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Database: 189759 (26 Oct 2025)
CB/T 4558-2025 English PDF
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Standard Title (Description)
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CB/T 4558-2025
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(J type flange cast iron liquid flow observer)
Valid
CB/T 4558-2025
Basic data
Standard ID
CB/T 4558-2025 (CB/T4558-2025)
Description (Translated English)
(J type flange cast iron liquid flow 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Older Standard (superseded by this standard)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 1039-1981
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 flange cast iron flow viewers. This standard applies to the design, manufacture and acceptance of viewers for ship piping systems
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