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Database: 189759 (26 Oct 2025)
CB/T 4561-2025 English PDF
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Standard Title (Description)
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CB/T 4561-2025
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(J type marine cylindrical observer)
Valid
CB/T 4561-2025
Basic data
Standard ID
CB/T 4561-2025 (CB/T4561-2025)
Description (Translated English)
(J type marine cylindrical observer)
Sector / Industry
Shipping Industry Standard (Recommended)
Classification of Chinese Standard
U55
Classification of International Standard
47.020.30
Date of Issue
2025-04-10
Date of Implementation
2025-11-01
Older Standard (superseded by this standard)
CBM 1105-1982
Issuing agency(ies)
Ministry of Industry and Information Technology of the People's Republic of China
Summary
This standard specifies the classification and marking, requirements, test methods, inspection rules, marking, packaging and storage of J-type marine cylindrical sight glasses. This standard is applicable to overflow Design, manufacture and acceptance of cylindrical viewer for pipeline water and oil medium
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