Any SGS trade inspection nomination on oil, gas and chemical cargoes is always based on accepted core petroleum and petrochemical standards, such as UOP, GOST, API MPMS, ASTM, EN or IP test methods and specifications as set out by ISO, CEN or the various national and regional standards organizations. Analytical methods which have been supplied by clients or custom-built are also used when these form part of the specifications. Where necessary, we can help stakeholders select the most appropriate standards to cite and use to support risk management within a particular transaction (or series of transactions).