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Gas Analysis

​​​Welcome to the Gas Analysis section of NMISA

Since the inception in 1997 to date, the section has grown tremendously with the most dedicated, experienced and expert team members of scientists in the field of gas analysis in South Africa. We produce an extensive range of primary reference gas mixtures through a chain of direct comparisons to our National Measurements Standards (NMS). These are used to underpin highly accurate measurements of ambient air quality, natural gas, industrial emissions, stack emission, vehicle and aircraft emissions, odour measurement, medical gases and occupational exposure.

The Kyoto Protocol is an international agreement linked to the United Nations Framework Convention on Climate Change. In view of several developments, national measurement standards for air pollution monitoring are becoming increasingly important for South Africa. The National Air Quality Act No. 39 of 2004, which closely monitors emissions from businesses, came into full effect on 1 April 2010. In March 2010, the South African Air Quality Information System (SAAQIS) was launched by the Department of Environmental Affairs (DEA). The NMISA has been identified as the ideal facility to host the National Reference Laboratory (NRL) for air quality management for SAAQIS. It is necessary to monitor air quality for health, the environment, for trade and tourism. Therefore, NMISA gas analysis laboratory plays a vital role in South Africa. The gas analysis section mainly focuses on purity analysis of high pure gases, developing high accuracy gas standards by static, and dynamic gravimetric generation methods and verification of gas mixtures to support various sectors.​