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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
(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 (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.
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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