Gas Measurement

Gas Group in Chemical Metrology Section is responsible in ensuring gas analysis and gas measurement in the country is traceable to gas reference materials.

Gas Calibration

Gas Calibration Laboratory provides calibration of gas analyzers and gas detectors.  Multi-component gas mixtures are used to calibrate various types of these device.

   Commonly Monitored Gases   

     Measurement Range    


    Vehicle Emission Device    

    Measurement Standards    

Carbon Monoxide

Zero to 100 ppm


Carbon Monoxide

Zero to 4.5 %


Zero to 50 %LEL



Zero to 2000 ppm

Hydrogen Sulfide

Zero to 100 ppm



Zero to 21%


Calibration capability for gas detector


Calibration capability for vehicle emission devices 


Water Content in Gas Mixture

Gas Group in Chemical Metrology Section, NMIM is also capable of measuring low water content in gas mixtures. 


Gas Samples


Water @ Moisture

Almost all

(Contact us for further details)

0 to 1000 ppm

Water @ moisture

Oxygen, Hydrogen, Helium, Nitrogen, Air

0 to 10000 ppb


gm1Gas Analysis

Gas Analysis Laboratory is equipped with Gas Chromatograph with various type of  detectors; for example GC-FID, GC-TCD, GC-SCD, GC-ECD, GC-MS and GC-PDHID, which is an ideal tool to analyse gas samples and enabling our end users to determine the amount of different gaseous in a gas mixture.


NMIM plays an important role in disseminating the traceability of measurement to the whole country based on the International System of Units. Just like other world standard laboratories, NMIM has great responsibility in ensuring the national metrology infrastructures meet and comply with the global measurement standards.

Get In Touch

National Metrology Institute of Malaysia (NMIM)
Lot PT 4803, Bandar Baru Salak Tinggi
43900 Sepang
Selangor Darul Ehsan

Corporate inquiries: , 03-87781605                          

Service inquiries: , 03-87781604                               

Complaint and feedback:

Training course request:

WhatsApp: +6018–2121 833