Method and apparatus for field fluid sampling and dissolved gas analysis

Kit for analyzing gases dissolved in a sample fluid comprising:

• a disposable sample vial having an open end, a self-sealing stopper inserted into said open end to seal the vial, a crimp cap applied to the stopper and vial to maintain the seal on the vial,
• a coupler for slidably receiving the vial and securing the vial within the coupler, the coupler having a support, for a needle, with a septum to help eliminate the leakage of air into the vial, a spring assembly included with the coupler for assisting the coupler in disengaging an adaptor,
• the adapter including a hollow needle which follows the support in the coupler and penetrates the stopper for introducing sample fluid from fluid-filled electrical equipment into said vial whereby dissolved gases are captured in the vial for analysis,
• the spring assembly assists in removing the needle from the vial once the dissolved gases are captured.