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Decoration Color PVC Foam Board

Decoration Color PVC Foam Board

PVC color foam board: Product inspection sub-factory inspection and type inspection PVC color foam board products must pass the manufacturer's quality inspection department according to this standard's factory inspection project after passing the inspection and attach a certificate of...

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PVC color foam board: Product inspection sub-factory inspection and type inspection

PVC color foam board products must pass the manufacturer's quality inspection department according to this standard's factory inspection project after passing the inspection and attach a certificate of approval before leaving the factory. The same batch of raw materials, the same recipe, the same process, the same specifications of continuous production of the plate is a batch. Each batch must not exceed 60t. Take a board for the same unit.

The inspection of the appearance and size of plates shall be conducted in accordance with the normal secondary sampling scheme specified in GB/T 2828. The inspection level shall be II and the AQL shall be 6.5. The warpage, the diagonal difference, and the physical and mechanical properties were tested in batches, and three batches were taken at random for testing.

Factory inspection items: appearance, warpage, size limit deviation, diagonal difference, apparent density, Shore hardness.

Type test items: appearance, warpage, size limit deviation, diagonal line difference, apparent density, Shore hardness, tensile strength, elongation at break, simply supported beam impact strength, Vicat softening point, heating dimensional change Rate, bending strength. Combustion performance, gripping screw force and flexural modulus of elasticity are only checked when the customer needs it. The type test shall be conducted once a year during normal production, and shall be tested in one of the following situations.

a) When the major raw materials and processes have undergone major changes; b) Stop production for more than half a year and re-production;

c) When there is a big difference between the factory inspection result and the last type inspection; d) When the national quality supervision department requests it.

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