GB/T 32487-2016General technical requirements for plastic furniture (English PDF)

5.3.2 Flatness

Use flatness measuring appliance of which precision is not less than 0.03mm.

Select three plates with the most serious unevenness. Measure distance from reference line within a length of 0~150mm on surface. Take the maximum distance as measured value of flatness.

5.3.3 Adjacent side perpendicularity

Use steel ruler or tape measure of which precision is not less than 1mm.

Measure lengths of two diagonals and opposite sides of a rectangular plate or frame. Difference shall be measured value of adjacent side perpendicularity.

5.3.4 Dislocation

Use dislocation measuring appliance of which precision is not less than 0.1mm.

Select tested part with maximum distance between adjacent surfaces to measure. Select any surface from this adjacent surface as measuring reference surface. Place base surface of appliance on measuring reference surface.

Measuring surface of appliance measures another adjacent surface (along with adjacent surface, measure one or more parts). When measured values are both positive (or negative) values, take the maximum absolute value as measured value of dislocation. When measured values are positive and negative, take sum of maximum absolute values as measured value of dislocation and maximum measured value as evaluated value of dislocation.

5.3.5 Splitting

Use feeler gauge to measure. Before measurement, it shall open and close drawer or door three times to make drawer or door in closed position. Then measure splitting value at 5mm inside splitting ends. Take the maximum value as evaluated value of splitting.

5.3.6 Sag, swing degree

Use steel ruler or tape measure of which precision is not less than 1mm to measure. Place steel ruler on horizontal and side surfaces adjacent to measuring part of test piece. Extend test piece at 2/3 of total length. Measure free sag of horizontal edge of drawer and left-right swinging value of drawer side. Take maximum value as measured value of sag and swing degree.

5.3.7 Foot stability

Place test piece on a flat plate or on a flat ground. Use feeler gauge to measure some foot or distance between bottom and flat plate.

5.4 Appearance

5.4.1 Discoloration, color fading

Test 3 positions respectively on product appearance or interior finish. Use a wet skim white gauze with bare hands to apply a force to rub back and forth 3 times at each place. Reciprocating distance of rubbing is 200mm~300mm. Observe whether gauze has color on painted part.

5.4.2 Holes and gaps

In accordance with 7.5.3 in Gb 28007-2011.

5.4.3 Other appearance

It shall, under natural light or approximate natural light (e.g. 40W fluorescent light) of which illumination is in a range of 300lx~600lx, within a line of sight of

700mm~1000mm, use visual inspection or steel ruler of which precision is

0.5mm to measure. When there is a dispute, three people shall jointly test and use the same opinion of two or more people as test result.

5.5 Physical and chemical properties

5.5.1 Plastic piece

5.5.1.1 Heat-cold resistance cycle

In accordance with 4.31.1 in GB/T 17657-1999.

5.5.1.2 Hardness

In accordance with GB/T 2411.

5.5.2 Other pieces

5.5.2.1 Hardness

In accordance with GB/T 6739-2006.

5.5.2.2 Impact strength

In accordance with GB/T 1732.

5.5.2.3 Corrosion resistance

5.5.2.3.1 Preparation of test plate

Strength and durability of tables and tea tables shall be performed according to provisions on level 3 in GB/T 10357.1. Strength and durability of chairs and stools shall be performed according to provisions on level 3 in GB/T 10357.3.

Strength and durability of single-layer bed shall be performed according to provisions of GB/T 10357.6. Strength and durability of cabinets and racks shall be performed according to level 2 in GB/T 10357.5. Stability of tables and tea tables shall be performed according to provisions of GB/T 10357.7. Stability of chairs and stools shall be performed according to provisions of GB/T 10357.2 and GB/T 10357.8. Stability of cabinets and racks shall be performed according to provisions of GB/T 10357.4.

5.7 Hazardous substance limit

In accordance with GB 28481.

5.8 Flame retardancy

Flame retardancy of plastic furniture used in public places shall be performed in accordance with GB 20286. Flame retardancy of plastic furniture used in other places shall be performed according to agreement between supplier and purchaser.

5.9 Marks

Check whether product has marks. Check mark contents according to 7.1.

5.10 Instructions on use

Check whether product has instructions on use. Check contents of instructions on use according to 7.2.

6.1 Inspection classification

Inspection is classified into exit-factory inspection and type inspection.

6.2 Exit-factory inspection

6.2.1 Inspection items

Exit-factory inspection items include 4.2, 4.3, 4.4, 4.9 and 4.10.

6.2.2 Sampling and batching rules

Exit-factory inspection shall be subjected to full inspection. Since batch size is large, if it is difficult to perform full inspection, it shall perform sampling

6.3.2 Type inspection timing

Type inspection shall be performed in one of the following situations:

a) during normal production, type inspection shall be performed regularly;

inspection period is usually one year;

b) when great changes happen on raw and auxiliary materials and production process thereof;

c) production is resumed after discontinued production for a long time;

d) when trial model identification for new product or old product produced in transferred plant;

e) when user requests type inspection and it is specified in order contract;

f) when quality supervision agency requires type inspection.

6.3.3 Sampling rules

Within an inspection period, randomly extract 2 samples from products that are produced recently, one for inspection and the other for storage.

6.3.4 Type inspection procedures

Inspection procedures shall follow a principle of minimizing correctness of remaining inspection items.

6.3.5 Determination of inspection results

6.3.5.1 Determination of single product

When all basic items are accepted, when rejected general items do not exceed

4, this product shall be determined as accepted otherwise it shall be rejected.

6.3.5.2 Determination of set products

Each product of this set of products shall be determined according to 6.3.5.1.

When each product is determined as accepted, this set of products shall be accepted otherwise shall be rejected.

6.3.6 Re-inspection rules

If product is determined as rejected by type inspection, when there is objection to test result, it shall re-inspect stored spare sample. Inspect rejected items and un-inspected items due to test piece damage. Assess according to 6.3.5 and indicate “re-inspection” in inspection results.