歐盟CE認證標準EN 312《刨花板 - 規格》

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標準編號 Standard/Code	標準名稱 Standard Title
EN 312	Particleboards - Specifications

This European Standard specifies the requirements for flat-pressed or calendar-pressed unfaced particleboards as defined in EN 309. NOTE 1 This standard is called up in EN 13986 for construction applications. Products specified in this standard are referred to in EN 13986 as resin-bonded particleboards. The values listed in this standard relate to product properties, but they are not characteristic values to be used in design calculations. NOTE 2 Such characteristic values (e.g. for use in design calculation in EN 1995-1-1) are given either in EN 12369-1 or derived by testing according to EN 789, EN 1058 and ENV 1156. Additional information on supplementary properties for certain applications is also given. NOTE 3 Particleboards in accordance with this standard may be referred to as P1 to P7-boards. Boards of type P4 to P7 are intended for use in design and construction of load-bearing or stiffening building elements, e.g. walls, flooring, roofing and I-beams (see EN 1995-1-1 and/or performance standards). This standard does not apply to extruded particleboards and flaxboards, which are standardised in EN 14755 and EN 15197 respectively.

Test Requirement 測試要求：

1 Thickness,Length and Width 厚度，長度和寬度(EN 324-1)
2 Edge straightness 直邊度(EN 324-2)
3 Squarencess tolerances 直角度(EN 324-2)
4 Moisture content 水份含量 (EN 322)
5 Tolerance on mean density within a board (EN 323)同一面板內的平均密度誤差
6 Foraldehyde potential 甲醛釋放量（EN 120）
7 Foraldehyde potential 甲醛釋放量（EN 717-1）
Selective Requirement 個別要求
Type P1: general purpose board for use in dry conditions
1 Internal bond 內部結合強度(EN 319)
2 Bending strength 抗彎強度 (EN 310)
Type P2: for interior fitments (including furniture) for use in dry conditions
Type P4: for load-bearing boards for use in dry conditions
Type P6: for heavy duty load-bearing boards for use in dry conditions
1 Internal bond 內部結合強度(EN 319)
2 Modulus of elasticity in bending (EN 310)抗彎彈性模數
3 Bending strength 抗彎強度 (EN 310)
4 Surface soundness 表面穩固性（EN 311）
Type P3: for non load-bearing boards for use in humid conditions
Type P5: for load-bearing boards for use in humid conditions
Type P7: for heavy duty load-bearing boards for use in humid conditions
1 Internal bond 內部結合強度(EN 319)
2 Modulus of elasticity in bending (EN 310)抗彎彈性模數
3 Bending strength 抗彎強度 (EN 310)
4 Swelling in thickness 24 h 浸水厚度膨脹 (EN 317)
5 OPTION1: internal bond after cyclic test & swelling in thickness after cyclic test (EN 321) 　
6 OPTION2: internal bond after boil test (EN 1087-1)
7 Marking 標記