Detail of CJ/T 28-2013

Introduction of CJ/T 28-2013

1 Scope This Standard specifies the terms and definitions, classification and model, structure and materials, requirements, test methods, inspection rules, marking, warning and operating instructions as well as packaging, transportation and storage of Chinese cooking gas appliances, with city gas as the fuel. This Standard is applicable to Chinese cooking gas appliances that the rated heat load of each burner is not greater than 60kW (hereinafter referred to as "gas appliances"). The city gas referred in this Standard is the gas in accordance with GB/T 13611. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated reference, the latest edition of the normative document (including any amendments) applies. GB/T 191 Packaging - Pictorial Marking for Handling of Goods GB/T l527 Drawn Tube of Copper and Copper Alloys GB/T 2828.2 Sampling Procedures for Inspection by Attributes - Part 2: Sampling Plans Indexed by Limiting Quality (LQ) for Isolated Lot Inspection GB/T 3091 Welded Steel Pipes for Low Pressure Liquid Delivery GB/T 3280 Cold Rolled Stainless Steel Plate Sheet and Strip GB/T 3287 Malleable Cast Iron Pipe Fittings GB/T 3768 Acoustics - Determination of Sound Power Levels of Noise Sources Using Sound Pressure - Survey Method Using an Enveloping Measurement Surface over a Reflecting Plane GB 4706.1 Household and Similar Electrical Appliances- Safety - Part 1: General Requirements GB/T 7306 (All Parts) Pipe Threads with 55 Degree Thread Angle Where Pressure-tight Joints Are Made on the Threads GB/T 7307 Pipe Threads with 55 degree Thread Angle Where Pressure-tight Joints Are Not Made on the Threads GB/T 8163 Seamless Steel Tubes for Liquid Service GB/T 8464 Cast Iron and Copper Valves with Screwed Connections GB 9684 National Food Safety Standard - Stainless Steel Products GB/T 9969 General Principles for Preparation of Instructions for Use of Industrial Products GB/T 11170 Stainless steel - Determination of Multi-element Contents - Spark Discharge Atomic Emission Spectrometric Method (Routine Method) GB/T 12771 Welded Stainless Steel Pipes for Liquid Delivery GB/T 13306 Plates GB/T 13611 Classification and Essential Property of City Gas GB 16410-2007 Domestic Gas Cooking Appliances GB/T 16411 Universal Test Methods of Gas Burning Appliances for Domestic Use GB 16914-2003 General Safety Technique Conditions of Gas Burning Appliances GB/T 17219 Standard for Safety Evaluation of Equipment and Protective Materials in Drinking Water System GB 18145 Ceramic Cartridge Faucets GB/T 21873 Rubber Seals - Joint Rings for Water Supply Drainage and Sewerage Pipelines - Specification for Materials GB/T 26002 Stainless Steel Pliable Corrugated Tubing and Fittings Used in Gas Piping Systems GB/T 26120 Pipework - Stainless Steel Threaded Fittings GB/T 50680-2012 Standard for Basic Terms of City Gas Engineering CJ/T 180 Manually Operated Gas Valves for Use in House CJ/T 346 Automatic Shut-off Valves for Gas-burning Appliances CJ/T 392-2012 Commercial Gas Oven for Cooking HG 2486 Household Gas Hose 3 Terms and Definitions For the purpose of this document, the following terms and definitions apply. 3.1 Chinese cooking gas appliances The air required for the burning of the gas is taken from indoors and the flue gas after burning is exhausted outdoors via the exhaust hood on the cooking appliances, axial fan or flue on the external wall, which are applicable to the gas appliances for Chinese cooking. [GB/T 50680-2012, Definition 10.2.39] 3.2 Primary flue One section of continuous flue on the body structure of the gas appliances, which may be directly connected to the flue of the external exhaust system for flue gas exhaust; and the flue gas exhaust may also be realized via the central exhaust system. 3.3 Cold state The state that the gas appliances are ignited normally under the conditions of reference gas and rated pressure, and stop operating after the gas supply gets normal until the burner cools close to ambient temperature. [CJ/T 392-2012, Definition 3.3] 3.4 Tail pan The pan that is installed at the gas appliances, and utilizes residual heat of the flue gas from the main burner to cook food or provide hot water. 3.5 Effective heat load The heat that is absorbed and utilized by the heating substance in unit time. 4 Classification and Model 4.1 Classification 4.1.1 According to types of the gas used: manufactured gas appliances (R), natural gas appliances (T) and liquefied petroleum gas appliances (Y). 4.1.2 According to air supply modes of the gas appliances: blast (G) and non-blast (F). 4.1.3 According to number of the burners of the gas appliances: one-burner gas appliances (1), two-burner gas appliances (2) and multi-burner gas appliances (n, the number of burners).

Contents of CJ/T 28-2013

Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 Classification and Model 5 Structure and Materials 6 Requirements 7 Test Methods 8 Inspection Rules 9 Marking, Warning and Operating Instructions 10 Packaging, Transportation and Storage Appendix A (Informative) Relation between the Effective Heat Load and the Furnace Aperture Appendix B (Informative) Clauses of this Standard Addressing Basic Requirements of GB 16914-2003