This standard specifies the public safety distance for hydrogen sulfide-containing natural gas purification plants. This standard applies to the site selection and safety planning of new purification plants with a hydrogen sulfide content in natural gas of 13% to 15% (volume fraction).
SY/T 6781-2010 history
2017SY/T 6277-2017 Specifications for Personal Protection in Hydrogen Sulfide Environment
2010SY/T 6781-2010 Standard of public safety distance for natural gas processing plants involving high hydrogen sulfide
SY/T 6781-2010 Standard of public safety distance for natural gas processing plants involving high hydrogen sulfide was changed to SY/T 6277-2017 Specifications for Personal Protection in Hydrogen Sulfide Environment.