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GB/T 30789.8-2015
Paints and varnishes—Evaluation of degradation of coatings—Designation of quantity and size of defects ,and of intensity of uniform changes in appearance—Part 8: Assessment of degree of delamination and corrosion around a scribe or other artificial defect
GB/T 30789.7-2015
Paints and varnishes—Evaluation of degradation of coatings—Designation of quantity and size of defects,and of intensity of uniform changes in appearance—Part 7: Assessment of degree of chalking by velvet method
GB/T 30789.6-2015
Paints and varnishes—Evaluation of degradation of coatings—Designation of quantity and size of defects,and of intensity of uniform changes in appearance—Part 6: Assessment of degree of chalking by tape method
GB/T 30648.5-2015
Paints and varnishes—Determination of resistance to liquids—Part 5: Temperature-gradient oven methods
GB/T 30648.4-2015
Paints and varnishes—Determination of resistance to liquids—Part 4: Spotting methods
GB/T 30648.3-2015
Paints and varnishes—Determination of resistance to liquids—Part 3: Method using an absorbent medium
GB/T 30648.2-2015
Paints and varnishes—Determination of resistance to liquids—Part 2: Water immersion method
GB/T 29165.4-2015
Petroleum and natural gas industries—Glass-reinforced plastics(GRP) piping—Part 4: Fabrication, installation and operation
GB/T 23512-2015
Petroleum and natural gas industries—Evaluation and testing of thread compounds for use with casing, tubing, line pipe and drill stem elements
GB/T 17554.2-2015
Identification cards—Test methods—Part 2: Cards with magnetic stripes
GB/T 17421.5-2015
Test code for machine tools—Part 5：Determination of the noise emission
GB/T 13642-2015
Rubber, vulcanized or thermoplastic—Resistance to ozone cracking—Dynamic strain testing
GB/T 31520-2015
Determination of astaxanthin in Haematococcus—High performance liquid Chromatography method
GB/T 5449-2015
Determination of roga index of bituminous coal
GB/T 31424-2015
Determination of coal ash viscosity
GB/T 31423-2015
Guide for performance acceptance of oxygen bomb calorimeter
GB/T 31390-2015
Appraisal for view stone
GB/T 31457-2015
The testing and calculation methods for water balance in oil-gas field production system
GB/T 31456-2015
Technical specification for surface oil and gas geochemical exploration
GB/T 31453-2015
Monitoring and testing code for energy conservation of oilfield production system