Standard No.:	GB 15308-2025
English Name:	Foam extinguishing agent
Chinese Name:	泡沫灭火剂
Professional Classification:	GB    National Standard
Source Content Issued by:	SAMR; SAC
Issued on:	2025-08-01
Implemented on:	2026-8-1
Status:	to be valid
Superseding:	GB 15308-2006 Foam extinguishing agent
Target Language:	English
File Format:	PDF
Word Count:	21500 words
Translation Price(USD):	645.0
Delivery:	via email in 1 business day

GB 15308-2025 Foam extinguishing agent English, Anglais, Englisch, Inglés, えいご 1 Scope This document defines the terms and definitions related to foam extinguishing agent, specifies the classification, code and model specification, requirements, inspection rules, as well as packaging, transportation, marking and storage, instructions for use, and describes the corresponding test methods. This document is applicable to the research and development, production, and inspection of foam extinguishing agents. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 6003.1 Test sieves - Technical requirements and testing - Part 1: Test sieves of metal wire cloth GB/T 6026 Acetone for industrial use GB/T 6682 Water for analytical laboratory use - Specification and test methods GB/T 9969 General principles for preparation of instructions for use of industrial products GB/T 21059 Plastics - Polymers/resins in the liquid state or as emulsions or dispersions - Determination of viscosity using a rotational viscometer with defined shear rate GB/T 30515 Petroleum products - Transparent and opaque liquids - Determination of kinematic viscosity and calculation of dynamic viscosity GB/T 36911 Guidelines for transport package 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 characteristic values physical and chemical performance values of foam concentrate and foam solution provided by the manufacturer 3.2 25% drainage time time required for drainage of the liquid equivalent to 25% of the foam mass from the foam 3.3 expansion ratio of the volume of foam to that of the foam solution from which it is made 3.4 low expansion foam concentrate foam concentrate with expansion of 1 to 20 times 3.5 medium expansion foam concentrate foam concentrate with expansion of 21 to 200 times 3.6 high expansion foam concentrate foam concentrate with expansion above 200 times 3.7 foam the collection of air-filled bubbles formed by a foam solution Note: It is also known as extinguishing foam. 3.8 foam concentrate concentrated liquid which can be mixed with water at an appropriate concentration to form foam solution Note: It is also known as foam concentrate liquid. 3.9 foam solution solution prepared with foam concentrate and water according to the specified concentration Note: It is also known as foam mixture. 3.10 protein foam concentrate foam concentrate prepared by partial hydrolysis of protein-containing raw materials 3.11 fluoroprotein foam concentrate protein foam concentrate added with fluorocarbon surfactant 3.12 synthetic foam concentrate foam concentrate prepared with the surfactant mixture and stabilizer as the base material 3.13 alcohol-resistant foam concentrate foam concentrate that can resist the destruction of the alcohol or other polar solvents to the produced foam when it is applied to their surface Note: It is also known as anti-solvent foam concentrate. 3.14 aqueous film-forming foam concentrate foam concentrate prepared with the hydrocarbon surfactant and fluorocarbon surfactant as the base material Note: It can form a water film on the surface of some hydrocarbons.

Contents Foreword ii 1 Scope 2 Normative references 3 Terms and definitions 4 Classification, code and model specification 4.1 Classification and code 4.2 Model specification 5 Requirements 5.1 General requirements 5.2 Technical requirements 6 Test methods 6.1 Sampling and temperature conditioning 6.2 Freezing point 6.3 Resistance to freezing and thawing 6.4 Sediment 6.5 Viscosity 6.6 pH 6.7 Surface tension, interfacial tension and spreading coefficient 6.8 Expansion and 25% drainage time of the low expansion foam concentrate 6.9 Expansion of medium/high expansion foam concentrate 6.10 Extinguishing performance 7 Inspection rules 7.1 Batch and lot 7.2 Sampling 7.3 End-of-manufacturing inspection 7.4 Type inspection 7.5 Judgment of inspection results 8 Packaging, transport, marking, storage, and instructions for use 8.1 Packaging and transport 8.2 Marking 8.3 Storage 8.4 Instructions for use Annex A (Informative) Small-scale fire extinguishing test for quality control of fire extinguishing performance A.1 General A.2 Fire extinguishing test Annex B (Informative) Packaging of foam concentrate B.1 Shape and volume of packaging containers B.2 Material and color of packaging containers