2%
PentaneC5H1210ppm-0.75%
BenzeneC6H65ppm-150ppm
iso-Butaneiso-C4H105ppm-10%
Non Reactive Gases
on Demand
FormulaRange
EthyleneCH210ppm-2.5%
TolueneC7H810ppm-200ppm
AcetyleneC2H2100ppm-1.25%
n-Butanen-C4H1010ppm-8%
Reactive GasesFormulaRange
Hydrogen SulphideH2S10ppm-250ppm
Nitric OxideNO10ppm-250ppm
Nitrogen DioxideNO25ppm-100ppm
Sulphure DioxideSO25ppm-250ppm
AmmoniaNH310ppm-500ppm
ChlorineCL22ppm-100ppm
Hydrogen ChlorideHCL10ppm-25ppm

Reactive Gases
on Demand
FormulaRange
PhosphinePH30.5ppm-5ppm
Ethylene OxideC2H4O5ppm-10ppm