1.1 This method of sampling covers the procedures for the sampling of natural gas, containing different gases as contaminants such as: (f ) natural gases containing primarily hydrocarbons and nitrogen, (2) nhural gases containing hydrogen sulfide, or organic sulfur compounds, or other sulfur contaminants, (3) natural gas containing carbon uioxide, ( 4 ) natural gas containing gasoline and condensables. These are treated separately and special precautions stated when necessary. The differences in procedures are mainly in degree, rather than in kind.
1.2 This method of sampling is intended to correlate the size or type of sample with the analysis to be run subsequentìj on that sample.
1.3 The values stated in inch-pound units are to be regarded as the standard.