Quality Standard for Hardboard Fiberboard
Hardboard is similar to fiberboard, except that hardboard is more dense thanfiberboard. … Hardboard/fiberboard manufacturing falls under the StandardIndustrial Classification (SIC) Code 2493, for “Reconstituted Wood Products”, which also includes oriented strandboard, medium density fiberboard, and particleboard.
1. Subject content and scope of application
2. Normative Reference Documents
Provisions in the following documents are incorporated into the standard by reference to this standard. All subsequent amendments (excluding errors) or revisions to date-referenced documents do not apply to this standard. The latest version of undated reference documents is applicable to this standard.
GB/T 11718 MDF
GB 18580 Indoor Decoration and Decoration Material Wood-based Panels and Their Products Formaldehyde Release Limits
3. Terms and definitions
It should comply with the relevant provisions of terms and definitions in GB/T 11718 and GB 18580.
4. Quality requirements
4.1 The surface should be sanded and the appearance quality meets the requirements of GB/T 11718.
4.3 Size deviation, density deviation and moisture content meet the requirements of GB/T 11718.
4.4 Physical and mechanical properties meet the requirements of GB/T 11718 medium-density fiberboard.
4.5 Formaldehyde emission limits:
5. The rules of sampling, measurement, inspection and judgment shall be implemented in accordance with the relevant requirements of GB/T 11718. The physical and chemical performance sampling shall be carried out in accordance with the requirements of quality supervision of the products that have passed the acceptance test.
6. Marking, packaging, transportation and storage shall be carried out in accordance with the requirements of GB/T 11718.
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