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  •  China "YD" Standards List:
    • Standard  Code Standard English Title Standard Class Order
    YD/T 16572-2007 Technical requirement for proxy equipment supporting multimedia service network address translation/fire wall crossing (NAT/FW) Part 2: SIP proxy

    China Telecommunication - YD Standards
    YD/T L634-2007 Optical transport network (OTN) physical layer interface

    China Telecommunication - YD Standards
    YD/T 163L-2007 Virtual concatenations and links of synchronous digital hierarchy (SDH)

    China Telecommunication - YD Standards
    DL/T 583-2006 Specification for static commutated excitation systems and devices for large and medium hydraulic generators

    China Electricity & Power - YD Standards
    DL/T 489-2006 Test regulation for static rectified excitation systems and devices for large and medium hydraulic generators

    China Electricity & Power - YD Standards
    DL/T 5353-2006 Design specification for slope of hydropwer and water conservancy project

    China Electricity & Power - YD Standards
    DL/T 5351-2006 Drawing standard of geologic for hydropower and water resources project

    China Electricity & Power - YD Standards
    DL/T 5350-2006 Drawing standard of electrical engineering for hydropower and water resources project

    China Electricity & Power - YD Standards
    DL/T 5349-2006 Drawing standard for hydraulic machinery of hydropower and water conservancy project

    China Electricity & Power - YD Standards
    DL/T 5348-2006 Drawing standard for hydraulic structure of hydropower and water conservancy project

    China Electricity & Power - YD Standards
    DL/T 5347-2006 Drawing standard for base of hydropower and water conservancy project

    China Electricity & Power - YD Standards
    DL/T 5345-2006 Design specification for centralized monitoring and control projects of valley hydropower plants

    China Electricity & Power - YD Standards
    DL/T 1013-2006 Test and adjustment guide of microcomputer-based excitation regulator for large and medium hydraulic generators

    China Electricity & Power - YD Standards
    DL/T 1003-2006 The measurement of lubricating parameters for thrust bearing of hydro-generator unit

    China Electricity & Power - YD Standards
    HG/T 3882-2006 Glycine ethylester hydrochloride

    China Chemical Industry - YD Standards
    HG/T 3881-2006 Analysis methods for mixed aqueous catalyst of Cobalt acetate, Manganese acetate and Hydrobromic acid

    China Chemical Industry - YD Standards
    HG/T 3875-2006 Phenol aldehyde amine epoxy resin firming agent

    China Chemical Industry - YD Standards
    HG/T 3825-2006 Sodium hydroxide produced from natural soda by causticizing process

    China Chemical Industry - YD Standards
    HG/T 3821-2006 Nano-powder of magnesium hydroxide

    China Chemical Industry - YD Standards
    HG/T 3819-2006 Nano-synthetic hydrotalcite

    China Chemical Industry - YD Standards
    DL/T 996-2006 Specification of steam turbine electro-hydraulic control system in fossil fuel power plant

    China Electricity & Power - YD Standards
    DL/T 5034-2006 Technical code for the hydrogeological investigation of electric power engineering

    China Electricity & Power - YD Standards
    DL/T 502.3-2006 Analytical methods of steam and water in power plants. Part 3: Determination of total sillicon (Spectrometric method by conversion with hydrofluoric acid)

    China Electricity & Power - YD Standards
    DL/T 502.18-2006 Analytical methods of steam and water in power plants. Part 18: Determination of hydrazine (Indirect method)

    China Electricity & Power - YD Standards
    DL/T 502.17-2006 Analytical methods of steam and water in power plants. Part 17: Determination of hydrazine (Direct method)

    China Electricity & Power - YD Standards
    DL/T 502.14-2006 Analytical methods of steam and water in power plants. Part 14: Determination of copper (Spectrometric method using dicyclohexanoneoxalyldihydrazone)

    China Electricity & Power - YD Standards
    DL/T 5339-2006 Code for hydraulic design of fossil fuel power plants

    China Electricity & Power - YD Standards
    DL/T 5338-2006 Technical code of karst engineering geological investigation for hydropower and water resources project

    China Electricity & Power - YD Standards
    DL/T 5337-2006 Technical code for engineering geological investigation of slope for hydropower and water resources project

    China Electricity & Power - YD Standards
    DL/T 5336-2006 Technical code of reservoir area engineering geological investigation for hydropower and water resources project

    China Electricity & Power - YD Standards

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