1.1 This practice describes the procedure for obtaining a sample of pressurized gas for gas analysis from a system or component.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for informa This practice describes the procedure for obtaining a sample of pressurized gas for gas analysis from a system or component. A sample pressure vessel shall be evacuated and sealed with a minimum vacuum pressure. The vessel shall then be attached to the