Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full -- Part 1: General principles and requirements— 40 стр.
Natural gas. Determination of composition with defined uncertainty by gas chromatography. Part 6. Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns— 21 стр.
Stationary source emissions. Sampling for the automated determination of gas emission concentrations for permanently-installed monitoring systems— 34 стр.