Standard No.:	GB 4351-2023
English Name:	Portable fire extinguishers
Chinese Name:	手提式灭火器
Professional Classification:	GB    National Standard
ICS Classification:	13.220.10 13.220.10    Fire-fighting 13.220.10
Source Content Issued by:	SAMR; SAC
Issued on:	2023-12-28
Implemented on:	2025-1-1
Status:	valid
Superseding:	GB 4351.1-2005 Portable fire extinguishers—Part 1:Performance and construction GB 4351.2-2005 Portable fire extinguishers—Part 2:Requirements for seamless steel cylinders of portable carbon dioxide fire extinguishers GB/T 4351.3-2005 Portable fire extinguishers—Part 3:Regulations
Target Language:	English
File Format:	PDF
Word Count:	45360 words
Translation Price(USD):	1814.4
Delivery:	via email in 1~8 business day

GB4351-2023

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Classification and model 4.1 Classification 4.2 Types 5 Performance requirements for fire extinguishers 5.1 Service temperature range 5.2 Filling requirements 5.3 Discharging performance 5.4 Mechanical properties 5.5 Sealing performance 5.6 Corrosion resistance 5.7 Fire extinguishing performance 5.8 Electrical insulation performance 6 Performance requirements for components of an extinguisher 6.1 Cylinder 6.2 Fire extinguisher valve components 6.3 Safety device 6.4 Pressure gauge 6.5 Discharging hose 6.6 Filter screen for water-based fire extinguisher 6.7 Rubber seals 6.8 Plastic parts 6.9 Fixing frames 6.10 Extinguishing agents 6.11 Propellant 7 Test methods of fire extinguishers 7.1 Filling inspection 7.2 Discharging performance test 7.3 Mechanical performance test 7.4 Sealing performance test 7.5 Corrosion resistance test 7.6 Fire extinguishing performance test 7.7 Electrical insulation performance test 8 Test methods of components of an extinguisher 8.1 Test of cylinder 8.2 Test of fire extinguisher valve components 8.3 Test of safety device 8.4 Test of pressure gauge 8.5 Test of discharging hose 8.6 Test of filter screen for water-based fire extinguisher 8.7 Test of rubber seals 8.8 Test of plastic parts 8.9 Test of fixing frames 8.10 Test of extinguishing agents 8.11 Test of propellant 9 Colors and marks 9.1 Colors 9.2 Marking 10 Instructions 10.1 Operating instructions 10.2 Maintenance instructions 11 Inspection rules 11.1 Inspection classification and items 11.2 Sampling 11.3 Judgment of inspection results 12 Packaging, transportation and storage 12.1 Packaging 12.2 Transportation 12.3 Storage Annex A (Normative) Characteristic parameters, steel impression mark information and cylinder valve component torque of seamless cylinders of carbon dioxide fire extinguishers Annex B (Normative) Low pressure cylinders of portable fire extinguishers Annex C (Normative) Valves of portable fire extinguishers Annex D (Normative) Pressure gauge Annex E (Informative) Vibration and impact test devices for powder fire extinguishers Annex F (Informative) Class D fire test methods