Standards

DZ 2.2-1987 Replaced

DZ 2.2-1987 Diamond enlarger for geological drilling

Publish Date: 1987-09-12

DZ 48-1987 Replaced

DZ 48-1987 Organic Carbon Analysis in Rocks Methodology

Publish Date: 1987-05-23

DZ 49-1987 Replaced

DZ 49-1987 The analysis methods for organic extracts in rocks and sediments

Publish Date: 1987-05-23

DZ 50-1987 Replaced

DZ 50-1987 Analysis Methods for Crude Oil and Organic Extract Compound Groups

Publish Date: 1987-05-23

DZ 51-1987 Replaced

DZ 51-1987 Saturated hydrocarbon gas phase chromatography analysis

Publish Date: 1987-05-23

DZ 52-1987 Replaced

DZ 52-1987 The method for separating kerogen from rocks

Publish Date: 1987-05-23

DZ 53-1987 Replaced

DZ 53-1987 The determination method for the reflectivity of the vitrinite group in disseminated organic matter of sedimentary rocks

Publish Date: 1987-05-23

DZ 47-1987 Replaced

DZ 47-1987 Petroleum seismic exploration technical specification

Publish Date: 1987-04-14

DZ 45-1987 Replaced

DZ 45-1987 Technical specifications for stand-axle geological core drilling rigs

Publish Date: 1987-02-14

DZ 44-1986 Replaced

DZ 44-1986 Hydraulic Geological Investigation Code for Urban and Industrial Mining Water Supply

Publish Date: 1986-08-23

DZ 1.4-1986 Replaced

DZ 1.4-1986 Geological core drilling pipe thread gauges

Publish Date: 1986-08-21

DZ 1.5-1986 Replaced

DZ 1.5-1986 The method for inspecting the threaded connection of geological core drilling pipe

Publish Date: 1986-08-21