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GB/T 33435-2025 English PDF

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Q: Should I purchase the latest version GB/T 33435-2025?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 33435-2025 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$324.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 33435-2025: Small craft - Carbon monoxide (CO) detection systems and alarms
Status: Valid

GB/T 33435: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33435-2025	324	Add to Cart	4 days	Small craft - Carbon monoxide (CO) detection systems and alarms	Valid
GB/T 33435-2016	354	Add to Cart	3 days	Small craft -- Carbon monoxide (CO) detection systems	Valid

Similar standards

GB/T 18572 GB/T 19316 GB/T 20894

Basic data

Standard ID: GB/T 33435-2025 (GB/T33435-2025)
Description (Translated English): Small craft - Carbon monoxide (CO) detection systems and alarms
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: U37
Classification of International Standard: 47.080
Word Count Estimation: 16,141
Date of Issue: 2025-06-30
Date of Implementation: 2025-10-01
Older Standard (superseded by this standard): GB/T 33435-2016
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 33435-2025: Small craft - Carbon monoxide (CO) detection systems and alarms

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT33435-2025
ICS 47.080 CCSU37 National Standard of the People's Republic of China Replaces GB/T 33435-2016 Small boat carbon monoxide (CO) detection system and alarm (ISO 12133.2021, IDT) Released on June 30, 2025 Implementation on October 1, 2025 State Administration for Market Regulation The National Standardization Administration issued

Preface

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 33435-2016 "Small craft carbon monoxide (CO) detection system" and is different from GB/T 33435-2016 except In addition to structural adjustments and editorial changes, the main technical changes are as follows. --- Changed the definition (see Chapter 3, Chapter 3 of the.2016 edition); --- Added the requirement for alarm when the battery is low (see 5.1.5); --- Increased the operating temperature range requirements of the detector (see 5.2.3); --- Changed the requirements for the installation location (see 5.3.2, 5.3.2 of the.2016 edition); --- Changed the installation requirements for carbon monoxide detectors without self-contained batteries (see 5.3.3, 5.3.3 of the.2016 edition); --- Added requirements for replacement of markings (see 6.3); --- Changed the reference line of 30 mg/kg in Figure 1 (see Figure 1, Figure 1 of the.2016 edition). This document is equivalent to ISO 12133-2021 "Small craft carbon monoxide (CO) detection systems and alarms". Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the National Technical Committee for Standardization of Small Boats (SAC/TC241). This document was drafted by. China Shipbuilding Industry Corporation Comprehensive Technical and Economic Research Institute, China Shipbuilding Industry Corporation 708 Research Institute Institute, Jiangsu University of Science and Technology, Shanghai Jiao Tong University, Jiangsu Kuangbo Intelligent Technology Co., Ltd., and China Classification Society Shanghai Standards Research Institute. The main drafters of this document are. Li Qiaoping, Lao Yijia, Wang Cailian, Jiang Xiaowei, Yao Rulin, Yang Haitou, Zhang Jian, Pan Xiaobing, He Lin, Mao Zihao, Zheng Tao. The previous versions of this document and the documents it replaces are as follows. ---First published in.2016 as GB/T 33435-2016; ---This is the first revision. Small boat carbon monoxide (CO) detection system and alarm

1 Scope

This document specifies the design, construction and installation requirements for carbon monoxide (CO) detection systems and alarms for small craft. Appendix A to this document provides information on carbon monoxide relevant to boat and small craft navigation.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 18814-2024 Small craft electrical systems — AC and DC installations (ISO 13297.2020, IDT) sures(IPCode)]

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 carbon monoxide CO A gaseous compound consisting of one carbon molecule and one oxygen molecule. Note. In chemical formulas, C represents carbon and O represents oxygen. In this document, the concentration of carbon monoxide is expressed as the mass fraction of CO in air. 3.2 carboxyhemoglobin Carbon monoxide (3.1) combines with hemoglobin to form a stable compound. 3.3 The proportion of carboxyhemoglobin %COHb The degree to which the oxygen-carrying capacity of the blood is impaired due to the binding of carbon monoxide (3.1) to hemoglobin, expressed as a percentage. 3.4 Continuous spaces surrounded by permanent structures, including. a) designated accommodation; b) a galley area with a drain; c) A compartment with toilet and sewage. Note. Cabins with or without canvas covers used for store supplies and as open passenger cabins are not considered to be enclosed accommodation spaces. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 33435-2025_English be delivered?

Answer: Upon your order, we will start to translate GB/T 33435-2025_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/T 33435-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 33435-2025_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/T 33435-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 33435-2025 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.