GB 27897-2025 English PDF

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Q: Should I purchase the latest version GB 27897-2025?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB 27897-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$439.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 27897-2025: Class A foam extinguishing agent

GB 27897: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 27897-2025	439	Add to Cart	4 days	Class A foam extinguishing agent
GB 27897-2011	529	Add to Cart	4 days	Class A foam extinguishing agent	Valid

Basic data

Standard ID: GB 27897-2025 (GB27897-2025)
Description (Translated English): Class A foam extinguishing agent
Sector / Industry: National Standard
Classification of Chinese Standard: C84
Classification of International Standard: 13.220.10
Word Count Estimation: 22,254
Date of Issue: 2025-10-31
Date of Implementation: 2026-11-01
Older Standard (superseded by this standard): GB 27897-2011
Issuing agency(ies): State Administration for Market Regulation and Standardization Administration of China

GB 27897-2025: Class A foam extinguishing agent

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 13.220.10 CCSC84 National Standards of the People's Republic of China Replaces GB 27897-2011 Class A foam extinguishing agent Published on 2025-10-31 Implemented on 2026-11-01 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Preface III 1.Scope 1 2 Normative References 1 3.Terms and Definitions 1 Model 4 2 5 Requirements 2 5.1 General Requirements 2 5.2 Technical Requirements 2 6.Test Methods 3 6.1 Sampling and Temperature Treatment 3 6.2 Freezing point 4 6.3 Freeze-thaw resistance 4 6.4 Viscosity 5 6.5 pH 5 6.6 Corrosion Rate 6 6.7 Surface tension 7 6.8 Wettability 7 6.9 Foaming ratio and 25% separation time 9 6.10 Thermal insulation and protection performance 13 6.11 Class A fire extinguishing performance 13 7.Inspection Rule 15 7.1 Sampling 15 7.2 Factory inspection 15 7.3 Type Testing 15 7.4 Judgment of Test Results 15 8.Marking, Packaging, Transport and Storage 15 8.1 Mark 15 8.2 Packaging 16 8.3 Transportation and Storage 16 Appendix A (Normative) Standard Operating Procedures for Compressed Air Foam Systems 17 A.1 Instruments and Equipment 17 A.2 Operation Step 17

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document replaces GB 27897-2011 "Class A Foam Extinguishing Agents". Compared with GB 27897-2011, the main differences are structural adjustments and editorial changes. Aside from the changes, the main technical changes are as follows. a) The "MJABP" product model and its corresponding performance requirements and test methods have been removed from the "Product Category" (see page 4 of the.2011 edition). (Chapters 5.2.3, 5.2.4 and 6.11.7) b) Increased the upper limit requirements for "mixture ratio characteristic value for extinguishing Class A fires" and "mixture ratio characteristic value for thermal insulation" (see...). 5.1); c) The requirement and test method for "comparative fluidity" have been removed (see Tables 1 and 6.4 in the.2011 edition); d) Requirements and test methods for "viscosity" have been added (see Tables 1 and 6.4); e) The requirements for "pH" have been changed (see Table 1,.2011 edition); f) The requirement for "nonconformity type" has been removed (see Tables 1, 2, and 3 in the.2011 edition); g) The test method for “freezing point” has been changed (see 6.2,.2011 edition of 6.2). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the State Fire and Rescue Administration. This document was first published in.2011, and this is its first revision. Class A foam extinguishing agent

1 Scope

This document specifies the product models, technical requirements, test methods, inspection rules, marking, packaging, and transportation of Class A foam fire extinguishing agents. store. This document applies to the research, development, production, and testing of Class A foam fire extinguishing agents.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document. GB/T 2909-2025 Natural Cotton Canvas GB 4351-2023 Hand-held fire extinguishers GB/T 6003.1-2022 Technical requirements and inspection of test sieves - Part 1.Metal wire woven mesh test sieves GB/T 6682 Specifications and test methods for water used in analytical laboratories GB/T 11983 Determination of the wetting power of surfactants - Immersion method GB/T 21059 Viscosity of polymers/resins in liquid, emulsion, or dispersion systems at specified shear rates using a rotational viscometer Degree measurement

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Foam extinguishing agent used for extinguishing Class A fires and for heat insulation protection. 3.2 eigenvalue The physical and chemical performance parameters of foam liquid and foam solution provided by the manufacturer. 3.3 foam concentrate A concentrated liquid that is mixed with water at a suitable concentration to form a foam solution. 3.4 foam solution A solution prepared by mixing foaming liquid and water at a specified concentration. 3.5 25% precipitation time The time required for 25% of the liquid by mass to be extracted from the foam. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB 27897-2025_English be delivered?

Answer: Upon your order, we will start to translate GB 27897-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB 27897-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB 27897-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB 27897-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB 27897-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.