Development states of ISO/TC 193 in 2011

This article introduces the organization structure, constitute of work groups, international standards issued and the 23rd plenary meeting of ISO/TC 193. Emphasis focuses on detailed illustration and discussion of natural gas quality specification, analysis and measurement technology development of work group directly under TC/193, SC1 Natural Gas Analysis, SC3 Upstream in 2011. The next work proposals of natural gas quality specification, analysis and measurement standardization developed for adopting standard and international standardization in China were also put forward.