QB/T 4156-2010Office furniture - Microcomputer desk (English PDF)

4.1 Classification by material

a) Wooden microcomputer desk: The main component's material is wood or artificial wood material;

b) Metal microcomputer desk: The main component's material is metal material;

c) Steel-wood microcomputer desk: The main component's materials are wood or artificial wood materials and metal materials.

Mixed material microcomputer desk: The desktop, shelf or bracket is made of glass or other materials; the main frame parts are made of wood, metal or steel wood.

4.2 Classification by desktop height adjustment function

6.2 Determination of shape and position tolerances

It is carried out, according to the provisions of GB/T 3324-2008 or GB/T 3325-2008.

6.3 Visual inspection

It is carried out, according to the provisions of GB/T 3324-2008 or GB/T 3325-2008.

6.4 Structural inspection

Adopt manual and visual inspections.

6.5 Test of physical-chemical properties

6.5.1 Determination of wood moisture content

It is carried out, according to the provisions of GB/T 3324-2008.

6.5.2 Test of surface physical-chemical properties

It is carried out, according to GB/T 3324-2008 or GB/T 3325-2008, as well as the provisions of Table 4.

6.6 Mechanical properties test

It is carried out, according to the provisions in Table 5.

6.7 Determination of limits of hazardous substances

It is carried out, according to the provisions of GB 18584.

7.1 Inspection classification

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

7.2 Exit-factory inspection

7.2.1 Exit-factory inspection items

The exit-factory inspection items are 5.1 ~ 5.4 and 5.5.1.1 in Chapter 5.

7.2.2 Sampling and group-batching rules

The exit-factory inspection shall be for all products. Due to the large batch size, if it is difficult to carry out the 100% inspection, the sampling inspection can be carried out.

The sampling inspection method is based on the provisions of GB/T 2828.1-2003, using b) After the official production, if there are major changes in structure, material, process, which may affect the performance of the product;

c) During normal production, an inspection shall be carried out periodically or after accumulating a certain amount of output; the inspection period is generally one year;

d) When the production is resumed, after long-term suspension;

e) When there is a big difference between the exit-factory inspection result and the last type inspection;

f) When the national quality supervision agency puts forward the requirements for type inspection.

7.3.3 Sampling rules

In an inspection cycle, 2 samples are randomly selected from the recently produced products, wherein 1 is sent for inspection and 1 is sealed for retention.

7.3.4 Judgment of type inspection results

The judgement shall be carried out, according to the provisions of 7.2.3.1.

8 Marking, instruction for use, packaging, transportation, storage

8.1 Marking

8.1.1 The product marking shall at least include the following contents: product name, desk height grade or height adjustable range, name of main materials, implemented standard number, inspection certificate, production date or batch number, Chinese manufacturer's name, address.

8.1.2 The pictorial signs of packaging shall comply with the provisions of GB/T 191.

8.2 Instructions for use

The preparation of product's instructions for use shall be in accordance with the provisions of GB 5296.6; the content shall at least include:

a) Product name, desk height grade or height adjustable range;

b) The main dimensions of the product and the dimensions of the microcomputer bracket;

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