GB/T 17456.2-2025: Ductile iron pipes, fittings and accessories - External zinc-based coating - Part 2: Zinc rich paint with finishing layer

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Scope

This Document specifies the technical requirements and test methods for applying zinc-rich
paint coatings and finishing coatings to the outer surfaces of ductile iron pipes, fittings, and
accessories in the factory, as defined in GB/T 13295, GB/T 26081, and GB/T 43492.
This Document applies to zinc-rich paint coatings with finishing layers on the outer surfaces of
ductile iron pipes, fittings, and accessories.

Basic Data

Standard ID	GB/T 17456.2-2025 (GB/T17456.2-2025)
Description (Translated English)	Ductile iron pipes, fittings and accessories - External zinc-based coating - Part 2: Zinc rich paint with finishing layer
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H48
Classification of International Standard	23.040.10
Word Count Estimation	12,197
Date of Issue	2025-08-29
Date of Implementation	2026-03-01
Older Standard (superseded by this standard)	GB/T 17456.2-2010
Issuing agency(ies)	State Administration for Market Regulation; Standardization Administration of China