GB5369-2008

Gerneral-specification for drinking water tank coating of shipbuilding

船用饮水舱涂料通用技术条件

GB 5369-2008 es una norma nacional china obligatoria vigente: Gerneral-specification for drinking water tank coating of shipbuilding. Sector: Electrónica. Enfoque: Seguridad de productos. Entrada en vigor: 1 dic 2009.

La aplicabilidad depende del alcance del producto, la vía de certificación, los avisos de la autoridad competente y las reglas de transición. Solicite una traducción o verifique la fuente antes de usar esta ficha en una decisión de cumplimiento.

Resumen de cumplimiento

Este resumen está disponible por ahora solo en inglés.

Alcance y aplicabilidad

This standard applies to coating systems applied to the inner surface of drinking water tanks on ships. It is specifically designed for the shipbuilding industry to ensure that coatings do not contaminate potable water. Compliance with this standard is mandatory for all marine drinking water tank coatings entering the Chinese market. It covers both physical-chemical properties and strict hygiene safety evaluations.

Requisitos técnicos

The standard specifies physical and chemical indicators including fineness, solid content, drying time, flexibility, adhesion, salt spray resistance, water resistance, and storage stability. These parameters ensure the durability and mechanical integrity of the coating system in marine environments. Furthermore, the standard establishes mandatory hygiene requirements to prevent water contamination. Coatings must undergo soaking tests to evaluate the release of heavy metals, organic compounds, and other potential pollutants. Manufacturers must ensure that soaked water meets strict limits for basic and additional testing items as defined in the normative appendix. Toxicological safety is also a critical requirement. The coating's soaked water must undergo toxicological tests, including acute oral toxicity (LD50), Ames test, and mammalian cell chromosome aberration tests. When new materials are used, manufacturers must determine leachable substances and their concentrations to ensure they do not exceed safety limits.

Métodos de ensayo

Testing methods involve evaluating physical properties according to referenced standards such as GB/T 1724 for fineness and GB/T 1725 for solid content. Hygiene requirements are tested through a 30-day soaking procedure using specific test water (pH 8, hardness 100mg/L, effective chlorine 2mg/L). The soaked water is then analyzed for various contaminants. Additionally, toxicological evaluations are conducted in four levels based on the concentration of leached substances, following the procedures outlined in the appendices.

Preguntas frecuentes

What products are regulated under GB 5369-2008?

GB 5369-2008 regulates coating systems applied to the inner surfaces of drinking water tanks on ships. It ensures these coatings meet both physical durability standards and strict hygiene requirements to prevent water contamination.

Are there any updates from the previous version of GB 5369-2008?

Yes, compared to GB 5369-1985, the 2008 version adds requirements for fineness, solid content, drying time, and storage stability. It also changes the water soaking time to 30 days and introduces mandatory toxicological tests, including Ames and mammalian cell chromosome aberration tests.

How are hygiene requirements evaluated under this standard?

Hygiene requirements are evaluated through a 30-day soaking test where the coating is exposed to specific test water. The water is then tested for heavy metals, organic compounds, and other pollutants. If new materials are used, additional toxicological evaluations are required to determine maximum allowable concentrations.

The summary above provides a high-level overview of GB 5369-2008. To ensure complete compliance for your marine coatings entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 5369-2008 today to access all detailed parameters, tables, and testing procedures.

Indicaciones de aplicabilidad

Tipo: Producto
CCS: G51
ICS: 87.040
Organismo competente: Ministry of Industry and Information Technology
Comité técnico: Ministry of Industry and Information Technology

Relaciones

Sustituye a:GB 5369-1985