GB/T 40004-2021Copper-silver alloy rectangular wire (English PDF)

6.5 Hydrogen embrittlement test

The hydrogen embrittlement test of the rectangular wire is carried out according to GB/T 23606.

6.6 Bending test

The bending test of the flat rectangular is carried out according to GB/T 232.

6.7 Surface quality

The surface quality of the rectangular wire shall be inspected visually.

7.1 Inspection and acceptance

7.1.1 The rectangular wire is checked and inspected by the supplier or a third party to ensure that the product quality meets the requirements of this Standard and the purchase order.

7.1.2 The purchaser can inspect and accept the received rectangular wire in accordance with the provisions of this Standard. If the inspection result is not in conformity with the provisions of this Standard and the purchase order, it shall be submitted to the supplier in written form, and the supplier and the purchaser shall negotiate and resolve it. Objections that belong to size deviation and appearance quality shall be raised within one month from the date of receipt of the product. Objections related to other properties shall be raised within three months from the date of receipt of the product. If arbitration is required, it shall be determined by both the supplier and the purchaser on the purchaser's joint sampling or negotiation.

7.2 Batching

The rectangular wire shall be submitted in batches for acceptance. Each batch shall be composed of the same designation, state and specification. The weight of each batch shall not exceed 2000kg.

7.3 Inspection items

The inspection items of rectangular wire are divided into exit-factory inspection items and type inspection items, see Table 8. Type inspection shall be carried out in any of the following situations: […]

8.1 Marks, packaging, transportation, storage

The marks, packaging, transportation, storage of the rectangular wire shall comply with the provisions of GB/T 8888.

8.2 Accompanying documents

Each batch of products shall be accompanied by accompanying documents, which shall include supplier information, product information, reference of this Standard, date of manufacture or packaging date and shall also include:

a) Product quality guarantee:

- Main performance and technical parameters of the product;

- Product characteristics (including the characteristics of manufacturing processes and raw materials);

- Responsibility for product quality;

- Quality certification of the product and the analysis and inspection results of the supplier's technical supervision department;

b) Product certification:

- Inspection items and their results or inspection conclusions;

- Batch or batch number;

- Inspection date;

- Inspector's signature or seal;

c) Inspection reports and finished product inspection reports during product quality control;

d) Product instructions on use: correct handling, use, storage methods;

e) Others.