This standard specifies the specifications, requirements, test methods, inspection rules and marking, packaging, transportation and storage requirements for drilling fluid density meters (hereinafter referred to as instruments). This standard applies to the manufacturing, inspection and quality evaluation of instruments.
SY/T 5381-2008 history
2013SY/T 5377-2013 Specifications for drilling fluid testing instruments
2008SY/T 5381-2008 Technical specifications of driling fluid balance for density
1991SY/T 5381-1991 Specifications for Drilling Fluid Density Meter
SY/T 5381-2008 Technical specifications of driling fluid balance for density was changed to SY/T 5377-2013 Specifications for drilling fluid testing instruments.