GB12441-2018

Finishing fire resistant coating

饰面型防火涂料

GB 12441-2018 est une norme nationale chinoise obligatoire en vigueur : Finishing fire resistant coating. Secteur : Chimie. Thème principal : Sécurité des produits. Entrée en vigueur : 1 sept. 2018.

L’applicabilité dépend du périmètre du produit, de la voie de certification, des avis des autorités et des règles de transition. Demandez une traduction ou vérifiez la source avant d’utiliser cette fiche pour une décision de conformité.

Aperçu de conformité

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Champ d’application

This standard applies to all types of finishing fire resistant coatings used on combustible substrates such as wood, fiberboard, and paperboard. It covers coatings that provide decorative finishes and expand to form an insulating layer when exposed to fire. Manufacturers of both water-based and solvent-based fireproof coatings must comply with this standard. It is not applicable to structural fireproofing materials or intumescent coatings for steel.

Exigences techniques

GB 12441-2018 specifies comprehensive technical requirements for finishing fire resistant coatings, categorized into physical, chemical, and fire performance parameters. The standard mandates specific limits for in-container state, fineness, drying time, adhesion, flexibility, and impact resistance. Additionally, it sets strict criteria for water resistance and moisture and heat resistance to ensure durability in various environmental conditions. The core fire performance requirements include fire resistance time, difficult flammability, mass loss, and char volume. These parameters are critical for evaluating the coating's ability to protect combustible substrates. Compliance with the mandatory clauses regarding technical specifications and inspection rules is essential for market access. The standard also classifies products by dispersion medium into water-based (S) and solvent-based (R) types, each with specific packaging and storage requirements. GB/T 9750 is referenced for packaging marks, ensuring proper identification and safe transportation.

Méthodes d’essai

The standard outlines specific testing methodologies to verify compliance. Physical and chemical properties are tested using methods referenced from GB/T 1720, GB/T 1728, and GB/T 1731, among others. Fire performance is evaluated using the large board burning method (Appendix A) to determine fire resistance time, and the small chamber burning method (Appendix B) to measure mass loss and char volume. Furthermore, the difficult flammability test is conducted according to GB/T 8625. Manufacturers must ensure their products undergo these rigorous tests to meet the mandatory inspection rules.

Questions fréquentes

What products are regulated under GB 12441-2018?

GB 12441-2018 regulates finishing fire resistant coatings applied to combustible substrates like wood and fiberboard. This includes both water-based and solvent-based coatings that expand to form an insulating layer when exposed to fire.

Are there any mandatory clauses in GB 12441-2018?

Yes, clauses 5.2 (technical requirements), 8.1 (marking), and Chapter 7 (inspection rules) are mandatory. Compliance with these sections is legally required for products sold in the Chinese market.

How does GB 12441-2018 differ from the 2005 version?

The 2018 version introduces product classification and model numbering. It also modifies some physical and chemical performance indicators, replaces the tunnel burning method with the difficult flammability test (referencing GB/T 8625), and updates the inspection rules.

The summary above provides a high-level overview of GB 12441-2018. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 12441-2018 today to access all detailed parameters, tables, and testing procedures.

Indications d’applicabilité

Type: Produit
CCS: C82
ICS: 13.220.20
Autorité compétente: National Fire and Rescue Administration
Comité technique: National Technical Committee on Fire Protection of Standardization Administration of China

Relations

Remplace:GB 12441-2005