2 Normative References
The following normative documents contain provision which，through reference in this text，constitute provisions of this Part.Subsequent amendments（excluding correction to）to，or revisions of，any of these publications do not apply.However，parties to agreements based on this Part are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.For undated references，the latest editions of the normative documents are applicable to this part.
GB/T 2624.1-2006 Measurement of Fluid Flow by Means of Pressure Differential Devices Inserted in Circular Cross-section Conduits Running Full-Part 1：General Principles and Requirements
GB/T 2624.2-2006 Measurement of Fluid Flow by Means of Pressure Differential Devices Inserted in Circular Cross-section Conduits Running Full-Part 2：Orifice Plates
GB/T 2624.3-2006 Measurement of Fluid Flow by Means of Pressure Differential Devices Inserted in Circular Cross-section Conduits Running Full-Part 3：Nozzles and Venturi Nozzles
GB/T 2624.4-2006 Measurement of Fluid Flow by Means of Pressure Differential Devices Inserted in Circular Cross-section Conduits Running Full-Part 4：Venturi Tubes
GB/T 2887 Specification for Electronic Computer Field
GB/T 3733.1 24°Cone Connectors-Straight Thread
GB 4830 Pressure Range and Quality of Air Supply for the Industrial Process Measurement and Control Instruments
GB/T 5625-5653 Flared Couplings-Straight Thread
GB/T 8624 Classification on Hurning Behaviour for Building Materials
GB/T 9261-1999 Electrical Capacitance Level Meter
GB/T 12666Test Method on Electric Wires or Cables Under Fire Conditions
GB/T 13399-1992 Specification For Steam Turbine Safety Monitoring Devices
GB/T 13969-1992 Displacement Type Level Instruments
GB/T 15414-1994 Generic Specification for Furnace High-temperature Television System
GB/T 15415-1994 Methods of Measurement for Rurnace High-temperature Television System
GB/T 15479-1995 Technical Requirements and Test Methods of Insulation Resistance and Insulating Strength for Use in Industrial Process Measurement and Control Instruments
GB/T 50166 Code for Installation and Acceptance of Fire Alarm System
GB 50168-2006 Code for Construction and Acceptance of Cable System Electric Equipment Installation Engineering
GB 50257 Code for Construction and Acceptance of Electric Device for Explosion Atmospheres and Fire Hazard Electrical Equipment Installation Engineering
GB/T 50375-2006 Evaluating Standard for Excellent Quality of Building Engineering
DL/T 641-2005 Motor-driven Valve Actuators for Power Plant
DL/T 665 The Acceptance Standard of Water and Steam Integrated Sampling and Online Analyzing Unit
DL/T 677-1999 Checking and Calibration Code for On-line Chemical Analysis Instrument of Fossil Fuel Power Plant
DL/T 855-2004 The Code for Maintenance and Safekeeping of Thermal Power Equipment in Electric Power Construction
DL/T 869-2004 The Code of the Welding for Power Plant
DL 5009.1 Code of Safety Operation in Power Engineering Construction Part 1：Steam Power Plants
DL 5011-1992 The Code of Erection and Acceptance of Electric Power Construction-Part of Steam Turbine Unit
DL 5027 Specification for Fire Protection of Electric Power Installation
DL/T 5035 Technical Code for Heating Ventilation and Air Conditioning Design of Fossil Fuel Power Plant
DL/T 5047-1995 The Code of Election and Acceptance for Power Plant Construction-Part of Boiler Unit
DL 5053 Design Code of Labor Safety and Industrial Hygiene for Fossil Fuel Power Plants
DL/T 5190.5-2004 The Code of Election and Acceptance for Power Plant Construction-Part 5：Thermal Automation
CECS 31 Design Specifications for Steel Cable Bridge Engineering
CECS 81 Technical Specification on Interference Resistance of Monitor System for Industrial Computer
CECS 87 Technical Specification on Wiring Works of Flexible Metallic Wire Conduit
JJG 74 Verification Regulation of Selfbalance Display Instruments
JJG 535-2004 Verification Regulation of Zirconia Oxygen Analyzers
JJG 617-1996 Verification Regulation of Digital Temperature Indicators and Controllers