T/CNFPIA 1005-2024 Limitations on harmful substances in adhesive and additives used in manufactured wood products without formaldehyde

Scope

Scope: This document specifies the terms and definitions, technical requirements, testing methods, inspection rules, and labeling for formaldehyde-free adhesives and additives used in wood-based panels. This document applies to formaldehyde-free adhesives and additives used in wood-based panel manufacturing. Main technical content: 4.1 Limitations on free formaldehyde content: The limit for free formaldehyde content is 0.020 g/kg. 4.2 Limitations on free phenol content: The limit for free phenol content is 0.1%. 4.3 Limitations on benzene-related compounds content: The limit for benzene-related compounds content shall comply with the requirements of Table 1. Table 1: Limitations on benzene-related compounds content for formaldehyde-free adhesives and additives Free formaldehyde (g/kg) ≤ 0.1 Toluene + xylene (g/kg) ≤ 4 4.4 Limitations on total volatile organic compounds content: The limit for total volatile organic compounds content shall comply with the requirements of Table 2. Table 2: Limitations on total volatile organic compounds content for formaldehyde-free adhesives and additives Total volatile organic compounds (g/L) ≤ 50 4.5 Limitations on heavy metal content: The limit for heavy metal content shall comply with the requirements of Table 3. Table 3: Limitations on heavy metal content for formaldehyde-free adhesives and additives Total lead (Pb) content (mg/kg) ≤ 2 Cadmium (Cd) content (mg/kg) ≤ 5 Mercury (Hg) content (mg/kg) ≤ 5 Chromium (Cr) content (mg/kg) ≤ 5 Total organic tin compounds content (mg/kg): - Monomethyl tin (MMT) - Dipropyl tin (DProT) - Monobutyl tin (MBT) - Dibutyl tin (DBT) - Tributyl tin (TBT) - Tetrabutyl tin (TTBT) - Monooctyl tin (MOT) - Dioctyl tin (DOT) - Diphenyl tin (DPhT) - Triphenyl tin (TPhT) Total organic tin compounds ≤ 0.2 mg/kg Any single organic tin compound ≤ 0.02 mg/kg 5.1 Determination of free formaldehyde content: Follow the provisions of Appendix A of GB 18

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