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This is 9 r epor t of t he analysis of a standard sample of natural gas by 30 laboratories cooperatin g with Subcommi ttee VII of Commi ttee D3 of the American Society for T estin g Materials. The data are presen ted in a series of frequency distribu tion plots that show at a glance how t he analyses from all laboratories compare with respect to each component determined, as well as calculated heating value and specific gravity. The h'eatin g value and specific gravi ty determin ed by analysis are compared with valu es carefu ll y measured at the National Bureau of Standards. The analyses were perform ed volumetri cally by t he absorption and combustion methods, and the plots form a clear picture of th is type of gas analys is in this country. Although some very credi table work is reported, t he need for standardization is evident.

Analysis of a standard sample of natural gas by laboratories cooperating with the American Society for Testing Materials