Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Standard No. Title Price(USD) Delivery Status Add to Cart
NB/T 11429-2023 Technical specifications for coal mine TBM installation $345.00 via email in 1~5 business day valid
NB/T 11430-2023 Technical requirements for TBM excavation in coal mine $190.00 via email in 1~3 business day valid
NB/T 11432-2023 Technical specification for coal mine gangue-based solid waste filling $255.00 via email in 1~3 business day valid
NB/T 11433-2023 Technical specification for short wall interval filling mining in coal mine $290.00 via email in 1~5 business day valid
NB/T 11434.1-2023 Paste filling in coal mine - Part 1: Technical requirements of goaf isolation in fully mechanized mining face $255.00 via email in 1~3 business day valid
NB/T 11434.2-2023 Paste filling in coal mine - Part 2: General technical conditions of pipe valves $345.00 via email in 1~5 business day valid
NB/T 11434.3-2023 Paste filling in coal mine - Part 3: Effect evaluation method $190.00 via email in 1~3 business day valid
NB/T 11434.5-2023 Paste filling in coal mine - Part 5: Technical requirements for cementitious materials $345.00 via email in 1~5 business day valid
NB/T 11440-2023 Estimation specifications of coal reserves in production mine $255.00 via email in 1~3 business day valid
NB/T 11442-2023 Specification for preparation of feasibility study report of coalbed methane gas field development $420.00 via email in 1~5 business day valid
NB/T 11444-2023 Mobile full-hydraulic drilling rig $345.00 via email in 1~5 business day valid
NB/T 11446-2023 Technical requirements of mining roadway by roadway with continuous backfilling in coal mine $345.00 via email in 1~5 business day valid
NB/T 11454-2023 Specification for risk management of freezing sinking method $1020.00 via email in 1~5 business day valid
NB/T 11467-2023 Technical specification for expanding hole and increasing pressure relief gas in surface drilling $165.00 via email in 1~3 business day valid
NB/T 51044-2015 Inspecting-testing specification of main technical indexes for coal mine using gas drainage system $250.00 via email in 1~3 business day valid
NB/T 51045-2015 Technical specifications for fully bolt-grouting support $110.00 via email in 1~3 business day valid
SY 5522-1992 Analysis identification method for microfossil (ostracoda, pleopod and charophyta) $180.00 via email in 1~3 business day superseded
SY/T 5128-1997 General requirements for jet perforators for oil and gas wells $690.00 via email in 1~3 business day abolished
SY/T 5132-1997 Quality requirement for original log information $900.00 via email in 1~5 business day valid
SY/T 5332-1997 Technical specifications for land 2-D seismic exploration data processing $370.00 via email in 1~3 business day abolished
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