Hydrogen Sulfide (H2S) is found in many natural gas fields throughout the world. Measurement and the determination of the concentration of H2S is critical for many reasons. From Personal Safety to Corrosion Control and eventually to Contractual Obligation, the measurement of H2S is a critical in the Pipeline Industry. This paper will discuss the Properties, Purpose of Measurement, Measurement Techniques, Calibration, and other Sulfur measurements that maybe required by the Pipeline Industry