JIS S 3021:2017

Introduction1 Scope2 Normative references3 Classification 3.1 Classification according to burning systems 3.2 Classification according to draft systems 3.3 Classification according to systems to use divisions 3.4 Classification according to water supply systems 3.5 Classification according to heating systems 3.6 Classification according to circulation systems of bath boiler path4 Performance 4.1 Usability 4.2 General quality performance 4.3 Quality performance as equipment for water service5 Construction 5.1 General construction 5.2 Construction of boilers according to burning systems 5.3 Construction of boilers according to draft systems 5.4 Construction of boilers according to water supply systems 5.5 Construction of oil tank 5.6 Construction of electrical equipment, wiring parts 5.7 Construction of safety device 5.8 Construction of boil-dry safety mechanism6 Materials7 Processing method8 Appearance 8.1 Appearance 8.2 Rust prevention9 Exhaust terminal and supply exhaust tube 9.1 Exhaust terminal 9.2 Supply and exhaust tube10 Test methods 10.1 Test methods in general 10.2 Withstand pressure performance test 10.3 Low temperature resistance performance test 10.4 Water hammer critical performance test 10.5 Backflow prevention performance test 10.6 Negative pressure breaking performance test 10.7 Leaching performance test11 Inspection 11.1 Type inspection 11.2 Product inspection12 Marking 12.1 Marking of ratings 12.2 Indication of handling instructions 12.3 Indication on cock, knob, etc. 12.4 Indication of switches for ignition and extinction, or operation and stoppage 12.5 Indication of fuel level indicator 12.6 Indication on oil tank 12.7 Indication on water piping connection part 12.8 Indication of pressure reducing valve and relief valve to be used 12.9 Indication of terminal for earthing 12.10 Indication of passing type inspection13 Instruction manual