T/CNFPIA 3021-2022 Dipped paper-laminated solid wood composite flooring

Scope

Scope: This document specifies the terms and definitions, classification, requirements, test methods, inspection rules, and marking, packaging, transportation, and storage for impregnated paper laminated solid wood composite flooring. This document applies to impregnated paper laminated solid wood composite flooring; Main technical content: 4. Classification 4.1 By surface moulding shape a) Flat type; b) Non-flat type. 4.2 By substrate structure a) Plywood substrate; b) High-density fiberboard-laminated plywood substrate. 4.3 By wear resistance grade a) Wear resistance Grade I; b) Wear resistance Grade II; c) Wear resistance Grade III. 4.4 By suitability for floor radiant heating a) Not suitable for floor heating; b) Suitable for floor heating. 5. Requirements 5.1 Grading The impregnated paper laminated solid wood composite flooring can be divided into superior and qualified products according to their appearance quality. T/CNFPIA 3021—2022 35.2 Appearance quality The appearance quality of the impregnated paper laminated solid wood composite flooring shall comply with Table 1. Table 1 Requirements for the appearance quality of impregnated paper laminated solid wood composite flooring Defect Front Back Superior Qualified Dry and wet stains Not allowed Total area not exceeding 3% of the board surface When the back is single-ply board, it shall comply with the requirements of Table 1 of GB/T 18103—2013 for the appearance quality of the back. When the back is balanced paper, it shall comply with the requirements of Table 2 of GB/T 18102—2020 for the appearance quality of the back. Surface scratches Not allowed Surface indentations Not allowed Transparent through Not allowed Obvious Not allowed Gloss mismatch Not allowed Color mismatch Not allowed ≤10mm2, allowed 1/block Bubbling Not allowed Blistering Not allowed Paper tearing Not allowed Local paper missing Not allo

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