Analytical Pure Gases

Support gases for your analytical instrumentation

Analytical Pure Gases

Support gases for your analytical instrumentation
Air Liquide R&D teams worked with major analytical manufacturers to determine the recommended gas purity for their instrumentation. Our findings indicated that two basic ranges for gas purity are enough to ensure optimal performance in most applications.


Two grades to ensure your optimal performance


For the accuracy of analysis – ranging from % to ppm

ALPHAGAZ™ 1 pure gases exceed the purity recommendations of most laboratory instrument manufacturers, making them an obvious choice for all-around laboratory use. Providing guaranteed low impurity levels, ALPHAGAZ™ 1 products are ideal for most analytical and process control applications.


For the high accuracy of analysis – ranging from ppm to ppb

All ALPHAGAZ™ 2 pure gases exhibit very low impurity levels available in the industry, making them the best choice for laboratory, analytical and process control applications where uncompromised ultra high purity is needed. 

All our products are made to guarantee repeatability and traceability of your analyses.

ALPHAGAZ™  1 and ALPHAGAZ™  2 are available with the best supply modes ensuring safety, quality, consistency and simplicity of use.


Smart, Simple and Unique

An innovative and ergonomically designed product for laboratory and analysis applications. SMARTOP™ valve makes ALPHAGAZ™ pure gases easier and safer to use

On/off lever

• Easy opening
• Immediate gas cut-out
• On/off status at a glance

Ergonomic cap

• Easy handling of the cylinder
• Permanent, reliable protection for the valve

Permanent content gauge

• At a glance content monitoring
• Get a reading even when flow is stopped

RPV/NRV function

• Keep a minimal pressure in the cylinder
• No back-flow contamination during use and storing


View video SMARTOP™ for ALPHAGAZ™

View video ALPHAGAZ™

Air Liquide Expertise Center

High purity gases, mixtures and related equipment for Research & Analysis