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Home > Quality Control > Inspection Procedures > Wood Flooring
  
  
  

WOOD FLOORING QUALITY INSPECTION PROCEDURE

 1. INSPECTION STANDARD

Our inspections abide by the Single Sampling Plans for Normal Inspection (SSPNI).

  

2. TOOLS

2.1 Hammer and tapping block

2.2 Vernier caliper

2.3 Feeler gauges

2.4 Target caliper for face veneer

2.5 Micrometer and metal bases

2.6 Measuring tape

2.7 Moisture meter

2.8 Light refractor

2.9 Single or multiple blade tool, cutting grid, soft brush, adhesive tape, magnifying glass

2.10 Pencils, sharpener, sand paper, pencil trolley, eraser

2.11 Pen, inspection forms, digital camera, video camera

  

3. SAMPLING

We sample in accordance with Level II of SSPNI[1] (see below).

  

4. INSPECTION PROCEDURE

4.1 We ensure the inspection table in flat. (click picture to enlarge)

4.2 We first check product quantity: number of m2 per carton, number of cartons per pallet and number of pallets per container.

4.3 We then check that packaging is appropriate: wrapping, boxing, palleting, foiling, bagging, marking, labelling and printing.

4.4 We determine the sample size in accordance with Level II of SSPNI.

4.5 We randomly select cartons for inspection. We mark selected cartons with China Link' s chop for easy identification and to ensure cartons inspected are in fact those selected. (click picture to enlarge)

4.6 We open every selected carton and individually inspect every single plank.

4.7 Plank inspection is broken down in:

4.7.1 Measurement (click picture to enlarge)

Length



Width



Thickness



Geometry

4.7.2 Moisture content (click picture to enlarge)

4.7.3 Wood grade and colour –all our inspectors are FM HUE colour competency certified-(click picture to enlarge)

4.7.4 Plank joining (click picture to enlarge)

4.7.5 Cupping (click picture to enlarge)

4.7.6 Height difference (click picture to enlarge)

4.7.7 Locking system depth (click picture to enlarge)

4.7.8 Length warping (click picture to enlarge)

4.7.9 Varnish brightness (click picture to enlarge)

4.7.10 Varnish adherence (click picture to enlarge)

4.7.11 Varnish hardness (click picture to enlarge)

4.8 Container closing and sealing (click picture to enlarge)

4.9 We write all data into China Link's inspection report and substantiate it with pictures (click picture to enlarge)

 4.10 We film the full inspection process all they way to the closing and sealing of the container (click picture to enlarge)

 

5. ASSESSING TEST RESULTS

We accept or reject an order on the basis of Acceptance Quality Levels (AQL) 0.65, 1.0 and 2.5 for Class A, B and C defects.

AQL' s for Class A, B and C defects
Defect Specification AQL (m2)
0.65 1.0 2.5
20FCL 40FCL 20FCL 40FCL 20FCL 40FCL
Class A varnish adherence force, varnish brightness index
1.5 2.5            
Class B moisture content, straightness of right angles and parallel sides, width, joining of tongue and groove, deformation       2.5 3.5      
Class C length, thickness, wood grade inconsistency             5.5 7.5

According to the SSPNI:

For a 20' container with 1,000 m2 of solid wood flooring, the sample size would be 80 m2. The container would be rejected if within the 80 m2  inspected there were more than 1.5 m2 of class A defects, more than 2.5 m2 of class B defects or more than 5.5 m2 of class C defects.

For a 40' container with 3,000 m2 of engineered wood flooring, the sample size would be 125 m2. The container would be rejected if within the 125 m2 inspected there were more than 2.5 m2 of class A defects, more than 3.5 m2 of class B defects or more than 7.5 m2 of class C defects.

[1] For example, for a 20' container with 1,000 m2 of solid wood flooring, the sample size would be 80 m2; for a 40' container with 3,000 m2 of engineered wood flooring, the sample size would be 125 m2.

  

  
  
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