ISO/TS 16922 gives the guidelines for the methods and odorants to be used in the odorization of natural gas.

ISO/TS 16922 also specifies the general requirements for odorants, the physical and chemical properties of commonly used sulfur-containing odorants, the principles for the determination of odour intensity, the odorization technique (including handling and storage of odorants) and the control of odorization of natural gas.