FZ/T 81008-2021Jackets (English PDF)

3.1 Instructions for use

The instructions for use are in accordance with the provisions of GB/T 5296.4 and GB

31701.

3.2 Size designation

3.3 Raw materials

3.3.1 Fabric

According to the relevant textile fabric standards, select fabrics that meet the quality requirements of this Standard.

3.3.2 Lining

Use lining that is suitable for the used fabric and meets the quality requirements of this

Standard.

3.3.3 Auxiliary materials

3.3.3.1 Interlining, shoulder pads, decorative lace, pocket cloth

Use interlinings, shoulder pads, decorative lace, pocket cloth suitable for the performance and colour of the used fabrics and linings, and their quality shall meet the requirements of this Standard.

3.3.3.2 Sutures, cords, elastic bands

Use sutures, cords, and elastic bands that are suitable for the performances of the used fabrics, linings, and auxiliary materials (except for decorative threads and decorative ribbons).

4.1 Inspection tools

4.1.1 Steel tape or ruler, the graduation value is 1mm.

4.2 Specification determination

The measurement method of the main part specifications is in accordance with the provisions of GB/T 31907; and the allowable deviation of the specifications is in accordance with the provisions of Table 4.

4.3 Appearance determination

4.3.1 The appearance inspection generally adopts lighting; the illuminance is no less than 600lx; and northern sky light can also be used if possible.

4.3.4 The stitch density is measured at 3cm on the finished sewing stitches (except for thick and thin parts).

4.3.5 The degree of warp and weft yarn skew is measured according to the provisions of GB/T 14801, and the result is calculated according to Formula (1).

4.4.6 The colour fastness to transfer in joints shall be tested in accordance with Method

A specified in GB/T 31127-2014.

4.4.7 Pilling is tested according to the provisions of GB/T 4802.1-2008 (among them, sanded fabrics, wool-like fabrics, and worsted fabrics are in accordance with Method

E; loose-structured worsted fabrics and woollen fabrics are in accordance with Method

F; and the rest are in accordance with Method D).

4.4.8 The tearing strength shall be tested in accordance with the provisions of GB/T

3917.2.

4.4.9 The peeling strength of the adhesive lining shall be tested in accordance with the provisions of FZ/T 80007.1.

4.4.13 For the test items that do not mention the sampling location, specimens can be selected from the finished product according to the test needs.

5.1 Inspection classification

5.1.1 Finished product inspection is divided into exit-factory inspection and type inspection. The timing of the type inspection is based on the actual conditions of the manufacturer or the contractual agreement. It is generally carried out when the production is transferred, resumed after stopping, and the raw materials or processes have major changes.

5.2 Appearance quality grade and defect classification rules

5.2.1 Appearance quality classification

The quality level of finished products is based on the existence and severity of defects.

The single product in the sample is classified by the number of defects and its severity;

and the batch grade is classified by the number of grades of the single products in the sample.

5.2.2 Classification of appearance defects

A single product that does not meet the technical requirements specified in this

Standard constitutes a defect.

5.4 Judgment rules

5.4.1 Appearance judgment of a single piece (sample)

Superior products. the number of serious defects = 0, the number of major defects =

0, the number of minor defects <= 4.

5.4.2 Determination of batch grade

Superior product batch. The number of superior products in the appearance inspection sample is >=90%, the number of Class-I products and qualified products is <=10%, and no unqualified products are included. All physical and chemical property tests have met the requirements of superior products index.

5.4.3 Qualification judgment

If the number of batches judged in the random inspection complies with the provisions of corresponding level in 5.4.2, it shall be judged to be a qualified batch. Otherwise, the batch of products is judged to be unqualified.

5.4.4 Re-inspection provisions

When the number of batches judged in the random inspection does not meet the requirements of this Standard or the delivery parties have objections to the inspection results, a second random inspection can be carried out, and the number of random inspections shall be doubled. Take the re-inspection result as the final judgment result.